CN1095388C - Dechlorinating agent and its preparing method - Google Patents
Dechlorinating agent and its preparing method Download PDFInfo
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- CN1095388C CN1095388C CN98121676A CN98121676A CN1095388C CN 1095388 C CN1095388 C CN 1095388C CN 98121676 A CN98121676 A CN 98121676A CN 98121676 A CN98121676 A CN 98121676A CN 1095388 C CN1095388 C CN 1095388C
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- CN
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- Prior art keywords
- dechlorinating agent
- dechlorinating
- agent
- hours
- water
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- 230000000382 dechlorinating effect Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title description 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000084 colloidal system Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000000440 bentonite Substances 0.000 claims abstract description 4
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims abstract description 4
- 229910006636 γ-AlOOH Inorganic materials 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 8
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 abstract description 5
- 239000000460 chlorine Substances 0.000 abstract description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract description 3
- 239000003337 fertilizer Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 150000003388 sodium compounds Chemical class 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 229940043430 calcium compound Drugs 0.000 abstract 1
- 150000001674 calcium compounds Chemical class 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 235000014413 iron hydroxide Nutrition 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 14
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 14
- 238000005303 weighing Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 2
- 229910052728 basic metal Inorganic materials 0.000 description 2
- 150000003818 basic metals Chemical class 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- -1 spectrophotometry Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a dechlorinating agent and a preparation method thereof. Calcium compounds, sodium compounds, aluminum hydroxide and iron hydroxide are used as active components; inorganic clay and bentonite are used as carriers, or colloid SiO2 and a hole expansion agent are also added; the dechlorinating agent is prepared by the drying at the temperature from 80 to 120 DEG C and the calcining at the temperature from 300 to 400 DEG C after mixed mulling for strip squeezing; the dechlorinating agent respectively has the components of the following weight percentage measured according to the oxides of 10 to 40% of CaO, 10 to 23% of Na2O, 5 to 11% of Al2O3, 11 to 24% of Fe2O3, 10 to 40% of inorganic bentonite, colloid SiO2 accounting for 0 to 5% of the weight of the matching materials and hole expansion agent accounting for 0 to 5% of the weight of the matching materials. The dechlorinating agent of the present invention has the advantages that low cost of raw materials and easy obtainment of the raw materials; HCl in gases can be lowered to be below 0.1 ppm from 1000 ppm, the penetration chlorine capacity reaches 40 to 50 m% at the moment, and the water-resistant performance is good. The present invention can be widely used for dechlorinating various gases in petrochemical industry and chemical fertilizer industry.
Description
The invention belongs to gas purifying agent that removes hydrogenchloride in the material gas and preparation method thereof.
In chemical fertilizer industry and petrochemical complex production, for various reasons, more or less contain hydrogen chloride impurity in the unstripped gas.Hydrogenchloride very easily causes the poisoning of catalyst inactivation to the toxic effect of many effective catalysts, goes back corrosive equipment simultaneously, generates the salt blocking pipeline, usually is forced to subtract car, parking because of the harm of chlorine in the production, has had a strong impact on ordinary production.
Be head it off, must effectively remove the hydrogenchloride in the unstripped gas, in both at home and abroad developing the different dechlorinating agent of many performances in succession and being applied to produce.US4762537 utilizes activated alumina and Y zeolite to handle the hydrogeneous reformed gas of HCl less than 100ppm.US4639259 loads on alkaline-earth metal on the aluminum oxide with X-ρ-η phase structure, and the chlorosity amount can reach 13.8m%, and degree of purification is less than 1ppm.US3935295 then adopts Ca (OH)
2Mix with ZnO, be extruded into bar, can remove micro-chlorine and a small amount of hydrogen sulfide, average chlorosity reaches 23.6m%.Publication number CN1064099A as active ingredient, sneaks into the natural inorganic clay with basic metal and alkaline-earth metal, HCl in the unstripped gas can be taken off to 0.5ppm, and the chlorosity amount reaches 35.2m%.Publication number CN1147977 then introduces zn cpds again in basic metal or alkaline-earth metal, chlorine in the unstripped gas can be removed to below the 0.1ppm, and the chlorosity amount reaches 30m%.In addition, adopt CuO-ZnO/Al in addition
2O
3The dechlorinating agent of component, the chlorosity amount is less than 15m%.Though dechlorinating agent kind and performance have had very great development more in early days, still need improve raising on degree of purification, water resistance.
