CN110218881A - The method of active component in extractant composition and its application and recycling solution - Google Patents
The method of active component in extractant composition and its application and recycling solution Download PDFInfo
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- CN110218881A CN110218881A CN201810170614.2A CN201810170614A CN110218881A CN 110218881 A CN110218881 A CN 110218881A CN 201810170614 A CN201810170614 A CN 201810170614A CN 110218881 A CN110218881 A CN 110218881A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/40—Mixtures
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
- C22B34/225—Obtaining vanadium from spent catalysts
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/34—Obtaining molybdenum
- C22B34/345—Obtaining molybdenum from spent catalysts
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/36—Obtaining tungsten
- C22B34/365—Obtaining tungsten from spent catalysts
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
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Abstract
The present invention relates to denitrating catalyst resource technology field, the method for disclosing extractant composition and its application and recycling active component in solution.Extractant composition contains alkylamine, neutral phosphine extractant, higher alcohols and sulfonated kerosene.The method for recycling active component in solution includes: to contact the solution of pH 2-7 with the extractant, carries out that extract liquor is obtained by extraction to active component；Extract liquor is contacted with ammonium hydroxide and obtains the strip liquor containing active component to be stripped to active component；Active component is selected from least one of vanadium, wolfram element and molybdenum element.The beneficial effects of the present invention are: can disposably separate impurity with active constituent, adaptability is high；The active component rate of recovery is high；It is of less demanding to the concentration of active constituent in solution, there is the wider scope of application；Extractant composition after back extraction is Ke Xunhuanliyong, puts into be disposable, thus cost is very low；Required equipment and technique are also very simple.
Description
Technical field
The present invention relates to denitrating catalyst resource technology fields, and in particular to a kind of extractant composition, and its returning
It receives containing at least one of vanadium, wolfram element and molybdenum element as answering in the active component in the solution of active component
With and it is a kind of recycling containing at least one of vanadium, wolfram element and molybdenum element as the work in the solution of active component
The method of property component.
Background technique
For the energy resource structure in current China still based on coal, coal can discharge a large amount of nitrogen oxides in combustion
(NOx), cause the environmental pollutions such as serious regional gray haze, acid rain, harm is generated to human health and life.By 2015
The first half of the year, about 7.5 hundred million kilowatts of the thermoelectricity denitration unit capacity that put into operation.As at the beginning of the every megawatt generation unit SCR denitration of China
Loading amount (two layers) about 0.6~0.8m3, about 45~600,000 side of denitrating catalyst ownership.Important composition portion as denitration engineering
Point, the service life of denitrating catalyst about 24000 hours, i.e. for denitrating catalyst after operation 3 to four years, catalytic activity will
It is not able to satisfy denitration engine request, needing replacing raw catelyst or regeneration makes its activity recovery.
The technics comparing of denitrating catalyst regeneration techniques is fixed at present, including deashing, ultrasonic cleaning, chemical cleaning, activation
With calcining etc..Wherein activating process refers to immerse the denitrification catalyst module after cleaning in active supplement solution and makes to live for a period of time
Property component absorption be deposited on denitrating catalyst, the main component of this active supplement solution is vanadium, tungsten or molybdenum.Since inactivation denitration is urged
Contain a large amount of flyash in agent, in cleaning process generally before activation can not 100% removal it is clean, thus have few
Amount flyash is brought into activated bath, the such as K of the solable matter in flyash+、Na+、Al3+、Fe3+、Ca2+And Mg2+Plasma
It is dissolved in active supplement solution, after active supplement solution regenerates several batches of denitrating catalysts, will cause in active supplement solution not
Solubility impurity, K+、Na+、Al3+、Fe3+、Ca2+And Mg2+The raising of equal soluble impurities ion concentration, causes active supplement solution again
Fruit of coming into force decline needs to clean to active supplement solution or replace fresh activity replenisher.If directly exhausting failure activity supplement
Liquid simultaneously replaces fresh activity replenisher, will increase cost.
Currently temporarily there are not the article or patent report for being cleaned and being recycled to active supplement solution, can be for reference
Impurity removing technology or abstraction technique, the vanadium in waste catalyst recovery field and tungsten abstraction technique containing vanadium leachate in vanadium industry.?
