CN109013046A - A method of recycling spodumene from the solid waste of magnetism containing spodumene - Google Patents
A method of recycling spodumene from the solid waste of magnetism containing spodumene Download PDFInfo
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- CN109013046A CN109013046A CN201810874984.4A CN201810874984A CN109013046A CN 109013046 A CN109013046 A CN 109013046A CN 201810874984 A CN201810874984 A CN 201810874984A CN 109013046 A CN109013046 A CN 109013046A
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- spodumene
- solid waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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Abstract
The invention belongs to solid waste comprehensive reutilization fields, specifically, it is related to a kind of method that spodumene is recycled from the solid waste of magnetism containing spodumene, the invention discloses a kind of methods of magnetic retention scrap concrete spodumene, ferromagnetism impure mineral is removed by low intensity magnetic separation, in passing through again, high field intensity magnetic separation, remove weak magnetic impure mineral, and in this, high field intensity magnetic tailing obtains spodumene concentrate after carrying out flotation, the present invention efficiently solves the problems, such as that magnetic separation removal is mingled with the recycling of spodumene in the process, simultaneously to raising Mineral Resources in China comprehensive utilization ratio, improving lithium resource supportability has profound significance.
Description
Technical field
The invention belongs to solid waste comprehensive reutilization fields, specifically, being related to a kind of from magnetic containing spodumene
The method of spodumene is recycled in solid waste.
Background technique
Lithium is known as " energy metal " in 21 century development in Hi-Tech, and the lithium as power source battery electrode material is wide
It is general to be applied to the industries such as aerospace, rail traffic, power electronics, new-energy automobile.As new-energy automobile important composition portion
The lithium metal divided, as China " energy conservation and new-energy automobile estate planning (2011-2020) ", " made in China 2025 " are to lithium
The guidance of ion battery exploitation, demand are more fierce.Global lithium resource is broadly divided into delegation chain and brine type mine
Bed two types, at present China's lithium supply are mainly mineral products lithium resource.Spodumene concentrate is generally obtained using beneficiation method, then
Lithium carbonate is prepared again.Spodumene concentrate is prepared in lithium carbonate transformation process, more demanding to iron content, international spodumene factory
Family is all made of High gradient high intensity magnetic separation and carries out spodumene except iron.It is influenced by iron content in lithium ore, either before flotation spodumene
In advance except iron or spodumene concentrate remove iron, using current international high-gradient magnetic separation apparatus, there is high gradient magnetic production
Spodumene is mingled with serious problem in object, and 10~25% spodumenes are lost in magnetic separation magnetic product, and it is discarded to form magnetic retention
Object.It solves the problems, such as that high-gradient magnetic separation is mingled with the recycling of spodumene, the rate of recovery of lithium can be improved conscientiously, reinforce the supportability of lithium,
It pushes new-energy automobile, new energy and energy conservation and environmental protection industry quickly to grow, constructs sustainable development new model.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of solid from magnetism containing spodumene
The method of recycling spodumene in useless, the spodumene resource in high efficiente callback magnetic product, turns waste into wealth, realizes that mine green is opened
Hair.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A method of it recycling spodumene from the solid waste of magnetism containing spodumene, the solid waste of magnetism containing spodumene is carried out at ore grinding
Reason obtain ore pulp, by low intensity magnetic separation remove ore pulp in ferromagnetism impure mineral, then using middle and high field strength to low intensity magnetic separation tailing into
Row high intensity magnetic separation removes the weak magnetic gangue mineral in low intensity magnetic separation tailing, and obtains spodumene after carrying out flotation to high intensity magnetic separation tailing
Concentrate.
A method of recycling spodumene from the solid waste of magnetism containing spodumene, comprising the following steps:
S1: the pretreatment of the solid waste of magnetism containing spodumene: ore grinding is carried out to the solid waste of magnetism containing spodumene and handles to obtain ore pulp；
S2: low intensity magnetic separation removes strongly magnetic mineral: by ore pulp obtained in S1 by low field strength permanent magnetic separator, obtaining
Ferromagnetism product and low intensity magnetic separation tailing a；
S3: high intensity magnetic separation removes weak magnetic mineral: the low intensity magnetic separation tailing a that S2 is obtained, by middle and high magnetic field strength magnetic separation,
Obtain weak magnetic impure mineral b and magnetic tailing c；
S4: magnetic tailing c flotation is selected: the magnetic tailing c that S3 is obtained, by flotation to get to spodumene concentrate and
Flotation tailing d.