The object of the present invention is to provide a kind of new dechlorinating agent and preparation method thereof, this dechlorinating agent raw material is easy to get and prepares easily, and cost is low and degree of purification is good, the chlorosity height, and water resistance is good, and the HCl that is used for petrochemical complex and the various chloride unstripped gass of chemical fertilizer industry removes.
Technical scheme of the present invention is: remove that the dechlorinating agent of hydrogenchloride is to contain calcium cpd such as CaO, sodium compound such as NaHCO in the material gas
3, Na
2CO
3, ironic hydroxide Fe (OH)
3, and aluminium hydroxide γ-AlOOH active constituent, the inorganic clay wilkinite carrier that form, wherein, the weight percentage of each component is respectively CaO 10-40%, Na by oxide compound
2O 10-23%, Al
2O
35-11%, Fe
2O
311-24%, inorganic bentonite 10-40%.
In dechlorinating agent of the present invention, have better intensity and water tolerance in order to make it, can in active constituent and carrier, add the colloid SiO of component weight percentage 0-5%
2, form more porous road in order to make dechlorinating agent inside, help the carrying out of mass transfer, improve chlorosity, can in active constituent and carrier, add a certain amount of expanding agent NH
4HCO
3Or urea, the addition of expanding agent is the 0-5% of batching overall weight percent.
Preparation method's step of this dechlorinating agent is:
1, ironic hydroxide is added water or also add the colloid SiO of proportional quantity
2With expanding agent NH
4HCO
3Or urea stirs into suspension:
2, calcium oxide, yellow soda ash or sodium bicarbonate, aluminium hydroxide γ-AlOOH and the wilkinite mixed grind of adding proportional quantity become paste in above-mentioned suspension, place this paste more than 4 hours;
3, with behind the 2 gained paste extruded mouldings in 80-120 ℃ of drying more than 2 hours, again 300-400 ℃ of roasting more than 2 hours promptly.
This dechlorinating agent side pressure strength is greater than 50N/cm.
It is soluble in water by ferrous sulfate that ironic hydroxide adds the suspension that water stirs into, and adds ammoniacal liquor then to pH ≈ 7 precipitations, filters eccysis SO
4 2-After add water slurrying again and form.
Dechlorinating agent of the present invention has following characteristics:
1, degree of purification and chlorosity amount height, in inlet gas during HCl content 100-1000ppm, in the outlet purified gas HCl content less than 0.1ppm, this moment the chlorosity amount up to 40-50m%,
2, water resistance is good, and is unaffected less than 5% o'clock performance in the unstripped gas moisture content.
3, raw material is cheap and easy to get, and technology is simple.
Further specify the characteristics and the preparation of this dechlorinating agent below by embodiment.
Embodiment 1
Take by weighing the 46.8g ferrous sulfate, be dissolved in 100mlH
2Among the O, progressively drip 3.0mol/L ammoniacal liquor and stirring again, to pH ≈ 7.0, filtration washing is to there not being SO
4 2-, filter cake is added the suitable quantity of water making beating, make its dispersion, add then and contain 11gCaO, 39gNa
2CO
3, 12g γ-AlOOH and the bentonitic mixed powder of 32g, carry out mixed grind and become paste, paste is placed back extruded moulding more than 4 hours, in 80-120 ℃ of drying 2 hours, 300-400 ℃ of roasting promptly got dechlorinating agent A in 2 hours then.