In the purification of vanadium in vanadium industry, CN101709377A discloses a kind of method for purifying vanadium, including is added to containing in vanadium solution
Magnesium sulfate and alum remove Si, P impurity, but to other impurities ion such as Fe3+、Al3+、Ca2+、Mg2+、K+And Na+Do not remove
Ability.The technical solution that this application is related to needs containing the vanadium concentration in vanadium solution to be 25-30g/L, and application range is narrow.
CN102888512A discloses a kind of method for purifying vanadium, including oxidant is added into vanadium solution, makes Fe2+It is oxidized to Fe3+,
Fe impurity is removed, but to other impurities ion such as Si, Al3+、Ca2+、Mg2+、 K+And Na+There is no removal ability, obtained product is
Solid vanadate, the impurity being not suitable in the active supplement solution that cleans, the technical solution that this application is related to are needed containing vanadium solution
In vanadium concentration be 15-35g/L, application range is narrow.Use vanadium extractant from VOSO in CN104357658A4It is extracted in solution
Vanadium, and be stripped using sulfuric acid, rich vanadium strip liquor is obtained, ammonium salt is added in the strip liquor and carries out precipitation, but the technique is directed to
Vanadium state in vanadic sulfate, with active supplement solution is inconsistent, does not have versatility.Product is also unfit to do active supplement solution.
Tungsten extractant extracting vanadium tungsten solution is used in CN104862485A, vanadium and tungsten respectively enter raffinate and organic phase, rich vanadium raffinate
Liquid obtains vanadic anhydride through reprocessing, and rich tungsten organic phase is stripped and obtains ammonium paratungstate after purifying technique, but the document is not
The method of open reprocessing.CN104357658A and CN104862485A single can only be mentioned from vanadium solution or vanadium tungsten solution
Vanadium or tungsten are taken, if to extract vanadium tungsten simultaneously, needs extracting-back extraction twice, complex process.
Summary of the invention
The purpose of the invention is to overcome the above problem of the existing technology, a kind of extractant composition and benefit are provided
Use the extractant to containing at least one of vanadium, wolfram element and molybdenum element as the active group in the solution of active component
Divide the method recycled.
One aspect of the present invention provides a kind of extractant composition, which contains alkylamine, neutral phosphine extraction
Agent, higher alcohols and sulfonated kerosene.
Second aspect of the present invention provides application of the extractant composition as described above in recycling solution in active component,
Wherein, the active component is selected from least one of vanadium, wolfram element and molybdenum element.
Third aspect present invention provides a kind of method for recycling active component in solution, and the active component is selected from vanadium unit
At least one of element, wolfram element and molybdenum element, this method comprises:
(1) solution of pH 2-7 is contacted with extractant as described above, to the active component in the solution
It is extracted and obtains extract liquor；
(2) extract liquor is contacted with ammonium hydroxide to be stripped to the active component in the extract liquor, is contained
The strip liquor of active component.
The beneficial effects of the present invention are: (1) uses extractant composition provided by the invention, regardless of containing the active group
Which kind of impurity contained in the solution divided, can be disposable separated, the pure solution containing active component is obtained, is adapted to
Property it is high；(2) method of the invention is high-efficient, after single extraction-back extraction, can separate active component with impurity；(3) active
Component recovery is high, the rate of recovery intimate 100%；(4) the concentration requirement in the technical solution of the application to active constituent in solution
It is not high, there is the wider scope of application；(5) extractant composition after being stripped is Ke Xunhuanliyong, puts into be disposable, thus
Cost is very low；(6) equipment and technique needed for are also very simple.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present inventor has found under study for action, by by alkylamine, neutral phosphine extractant, higher alcohols and sulfonated kerosene
It is combined and is configured to for extracting the solution containing at least one of vanadium, wolfram element and molybdenum element as active constituent
In active constituent extractant when, the mutual cooperation between each ingredient enables to the extractant composition high specific
Vanadium, wolfram element or molybdenum element are extracted, and it is mutually exclusive with other impurities element, it makes it into raffinate phase, thus complete
At the purifying of active component.
Based on discovery as above, one aspect of the present invention provides a kind of extractant composition, which contains alkane
Base amine, neutral phosphine extractant, higher alcohols and sulfonated kerosene.