In the present invention, the solid waste of magnetism containing spodumene is milltailings, melting waste slag, one of electronic waste or several
Kind.
In the present invention, the grade of spodumene is Li in the solid waste of magnetism containing spodumene2O 0.5-4%, magnetism containing spodumene are solid
Magnetic mineral content is 5-50% in useless, and weak magnetic mineral content is 30-40%, magnetic containing spodumene in the solid waste of magnetism containing spodumene
Property solid waste in strongly magnetic mineral content be 5-15%, quartz, feldspar, mica are contained in the solid waste of magnetism containing spodumene.
In the present invention, ore grinding is carried out to the solid waste of magnetism containing spodumene and handles to obtain ore pulp, when ore grinding control grinding fineness be-
0.074mm accounts for 50-75%.
In the present invention, weak magnetic is selected as roughing once or twice in S2, and used permanent magnetic motor is cylinder magnetic separator, magnetic field
Intensity is 0.05~0.45T.
In the present invention, in S2 when middle and high magnetic field strength magnetic separation, the magnetic separator used is high gradient magnetic separator, magnetic field strength
For 0.6~1.0T.
In the present invention, flotation is selected in S3, and roughing number is 1~2 time, and rough concentrate concentration times are 1~3 time, and scanning is 1
~3 times, chats sequence returns or open circuit, and wherein the additional amount of roughing floatation regulator is 100~800g/t, scans regulator
Additional amount is 0~400g/t, and the additional amount of roughing collecting agent is 500~1000g/t, the additional amount for scanning collecting agent is 0~
500g/t, g/t indicate that the grams of medicament is added in dry mine amount per ton in ore pulp.
In the present invention, the regulator is sodium carbonate, sodium hydroxide, calcium chloride, waterglass, calgon, lime, chlorine
Change the mixture of one or more of iron.
In the present invention, the fatty acid collecting agent is oleic acid and its soaps, aphthenic acids and its soaps, coco amine, xanthan
The mixtures of the one or more of sour sodium, tall oil, alkyl hydroximic acid, Salicyl Hydroximic Acid, benzyl hydroximic acid.
In the present invention, the grade of spodumene concentrate is Li2O 5-7.5%, the rate of recovery of spodumene concentrate are 50-90%.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
The present invention is recycled for the spodumene in spodumene removal of impurities impurity, creates new profit growth point, together
When reduce the discharge of solid waste.Environmental problem that is low and thus causing is comprehensively utilized to solve domestic and international lithium ore resources,
Technical guarantee is provided, green is pushed to increase, implements green new policies, improves the level of resources utilization and clean manufacturing water conscientiously
It is flat.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
The a part of attached drawing as the application, for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is process flow diagram of the invention；
Fig. 2 is the process flow chart of the embodiment of the present invention 1.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but is not limited to
The scope of the present invention.
Embodiment 1
The solid waste of magnetism containing spodumene is the magnetic separation removal tailing of Chinese certain spodumene mine production.Grinding fineness is -0.074mm
65% is accounted for, under the magnetic field strength of 0.35T, magnetic separation is carried out to spodumene magnetic separation removal tailing using roller, obtains ferromagnetism production
Object and low intensity magnetic separation tailing a；Under the magnetic field strength of 0.8T, high intensity magnetic separation is carried out to low intensity magnetic separation tailing a using high gradient magnetic separator, is obtained
To weak magnetic product and magnetic tailing c；Closed-circuit test process is returned to using the one thick two single-minded sequence swept, to magnetic tailing c into
Row flotation.500 g tons of roughing regulator sodium carbonate amount, 800 g tons of collecting agent oxidized paraffin wax soap after being sufficiently stirred, carry out
It sorts to get spodumene concentrate and flotation tailing is arrived.Experiment process is as shown in Fig. 2, test result is as shown in table 1.