Embodiment 2
Take by weighing the 46.8g ferrous sulfate, be dissolved in the 100ml water, progressively drip 3.0mol/L ammoniacal liquor again, be stirred to pH ≈ 7.0, filtration washing is to there not being SO
4 2-, filter cake added contains 2gNH
4HCO
3With 5ml colloid SiO
2The slurrying again of mixing solutions (20m%) makes Fe (OH)
3Disperse, add then and contain 11gCaO, 39gNa
2CO
3, 12g γ-AlOOH and the bentonitic mixed powder of 20g, carry out mixed grind and become paste, paste is placed extruded moulding after 5-6 hour, in 80-120 ℃ of drying 2 hours, 300-400 ℃ of roasting promptly got dechlorinating agent B in 2 hours then.
Embodiment 3
Take by weighing the 46.8g ferrous sulfate and make the ironic hydroxide slurry, sneak into 25gCaO, 30gNa again by embodiment 1 described method
2CO
3, 19g γ-AlOOH and 10g wilkinite, placed 6 hours after the mixed grind, in 80-120 ℃ of drying 2 hours, 300-400 ℃ of roasting promptly got dechlorinating agent C in 2 hours.
Embodiment 4
Take by weighing the 72.8g ferrous sulfate, make ferric hydroxide precipitate, add and contain 2g urea and 3ml colloid SiO by embodiment 1 or 2
2The water of mixing solutions (20m%) is made the ironic hydroxide slurry, sneaks into 38gCaO, 15gNa again
2CO
3, 9g γ-AlOOH and 10g wilkinite, place 5-6 hour extrusion after the mixed grind, in 80-120 ℃ of drying more than 2 hours, 300-400 ℃ of roasting be more than 2 hours, dechlorinating agent D.
Embodiment 5
Take by weighing the 39.8g ferrous sulfate, make the ironic hydroxide slurry, sneak into 17gCaO, 36gNa again by embodiment 1 described method
2CO
3, 16g γ-AlOOH and 15g wilkinite, fully place extruded moulding after 6-7 hour after the mixed grind, 80-120 ℃ of drying 2 hours, 300-400 ℃ of roasting 2 hours, dechlorinating agent E.
Embodiment 6
Present embodiment removes the test result of HCl performance for dechlorinating agent A-E.The dechlorinating agent strength test is measured on intelligent intensity meter, in pressure measurement intensity (or shatter strength).The dechlorination performance test is carried out in φ 10mm stainless steel reactor, and dechlorinating agent A-E is broken into 20-40 purpose small-particle, respectively gets 2.0ml and packs in the reactor, and gas is H
2-N
2Gas mixture, volume space velocity 1000-3000h
-1, allocate HCl amount into and be 1000ppm, temperature of reaction 100-300 ℃, the pressure normal pressure, the chlorosity amount with HCl in the exit gas dechlorinating agent adsorptive capacity during greater than 0.1ppm represent, promptly penetrate chlorosity.
The alkali lye absorption is adopted in the measurement of hydrogenchloride, spectrophotometry, and sample was pulverized drying after chlorosity mensuration adopted and will penetrate, water logging after the weighing, cl content in the mensuration water calculates then, and the analysis of chlorine also is a spectrophotometry.Its result such as table 1.
Table 1
| Dechlorinating agent | Intensity N/cm | Air speed h -1 | Temperature of reaction ℃ | Chlorosity m% |
| A B C D E | 46 55 63 62 59 | 3000 3000 3000 3000 3000 1000 | 100 200 200 100 100 300 | 39.8 47.6 44.3 43.9 45.8 50.2 |
Claims (4)
1, a kind of dechlorinating agent is characterized in that containing CaO, Na
2CO
3Or NaHCO
3, Fe (OH)
3And the active constituent and the inorganic clay wilkinite carrier of γ-AlOOH formation, wherein the weight percentage of each component is respectively CaO 10-40%, Na by oxide compound
2O 10-23%, Al
2O
35-11%, Fe
2O
311-24%, inorganic bentonite 10-40%.
2, dechlorinating agent as claimed in claim 1 is characterized in that also containing colloid SiO
2, colloid SiO
20-5% for component weight percentage.