Although can containing alkylamine, neutral phosphine extractant, higher alcohols and sulfonated kerosene in the extractant composition
The extraction of specificity is carried out to active component as described above, but on the basis of the total weight of the extractant composition, institute
The content for stating alkylamine is 5-25 weight % (for example, 5 weight %, 10 weight %, 15 weight %, 20 weight %, 25 weights
Measure %), the content of the neutral phosphine extractant be 5-15 weight % (for example, 5 weight %, 8 weight %, 12 weight %, 15 weights
Measure %), the contents of the higher alcohols be 5-10 weight % (for example, 5 weight %, 6 weight %, 7 weight %, 8 weight %, 9 weights
Measure %, 10 weight %), the content of the sulfonated kerosene be 60-85 weight % (for example, 60 weight %, 65 weight %, 70 weights
Measure %, 75 weight %, 80 weight %, 85 weight %) when, the extracting power to active component can be further increased.
According to the present invention, the alkylamine can use the alkyl amine for being used as extractant of this field routine,
For example, one of primary amine, secondary amine, tertiary amine and quaternary ammonium salt or a variety of can be selected from, it is preferred that the molecule of alkyl amine extractant
Amount is 260-600.More preferably, the alkylamine be selected from PrimeneJM-T (primary amine, alkyl methylamine, domestic N1923,
Extract tungsten), Amine S-24 (secondary amine, N- laurylene, extract molybdenum), Alamine 336 (tertiary amine, trialkylamine, domestic N235, extraction
At least one of tungsten) and Aliquat-336 (quaternary ammonium salt, chlorination trialkyl methyl amine, domestic N263 extract tungsten), more preferably
Selected from PrimeneJM-T (primary amine, alkyl methylamine, domestic N1923 extract tungsten), Amine S-24 (secondary amine, N- laurylene, extraction
At least one of molybdenum) and Alamine 336 (tertiary amine, trialkylamine, domestic N235 extract tungsten).
According to the present invention, the neutral phosphine extractant can be various neutral phosphine extractants well known in the art, but in order to
Preferably extraction efficiency to active component of the cooperation to improve the extractant composition and the repulsion effect to impurity component
It answers, the neutrality phosphine extractant is preferably selected from diisoamyl methylphosphonate (DAMP), dibutyl-butylphosphonate (DBBP), methyl
At least one of two different mixed ester (P-311) of phosphonic acids and tributyl phosphate (TBP), more preferably tributyl phosphate (TBP).
According to the present invention, the higher alcohols can be various higher alcohols well known in the art, for example, can be advanced alkane
Alcohol, or low-grade alkane alcohol, the present invention are preferably low-grade alkane alcohol, more preferably carbon atom number be 8-10 low-grade alkane alcohol,
That is, the saturated monohydroxy alcohol of C8-C10, for example, the C8 alcohol (for example, n-octyl alcohol, sec-octyl alcohol) of linear chain or branched chain, linear chain or branched chain
The C10 alcohol of C9 alcohol, linear chain or branched chain.Sec-octyl alcohol specifically preferred according to the invention.
Second aspect of the present invention provides application of the extractant composition as described above in recycling solution in active component,
Wherein, the active component is selected from least one of vanadium, wolfram element and molybdenum element.
The third aspect of the present invention provides a kind of method for recycling active component in solution, and the active component is selected from vanadium unit
At least one of element, wolfram element and molybdenum element, this method comprises:
(1) solution of pH 2-7 is contacted with extractant as described above, to the active component in the solution
It is extracted and obtains extract liquor；
(2) extract liquor is contacted with ammonium hydroxide to be stripped to the active component in the extract liquor, is contained
The strip liquor of active component.
According to the technique and scheme of the present invention, extract by using extractant as above and be stripped in conjunction with ammonium hydroxide
It takes, the active component in solution, and obtained active group just can effectively only can be recycled by single extraction-back extraction
Impurity content is extremely low in point, and can be applicable in wider active component concentration range.
According to the present invention it is preferred to use the pH value of the solution is adjusted to 2-7, more preferably 2.5- by hydrochloric acid or sulfuric acid
4.5。
According to the present invention, the vanadium, wolfram element and molybdenum element can be present in the form of its water soluble salt of ammonia
In aqueous solution, for example, the vanadium can using ammonium metavanadate as carrier, the wolfram element can using ammonium metatungstate as carrier,
The molybdenum element can be using ammonium heptamolybdate as carrier.