Table 1: 1 test result of embodiment
| Name of product | Yield/% | Grade Li2O/% | The rate of recovery/% |
| Strongly magnetic mineral impurity | 10.24 | 0.54 | 2.87 |
| Weak magnetic mineral impurity | 35.80 | 0.67 | 12.45 |
| Spodumene concentrate | 24.71 | 5.87 | 75.27 |
| Flotation tailing | 29.25 | 0.62 | 9.41 |
| Clean solid waste | 100.00 | 1.93 | 100.00 |
Embodiment 2
The solid waste of magnetism containing spodumene is certain Chinese smelting enterprise waste residue of magnetism containing spodumene.Lithium in the solid waste of magnetism containing spodumene
The grade of pyroxene is 3.5%, and grinding fineness is that -0.074mm accounts for 70%, under the magnetic field strength of 0.3T, using roller to containing lithium
Pyroxene magnetism waste residue carries out magnetic separation, obtains ferromagnetism product and low intensity magnetic separation tailing a；Under the magnetic field strength of 0.9T, using high ladder
It spends magnetic separator and high intensity magnetic separation is carried out to low intensity magnetic separation tailing a, obtain weak magnetic product and magnetic tailing c；It single-minded is swept using one thick two
Sequence returns to closed-circuit test process, carries out flotation to magnetic tailing c.600 g tons of roughing regulator sodium carbonate amount, collecting agent
It 700 g tons of oxidized paraffin wax soap, after being sufficiently stirred, is sorted to get spodumene concentrate and flotation tailing, spodumene concentrate is arrived
Grade be Li2O 6.5%, the rate of recovery of spodumene concentrate are 70%.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene, which is characterized in that the solid waste of magnetism containing spodumene
It carries out ore grinding to handle to obtain ore pulp, the ferromagnetism impure mineral in ore pulp is removed by low intensity magnetic separation, then using middle and high field strength to weak
Magnetic tailing carry out high intensity magnetic separation, remove low intensity magnetic separation tailing in weak magnetic gangue mineral, and to high intensity magnetic separation tailing carry out flotation after
Obtain spodumene concentrate.
2. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 1, which is characterized in that
The following steps are included:
S1: the pretreatment of the solid waste of magnetism containing spodumene: ore grinding is carried out to the solid waste of magnetism containing spodumene and handles to obtain ore pulp；
S2: low intensity magnetic separation removes strongly magnetic mineral: by ore pulp obtained in S1 by low field strength permanent magnetic separator, obtaining strong magnetic
Property product and low intensity magnetic separation tailing a；
S3: high intensity magnetic separation removes weak magnetic mineral: the low intensity magnetic separation tailing a that S2 is obtained is obtained by middle and high magnetic field strength magnetic separation
Weak magnetic impure mineral b and magnetic tailing c；
S4: magnetic tailing c flotation is selected: the magnetic tailing c that S3 is obtained, and arrives spodumene concentrate and flotation by flotation
Tailing d.
3. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
The solid waste of magnetism containing spodumene is milltailings, melting waste slag, one of electronic waste or several.
4. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
The grade of spodumene is 0.5-4% in the solid waste of magnetism containing spodumene, and magnetic mineral content is 5- in the solid waste of magnetism containing spodumene
50%, weak magnetic mineral content is 30-40% in the solid waste of magnetism containing spodumene, and strongly magnetic mineral contains in the solid waste of magnetism containing spodumene
Amount is 5-15%, contains quartz, feldspar, mica in the solid waste of magnetism containing spodumene.
5. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
Ore grinding is carried out to the solid waste of magnetism containing spodumene and handles to obtain ore pulp, control grinding fineness is that -0.074mm accounts for 50-75% when ore grinding.
6. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
Weak magnetic is selected as roughing once or twice in S2, and used permanent magnetic motor is cylinder magnetic separator, and magnetic field strength is 0.05~
In 0.45T, S2 when middle and high magnetic field strength magnetic separation, for the magnetic separator used for high gradient magnetic separator, magnetic field strength is 0.6~1.0T.
7. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
Flotation is selected in S3, and roughing number is 1~2 time, and rough concentrate concentration times are 1~3 time, and scanning is 1~3 time, and chats sequence is returned
It returns or opens a way, wherein the additional amount of roughing floatation regulator is 100~800g/t, and the additional amount for scanning regulator is 0~400g/
T, the additional amount of roughing collecting agent are 500~1000g/t, and the additional amount for scanning collecting agent is 0~500g/t, and g/t indicates ore pulp
In dry mine amount per ton the grams of medicament is added.
8. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
The regulator is one of sodium carbonate, sodium hydroxide, calcium chloride, waterglass, calgon, lime, iron chloride or several
The mixture of kind.
9. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, which is characterized in that
The fatty acid collecting agent is oleic acid and its soaps, aphthenic acids and its soaps, coco amine, sodium xanthogenate, tall oil, alkyl hydroxyl
The mixtures of the one or more of oxime acid, Salicyl Hydroximic Acid, benzyl hydroximic acid.
10. a kind of method for recycling spodumene from the solid waste of magnetism containing spodumene according to claim 2, feature exist
In the Li of spodumene concentrate2O grade is 5-7.5%, and the rate of recovery of spodumene concentrate is 50-90%.