3, the preparation method of claim 1 or 2 described dechlorinating agents is characterized in that step is:
(1) ironic hydroxide is added water, perhaps also add the colloid SiO of proportional quantity
2The expanding agent NH of 0-5% with the batching overall weight percent
4HCO
3Or urea, stir into suspension:
(2) CaO, the Na of adding proportional quantity in (1) gained suspension
2CO
3Or NaHCO
3, γ-AlOOH and wilkinite, mixed grind becomes paste, then, places more than 4 hours;
(3) with behind the paste extruded moulding in 80-120 ℃ of drying more than 2 hours, again 300-400 ℃ of roasting more than 2 hours promptly.
4, preparation method as claimed in claim 3, it is soluble in water by ferrous sulfate to it is characterized in that ironic hydroxide adds the suspension that water stirs into, and adds ammoniacal liquor then to pH ≈ 7 precipitations, filters eccysis SO
4 2-After add water slurrying again and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121676A CN1095388C (en) | 1998-11-24 | 1998-11-24 | Dechlorinating agent and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121676A CN1095388C (en) | 1998-11-24 | 1998-11-24 | Dechlorinating agent and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1223898A CN1223898A (en) | 1999-07-28 |
| CN1095388C true CN1095388C (en) | 2002-12-04 |
Family
ID=5227236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98121676A Expired - Lifetime CN1095388C (en) | 1998-11-24 | 1998-11-24 | Dechlorinating agent and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095388C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354030C (en) * | 2004-11-01 | 2007-12-12 | 中国科学院生态环境研究中心 | Dechlorination agent and preparation method thereof |
| CN100453147C (en) * | 2005-12-07 | 2009-01-21 | 西北化工研究院 | Antichlor for catalytic reforming regenerated gas and preparation method |
| CN101804298B (en) * | 2010-04-10 | 2013-03-27 | 太原理工大学 | Method for preparing chlorine arresting agent |
| CN103127903B (en) * | 2013-03-22 | 2014-12-17 | 沈阳三聚凯特催化剂有限公司 | Normal-temperature dechlorinating agent |
| CN103316624B (en) * | 2013-06-08 | 2015-03-04 | 华烁科技股份有限公司 | Dephosphorization agent and preparation method thereof |
| CN109382388B (en) * | 2017-08-07 | 2022-05-13 | 中国石化扬子石油化工有限公司 | Method for preparing fresh dechlorinating agent from waste dechlorinating agent |
| CN115869900A (en) * | 2022-12-27 | 2023-03-31 | 上海恒业微晶材料科技股份有限公司 | Composite dechlorinating agent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4639259A (en) * | 1985-10-09 | 1987-01-27 | Kaiser Aluminum & Chemical Corporation | Promoted scavenger for purifying HCl-contaminated gases |
| US4762537A (en) * | 1985-11-07 | 1988-08-09 | Aluminum Company Of America | Adsorbent for HCl comprising alumina and acid-treated Y zeolite |
| CN1064099A (en) * | 1992-03-21 | 1992-09-02 | 南京化工学院 | Dechlorinating agent |
| CN1147977A (en) * | 1996-04-26 | 1997-04-23 | 湖北省化学研究所 | Refined antichlor and method for preparing same |
-
1998
- 1998-11-24 CN CN98121676A patent/CN1095388C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4639259A (en) * | 1985-10-09 | 1987-01-27 | Kaiser Aluminum & Chemical Corporation | Promoted scavenger for purifying HCl-contaminated gases |
| US4762537A (en) * | 1985-11-07 | 1988-08-09 | Aluminum Company Of America | Adsorbent for HCl comprising alumina and acid-treated Y zeolite |
| CN1064099A (en) * | 1992-03-21 | 1992-09-02 | 南京化工学院 | Dechlorinating agent |
| CN1147977A (en) * | 1996-04-26 | 1997-04-23 | 湖北省化学研究所 | Refined antichlor and method for preparing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1223898A (en) | 1999-07-28 |
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