A kind of preferred embodiment according to the present invention, the solution are the active supplement solution of denitrating catalyst.To de-
When denox catalyst is regenerated, be usually dipped in active supplement solution makes active component absorption be deposited on denitration for a period of time is urged
In agent, the main component of this active supplement solution is vanadium, tungsten or molybdenum.Due to containing a large amount of fine coal in inactivation denitrating catalyst
Ash, in cleaning process generally before activation can not 100% removal it is clean, thus have a small amount of flyash and be brought into activated bath
It is interior, the solable matter such as K in flyash+、Na+、Al3+、Fe3+、Ca2+And Mg2+Plasma is dissolved in active supplement solution
In.Therefore, active supplement solution of the present invention is the active supplement solution of inactivation or partial inactivation, usually contains K+、Na+、
Al3+、Fe3+、Ca2+And Mg2+At least one of impurity.
According to the present invention, before contacting the solution with extractant of the invention to carry out the extraction of active component,
In order to further increase impurity-eliminating effect, the method also includes the solution is successively settled and filtered.Wherein, described heavy
It drops and is carried out preferably in settling tank using the method for natural subsidence, the time of natural subsidence can be 6-12 hours, after
To the supernatant containing active component.The filtering carries out preferably in filter cloth, and the aperture of the filter cloth can be 400-800
Mesh.
According to the present invention, the dosage of the extractant can be changed in a wider scope, it is preferred that in order into one
The volume ratio of step raising extraction and impurity-eliminating effect, the extractant and the solution is 0.25-4, preferably 0.5-2.
According to the present invention, in order to further improve extraction and impurity-eliminating effect, the extraction is preferably under stirring conditions
It carries out, the stirring is preferably airflow stirring, for example, can carry out in pressure-air blender.
According to the present invention, the condition of the extraction can be changed in a wider scope, it is preferred that in order to further
Extraction and impurity-eliminating effect are improved, the temperature of the extraction is 15-40 DEG C, time 15-120min.After extraction, the work
Property ingredient enters in extractant, and the ingredients such as impurity stay in raffinate,
According to the present invention, back extraction and impurity-eliminating effect are carried out to extract liquor in order to further improve, the back extraction is excellent
Choosing carries out under stirring conditions, and the stirring is preferably airflow stirring, for example, can carry out in pressure-air blender.
According to the present invention, the condition of the back extraction can be changed in a wider scope, it is preferred that in order into one
Step improves back extraction and impurity-eliminating effect, and the temperature of the back extraction is 15-40 DEG C, time 15-120min.Back extraction terminates
Afterwards, the active constituent enters in ammonium hydroxide, and the extractant becomes blank organic phase, in order to save resource and realize extraction
Agent makes full use of, and preferably the blank organic phase is recycled.
According to the present invention, in order to further increase back extraction and impurity-eliminating effect, the concentration of the ammonium hydroxide is preferably 10-30 weight
Measure %.
According to the present invention, after back extraction, the obtained anti-stripping agent containing active constituent can be discharged into temporary storage tank,
Then the content of active component is analyzed, based on the analysis results and the predetermined concentration of active constituent supplements suitable activity
Ingredient, while supplemental acid or alkali adjust pH, for example, 9.2-9.3.
Embodiment
The present invention will be described in detail by way of examples below.
Step 2. in the medium that is filtered be filter cloth, 400-800 mesh.
Embodiment 1
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.7 weight % ammonium metavanadate
(with V2O5Meter), 1.3 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 4.5；
3. extractant is added into knockout drum, which is 5 weight %N1923,5 weight % tributyl phosphates
(TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.Then
It opens pressure-air to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction phase
It retains；
5. 10 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase into the organic extraction phase, open high
After pressure air is continuously stirred at room temperature 1 hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel,
Blank organic extraction is mutually deposited in extraction and separation tank and is recycled；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 2:
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 1.2 weight % ammonium metavanadates
(with V2O5Meter), 2.1 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
2. the failure active supplement solution is discharged into sedimentation basin and carries out natural subsidence 10 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute hydrochloric acid is added and adjusts pH to 4.0；
3. extractant is added into knockout drum, which is 10 weight %N1923,10 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 70 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 0.5.