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| CN201810874984.4A CN109013046A (en) | 2018-08-02 | 2018-08-02 | A method of recycling spodumene from the solid waste of magnetism containing spodumene |
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| CN201810874984.4A CN109013046A (en) | 2018-08-02 | 2018-08-02 | A method of recycling spodumene from the solid waste of magnetism containing spodumene |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967223A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Apatite mine drop is miscellaneous to select phosphorus technique |
| CN112495999A (en) * | 2020-11-18 | 2021-03-16 | 华北理工大学 | Method for dissociating and recycling metal and nonmetal materials in electronic waste |
| CN112916196A (en) * | 2020-12-29 | 2021-06-08 | 内蒙古黄岗矿业有限责任公司 | Mineral processing technology for obtaining independent copper and zinc concentrates from low-copper high-zinc sulfide ores |
| CN114849898A (en) * | 2022-05-20 | 2022-08-05 | 山东晟锂环保科技有限公司 | Lithium iron separation application system for field-splitting magnetic separation on rough-separation particle lithium ore |
| WO2024148424A1 (en) * | 2023-01-09 | 2024-07-18 | Rio Tinto Iron And Titanium Canada Inc. | Spodumene concentration for lithium recovery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3710934A (en) * | 1970-06-29 | 1973-01-16 | Canadian Patents Dev | Concentration of spodumene using flotation |
| CN102886310A (en) * | 2012-10-19 | 2013-01-23 | 内蒙古科技大学 | Method for separating scandium concentrate from bayan obo tailings |
| CN104258979A (en) * | 2014-09-11 | 2015-01-07 | 四川南江新兴矿业有限公司 | Feldspar quarry beneficiation process |
| CN105381870A (en) * | 2015-12-10 | 2016-03-09 | 中国地质科学院矿产综合利用研究所 | Beneficiation and enrichment method for molybdenum oxide ore |
| CN107971127A (en) * | 2017-12-05 | 2018-05-01 | 广东省资源综合利用研究所 | The separated beneficiation method of bismuth sulphur in a kind of bismuth iron concentrate |
-
2018
- 2018-08-02 CN CN201810874984.4A patent/CN109013046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3710934A (en) * | 1970-06-29 | 1973-01-16 | Canadian Patents Dev | Concentration of spodumene using flotation |
| CN102886310A (en) * | 2012-10-19 | 2013-01-23 | 内蒙古科技大学 | Method for separating scandium concentrate from bayan obo tailings |
| CN104258979A (en) * | 2014-09-11 | 2015-01-07 | 四川南江新兴矿业有限公司 | Feldspar quarry beneficiation process |
| CN105381870A (en) * | 2015-12-10 | 2016-03-09 | 中国地质科学院矿产综合利用研究所 | Beneficiation and enrichment method for molybdenum oxide ore |
| CN107971127A (en) * | 2017-12-05 | 2018-05-01 | 广东省资源综合利用研究所 | The separated beneficiation method of bismuth sulphur in a kind of bismuth iron concentrate |
Non-Patent Citations (2)
| Title |
|---|
| 张杰等: "锂辉石矿浮选试验研究", 《矿物学报》 * |
| 温胜来等: "江西某低品位锂辉石矿选矿试验", 《金属矿山》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967223A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Apatite mine drop is miscellaneous to select phosphorus technique |
| CN112495999A (en) * | 2020-11-18 | 2021-03-16 | 华北理工大学 | Method for dissociating and recycling metal and nonmetal materials in electronic waste |
| CN112495999B (en) * | 2020-11-18 | 2023-04-18 | 华北理工大学 | Method for dissociating and recovering metal and nonmetal materials in electronic waste |
| CN112916196A (en) * | 2020-12-29 | 2021-06-08 | 内蒙古黄岗矿业有限责任公司 | Mineral processing technology for obtaining independent copper and zinc concentrates from low-copper high-zinc sulfide ores |
| CN112916196B (en) * | 2020-12-29 | 2022-08-23 | 内蒙古黄岗矿业有限责任公司 | Mineral processing technology for obtaining independent copper and zinc concentrates from low-copper high-zinc sulfide ores |
| CN114849898A (en) * | 2022-05-20 | 2022-08-05 | 山东晟锂环保科技有限公司 | Lithium iron separation application system for field-splitting magnetic separation on rough-separation particle lithium ore |
| WO2024148424A1 (en) * | 2023-01-09 | 2024-07-18 | Rio Tinto Iron And Titanium Canada Inc. | Spodumene concentration for lithium recovery |
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