It then turns on pressure-air to be continuously stirred at room temperature 1.5 hours, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten has extracter phase
It retains；
5. 20 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase into the organic extraction phase, open high
After pressing air persistently to stir 1.5 hours at room temperature, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel,
Blank organic extraction is mutually deposited in extraction and separation tank and is recycled；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.5 weight % and 2.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 3:
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.8 weight % ammonium metavanadate
(with V2O5Meter), 1.0 weight % ammonium heptamolybdates are (with MoO3Meter), pH 8.3.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 8 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 3.5；
3. extractant is added into knockout drum, which is 10 weight %N1923,10 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 70 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 2.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 0.5 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium molybdenum has extracter phase
It retains；
5. 30 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase into the organic extraction phase, open high
After pressure air persistently stirs 1 hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel, blank is organic
Extraction phase is deposited in extraction and separation tank and is recycled；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, molybdenum content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 4:
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 1.3 weight % ammonium metavanadates
(with V2O5Meter), 2.1 weight % ammonium heptamolybdates are (with MoO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 6 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 3.2；
3. extractant is added into knockout drum, which is 15 weight %N1923,15 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 60 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium molybdenum organic extraction phase
It retains；
5. 30 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, molybdenum content analysis, and supplement its concentration difference
For 1.5 weight % and 3.0 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 5
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.7 weight % ammonium metavanadate
(with V2O5Meter), 1.3 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 4.0；
3. extractant is added into knockout drum, which is 5 weight %Amine S-24,5 weight % tricresyl phosphates
Butyl ester (TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.
It then turns on pressure-air to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction phase
It retains；
5. 10 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, opens pressure-air and persistently stir at room temperature
After mixing 1 hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in
It is recycled in extraction and separation tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 6
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.8 weight % ammonium metavanadate
(with V2O5Meter).
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 3.5；
3. extractant is added into knockout drum, which is 5 weight %N235,5 weight % tributyl phosphates
(TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.Then
It opens pressure-air to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium organic extraction is mutually stayed
It deposits；
5. 10 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. taking the active supplement solution in active supplement solution holding vessel to carry out content of vanadium analysis, and supplementing its concentration is 1.0 weights
Measure %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 7
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.7 weight % ammonium metavanadate
(with V2O5Meter), 1.3 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 2.5；
3. extractant is added into extraction and separation tank, which is 5 weight %N235,5 weight % tricresyl phosphate fourths
Ester (TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction phase
It retains；
5. 10 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 8
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.8 weight % ammonium metavanadate
(with V2O5Meter), 1.0 weight % ammonium heptamolybdates are (with MoO3Meter), pH 8.3.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 3.5；
3. extractant is added into knockout drum, which is 5 weight %N235,5 weight % tributyl phosphates
(TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.Then
It opens pressure-air to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium molybdenum organic extraction phase
It retains；
5. 20 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, molybdenum content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 9
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 1.3 weight % ammonium metavanadates
(with V2O5Meter), 2.1 weight % ammonium heptamolybdates are (with MoO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 2.5；
3. extractant is added into knockout drum, which is 10 weight %N235,10 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 70 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium molybdenum organic extraction phase
It retains；
5. 30 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, opens pressure-air and persistently stir at room temperature
After mixing 1 hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in
It is recycled in extraction and separation tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, molybdenum content analysis, and supplement its concentration difference
For 1.5 weight % and 3.0 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 10
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.8 weight % ammonium metavanadate
(with V2O5Meter), 1.3 weight % ammonium metatungstates are (with WO3Meter), 1.0 weight % ammonium heptamolybdates, pH 8.3.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and dilute sulfuric acid is added and adjusts pH to 3.5；
3. extractant is added into knockout drum, which is 10 weight %N235,10 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 70 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction
Mutually retain；
5. 30% weak aqua ammonia of stripping agent is added into the organic extraction phase, opens pressure-air and persistently stir 1 at room temperature
After hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction
It is recycled in knockout drum；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, tungsten, molybdenum content analysis, and supplement its concentration point
It Wei not 1.0 weight %, 1.5 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 11
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.7 weight % ammonium metavanadate
(with V2O5Meter), 1.3 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and salt acid for adjusting pH is added to 4.5；
3. extractant is added into knockout drum, which is 8 weight %N263,8 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 74 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction phase
It retains；
5. 15 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 12
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 1.2 weight % ammonium metavanadates
(with V2O5Meter), 2.1 weight % ammonium metatungstates are (with WO3Meter), pH 8.5.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and salt acid for adjusting pH is added to 4.0；
3. extractant is added into knockout drum, which is 12 weight %N263,12 weight % tributyl phosphates
(TBP), 10 weight % sec-octyl alcohols and 66 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.With
Pressure-air is opened afterwards to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium tungsten organic extraction phase
It retains；
5. 20 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, opens pressure-air and continue at room temperature
After stirring 1 hour, stands and wait layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually retained
It is recycled in extraction and separation tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, W content analysis, and supplement its concentration difference
For 1.5 weight % and 2.5 weight %；
7. using sulphur acid for adjusting pH to 9.3.
Embodiment 13
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
The denitrating catalyst failure active supplement solution that certain regeneration factory provides, main component is 0.8 weight % ammonium metavanadate
(with V2O5Meter), 1.0 weight % ammonium heptamolybdates are (with MoO3Meter), pH 8.3.
1. the failure active supplement solution is discharged into sedimentation basin to carry out natural subsidence 12 hours；
2. being discharged into the extraction with pressure-air agitating function after the active supplement solution supernatant liquor of natural subsidence is filtered
Knockout drum, and salt acid for adjusting pH is added to 3.5；
3. extractant is added into knockout drum, which is 5 weight %N263,5 weight % acid tributyls
(TBP), 5 weight % sec-octyl alcohols and 85 weight % sulfonated kerosenes, organic extraction phase and initial extraction stoste volume ratio O/A are 1.Then
It opens pressure-air to be continuously stirred at room temperature 1 hour, and stands waiting layering；
4. lower layer's raffinate is discharged into waste water system and is uniformly handled after being layered；Upper layer richness vanadium molybdenum organic extraction phase
It retains；
5. 10 weight % weak aqua ammonia of stripping agent is added into the organic extraction phase, it is small that opening pressure-air persistently stirs 1
Shi Hou stands and waits layering；Strip liquor is then discharged into active supplement solution holding vessel, blank organic extraction is mutually deposited in extraction point
From being recycled in tank；
6. the active supplement solution in active supplement solution holding vessel is taken to carry out vanadium, molybdenum content analysis, and supplement its concentration difference
For 1.0 weight % and 1.5 weight %；
7. using sulphur acid for adjusting pH to 9.2.
Embodiment 14
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
According to active component in the method recycling solution of embodiment 10, the difference is that, TBP is replaced with to the DAMP of equivalent,
Sec-octyl alcohol is replaced with to the n-octyl alcohol of equivalent.
Embodiment 15
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
According to active component in the method recycling solution of embodiment 10, the difference is that, TBP is replaced with to the DBBP of equivalent,
Sec-octyl alcohol is replaced with to the n-nonyl alcohol of equivalent.
Embodiment 16
The present embodiment is used to illustrate the method that the present invention provides extractant and recycles active component in solution
According to active component in the method recycling solution of embodiment 10, the difference is that, TBP is replaced with to the P-311 of equivalent,
Sec-octyl alcohol is replaced with to the Decanol of equivalent.
Comparative example 1
The method that this comparative example is used to illustrate active component in the extractant and recycling solution of reference
According to active component in the method recycling solution of embodiment 10, the difference is that, alkane is not contained in extractant composition
Its dosage is 3 parts and is supplemented in neutral phosphine extractant, higher alcohols and sulfonated kerosene respectively by base amine.
Comparative example 2
The method that this comparative example is used to illustrate active component in the extractant and recycling solution of reference
According to active component in the method recycling solution of embodiment 10, unlike, it does not contain in extractant composition
Property phosphine extractant, is 3 parts for its dosage and is supplemented in alkylamine, higher alcohols and sulfonated kerosene respectively.
Comparative example 3
The method that this comparative example is used to illustrate active component in the extractant and recycling solution of reference
According to active component in the method recycling solution of embodiment 10, the difference is that, without containing height in extractant composition
Its dosage is 3 parts and is supplemented in alkylamine, neutral phosphine extractant and sulfonated kerosene respectively by carbon alcohol.
Comparative example 4
The method that this comparative example is used to illustrate active component in the extractant and recycling solution of reference
According to active component in the method recycling solution of embodiment 10, the difference is that, sulphur is not contained in extractant composition
Change kerosene, is replaced with the common kerosene of equivalent.
Test case
Measure containing for the active supplement solution active component after being stripped in embodiment 1-16 and comparative example 1-4 as above
Amount: vanadium, tungsten, molybdenum, potassium, sodium, iron, calcium and aluminium plasma concentration use inductive coupling in back extraction treated active supplement solution
Plasma emission spectrometer (ICP-OES) measurement.
Vanadium, tungsten and molybdenum recovery η are calculated as follows:
Wherein, M=vanadium, molybdenum or tungsten, CBefore M、CAfter MBefore respectively handling, vanadium, molybdenum or tungsten concentration in active supplement solution after processing,
VBefore、VAfterwardsRespectively handle before, processing after active supplement solution volume.
By embodiment 1-16 and comparative example 1-4, carry out vanadium, tungsten or molybdenum recovery respectively, impurity K, Na, Fe and Al etc. from
Sub- concentration determination is denoted as test case 1-16 and test comparison example 1-4.
It is equally dense to failure active supplement solution impurity K, Na, Fe and Al plasma before embodiment 1-16 processing respectively
Degree is tested, and takes its average value, is denoted as blank control.
The results are shown in Table 1 by test case 1-16 and test comparison example 1-4.
1. active supplement solution regeneration embodiment of table and comparative example test result compare
Compared to comparative example 1-4 it can be seen from the above table 1, using extractant provided by the invention and its processing method
Active supplement solution that treated, vanadium, tungsten and molybdenum recovery can return active component mostly more than 97% or more well
It receives, and compared to untreated failure active supplement solution, to K+、 Na+、Fe3+And Al3+Ion remaval rate is high, and almost all is gone
It removes, has reached concentration impurity ion in fresh activity replenisher, illustrate that method of the invention can be very good removal failure activity
Foreign ion in replenisher.
In addition, compared to embodiment 11-12 and 14-16, using the preferred alkylamine of the application, neutral phosphine extractant and height
Carbon alcohol can further increase the rate of recovery of active component and the removal rate of impurity.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (10)
1. a kind of extractant composition, which is characterized in that the extractant composition contains alkylamine, neutral phosphine extractant, high-carbon
Pure and mild sulfonated kerosene.
2. the composition according to requiring 1, wherein on the basis of the total weight of the extractant composition, the alkylamine
Content be 5-25 weight %, the content of the neutral phosphine extractant is 5-15 weight %, the content of the higher alcohols is 5-10
Weight %, the sulfonated kerosene content be 60-85 weight %.
3. composition according to claim 1 or 2, wherein the molecular weight of the alkylamine be 260-600, selected from primary amine,
One of secondary amine, tertiary amine and quaternary ammonium salt are a variety of；
Preferably, it is different mixed to be selected from diisoamyl methylphosphonate, dibutyl-butylphosphonate, methylphosphonic acid two for the neutral phosphine extractant
With one of ester and tributyl phosphate or a variety of；
Preferably, the higher alcohols are the saturated monohydroxy alcohol of C8-C10.
4. application of the extractant composition described in any one of claim 1-3 in recycling solution in active component,
In, the active component is selected from least one of vanadium, wolfram element and molybdenum element.
5. a kind of method of active component in recycling solution, the active component is in vanadium, wolfram element and molybdenum element
It is at least one, which is characterized in that this method comprises:
(1) extractant described in any one of the solution of pH 2-7 and claim 1-3 is contacted, to the solution
In active component extracted and obtain extract liquor；
(2) extract liquor is contacted with ammonium hydroxide to be stripped to the active component in the extract liquor, is obtained containing work
The strip liquor of property component.
6. according to the method described in claim 5, wherein, in step (1), the extraction carries out under conditions of airflow stirring,
The temperature of the extraction is 15-40 DEG C, time 15-120min.
7. method according to claim 5 or 6, wherein in step (1), the volume ratio of the extractant and the solution
For 0.25-4.
8. method according to claim 5 or 6, wherein in step (2), the back extraction is under conditions of airflow stirring
It carries out, the temperature of the back extraction is 15-40 DEG C, time 15-120min.
9. according to the method described in claim 5, wherein, this method further include: before step (1), successively to the solution
It is settled and is filtered.
10. the method according to any one of claim 5-9, wherein the solution is that the activity of denitrating catalyst is mended
Filling liquid；Also contain K in the solution+、Na+、Al3+、Fe3+、Ca2+And Mg2+At least one of.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760701A (en) * | 2019-11-07 | 2020-02-07 | 北京工业大学 | Extracting agent for recovering Mo from Mo-containing waste and method thereof |
| CN112501458A (en) * | 2020-11-12 | 2021-03-16 | 浙江大学 | Method for selectively extracting and separating molybdenum in waste catalyst leaching solution by using benzyl quaternary ammonium salt eutectic solvent |
| CN113430381A (en) * | 2021-06-25 | 2021-09-24 | 郑州大学 | Harmless treatment method for arsenic-containing waste SCR denitration catalyst |
| CN115198117A (en) * | 2022-07-25 | 2022-10-18 | 华北理工大学 | Method for extracting and separating vanadium from acidic solution by using bifunctional ionic liquid |
| CN115445604A (en) * | 2022-09-02 | 2022-12-09 | 国能龙源内蒙古环保有限公司 | Resource recycling method of waste denitration catalyst |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10226831A (en) * | 1997-02-14 | 1998-08-25 | Taiyo Koukou Kk | Treatment of waste liquid of molybdenum dissolution |
| CN1453379A (en) * | 2003-05-08 | 2003-11-05 | 锦州铁合金(集团)有限责任公司 | Wet process of extracting vanadium and/or molybdenum from waste catalyst |
| CN104805298A (en) * | 2015-05-22 | 2015-07-29 | 北京赛科康仑环保科技有限公司 | Method for recovering waste SCR (Selective Catalytic Reduction) denitration catalyst |
| CN104843788A (en) * | 2015-04-27 | 2015-08-19 | 苏州华电北辰环保技术有限公司 | Vanadium recovery method based on vanadium-containing solution extracted from waste SCR denitration catalyst |
| CN104862485A (en) * | 2015-05-22 | 2015-08-26 | 北京赛科康仑环保科技有限公司 | Vanadium and tungsten separating and purifying method for spent vanadium and tungsten SCR (selective catalytic reduction) catalysts |
| US20160333442A1 (en) * | 2015-05-12 | 2016-11-17 | Uchicago Argonne, Llc | Recovery and purification of transition elements |
-
2018
- 2018-03-01 CN CN201810170614.2A patent/CN110218881A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10226831A (en) * | 1997-02-14 | 1998-08-25 | Taiyo Koukou Kk | Treatment of waste liquid of molybdenum dissolution |
| CN1453379A (en) * | 2003-05-08 | 2003-11-05 | 锦州铁合金(集团)有限责任公司 | Wet process of extracting vanadium and/or molybdenum from waste catalyst |
| CN104843788A (en) * | 2015-04-27 | 2015-08-19 | 苏州华电北辰环保技术有限公司 | Vanadium recovery method based on vanadium-containing solution extracted from waste SCR denitration catalyst |
| US20160333442A1 (en) * | 2015-05-12 | 2016-11-17 | Uchicago Argonne, Llc | Recovery and purification of transition elements |
| CN104805298A (en) * | 2015-05-22 | 2015-07-29 | 北京赛科康仑环保科技有限公司 | Method for recovering waste SCR (Selective Catalytic Reduction) denitration catalyst |
| CN104862485A (en) * | 2015-05-22 | 2015-08-26 | 北京赛科康仑环保科技有限公司 | Vanadium and tungsten separating and purifying method for spent vanadium and tungsten SCR (selective catalytic reduction) catalysts |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760701A (en) * | 2019-11-07 | 2020-02-07 | 北京工业大学 | Extracting agent for recovering Mo from Mo-containing waste and method thereof |
| CN110760701B (en) * | 2019-11-07 | 2022-10-28 | 北京工业大学 | Extracting agent for recovering Mo from Mo-containing waste and method thereof |
| CN112501458A (en) * | 2020-11-12 | 2021-03-16 | 浙江大学 | Method for selectively extracting and separating molybdenum in waste catalyst leaching solution by using benzyl quaternary ammonium salt eutectic solvent |
| CN113430381A (en) * | 2021-06-25 | 2021-09-24 | 郑州大学 | Harmless treatment method for arsenic-containing waste SCR denitration catalyst |
| CN115198117A (en) * | 2022-07-25 | 2022-10-18 | 华北理工大学 | Method for extracting and separating vanadium from acidic solution by using bifunctional ionic liquid |
| CN115445604A (en) * | 2022-09-02 | 2022-12-09 | 国能龙源内蒙古环保有限公司 | Resource recycling method of waste denitration catalyst |
| CN115445604B (en) * | 2022-09-02 | 2023-11-10 | 国能龙源内蒙古环保有限公司 | Recycling recovery method of waste denitration catalyst |
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