CN101586186A - Method for leaching chalcopyrite and corresponding leaching agent - Google Patents
Method for leaching chalcopyrite and corresponding leaching agent Download PDFInfo
- Publication number
- CN101586186A CN101586186A CNA2009100946065A CN200910094606A CN101586186A CN 101586186 A CN101586186 A CN 101586186A CN A2009100946065 A CNA2009100946065 A CN A2009100946065A CN 200910094606 A CN200910094606 A CN 200910094606A CN 101586186 A CN101586186 A CN 101586186A
- Authority
- CN
- China
- Prior art keywords
- leaching
- chalcopyrite
- agent
- parts
- leaching agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 60
- 229910052951 chalcopyrite Inorganic materials 0.000 title claims abstract description 23
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 8
- 239000013067 intermediate product Substances 0.000 claims description 8
- VFWCMGCRMGJXDK-UHFFFAOYSA-N 1-chlorobutane Chemical compound CCCCCl VFWCMGCRMGJXDK-UHFFFAOYSA-N 0.000 claims description 6
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 4
- -1 biphosphate imidazole ion Chemical class 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 238000010907 mechanical stirring Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 13
- 239000010949 copper Substances 0.000 abstract description 13
- 229910052802 copper Inorganic materials 0.000 abstract description 13
- IQQRAVYLUAZUGX-UHFFFAOYSA-N 1-butyl-3-methylimidazolium Chemical compound CCCCN1C=C[N+](C)=C1 IQQRAVYLUAZUGX-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 229940085991 phosphate ion Drugs 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000009854 hydrometallurgy Methods 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000009867 copper metallurgy Methods 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for leaching chalcopyrite and corresponding leaching agent, belonging to the metallurgy technical field. The invention mainly adopts dihydroimidazol phosphate ion liquid ([BMIM]H2PO[4]) as leaching agent, matching with certain partial pressure of oxygen to leach the chalcopyrite, the leaching temperature is between 50 DEG C and 90 DEG C; the leaching pressure is normal pressure; the chalcopyrite granularity is between 100 and 200 meshes; the leaching time is 6-12 hours, the leaching rate of the copper is more than 95 %. The effect of the invention is that the reactor of the invention need not high temperature and high pressure devices, without adding catalyst or oxidizer, the impurity content in the leaching solution is less. the wastage of the leaching agent during leaching is less, the separation of the copper and the impurity is easy, the leaching agent can be used circularly, the production costs and the pollution can be reduced.
Description
Technical field
The present invention relates to a kind of leaching method and corresponding leaching agent of chalcopyrite, belong to metallurgical technology field.
Background technology
Copper metallurgy raw material 90% is from sulphide ores, and about 10% from oxidized ore, on a small quantity from native copper.As everyone knows, cupric oxide and native copper all very easily leach, sulphide ores is then difficult relatively, and chalcopyrite is as the abundantest chalcopyrite ore of reserves, account for 70% of world's known copper ore reserves, be the most difficult leaching a kind of in the sulphide ores, the leaching-out technique of innovation chalcopyrite all is the focus that field of metallurgy is paid close attention to all the time.
For many years, the leaching of chalcopyrite is the core of copper-sulphide ores hydrometallurgy always, hydrometallurgy worker is devoted to its hydrometallurgy research always, develops various art breading chalcopyrites, comprising roasting/leaching, pressurized acid leaching, chlorination leaching, ammonia soaks and biological leach etc.Along with the environmental consciousness of various countries is strengthened day by day, people more pay close attention to the green and the Sustainable development of metallurgical industry, and the various countries metallargist wishes to develop the hydrometallurgical processes of the novel green of less energy-consumption, low acid consumption, hypoxemia consumption, non-pollutant discharge.Simultaneously, along with chemistry mining---moltenly on the spot soak, the continuous development of technology such as dump leaching, bacterium leachings, solvent extraction/electrodeposition, the cost of wet type copper smelting is also reducing gradually, and wet type copper smelting is just becoming a trend of world's copper smelting.But, the untapped so far technology that goes out can generally handle the main primary ore-chalcopyrite of copper, this is the challenge that the industry of copper hydrometallurgy faces.
Summary of the invention
The object of the invention is to provide a kind of leaching agent and leaching method thereof of chalcopyrite, and its operating procedure is simple, selectivity good, leaching yield is high.
Solving the leaching agent that technical problem of the present invention adopts is: with the synthetic biphosphate imidazole ion liquid that obtains of toluene, n-propylcarbinyl chloride, N-Methylimidazole, phosphoric acid and distilled water.
Leaching agent is by synthetic obtaining of two steps, promptly 1. n-propylcarbinyl chloride and N-Methylimidazole mixed, and be solvent with toluene, reaction obtains intermediate product; 2. intermediate product mixes with phosphoric acid, and distilled water is solvent, and reaction obtains biphosphate imidazole ion liquid ([BMIM] H
2PO
4).
1. in the intermediate product preparation, the weight fraction of n-propylcarbinyl chloride is 70 parts, and the N-Methylimidazole is 25 parts, the toluene that adds 5 parts, mechanical stirring under 80～90 ℃ of argon shields, after underpressure distillation is purified, 70～80 ℃ of following vacuum-drying 8～12h get final product through back flow reaction 24～72h; 2. the weight fraction of intermediate product is 55 parts, and phosphoric acid is 30 parts, 15 parts of distilled water, and 100～110 ℃ of following mechanical stirring, underpressure distillation is purified behind back flow reaction 4～6h, and 110～120 ℃ of following vacuum-drying 8～12h can make.
The leaching method of described chalcopyrite of the present invention is:
Need not to add catalyzer or oxygenant when leaching, be equipped with the oxygen partial pressure of 17KPa～81KPa in the leaching process, fully stir down and leach, processing condition temperature when 1. leaching is controlled at 70～90 ℃; 2. oxygen partial pressure＞20%; 3. the weight ratio of chalcopyrite, water, leaching agent is 1: 5: 5; 4. leaching reaction pH is 0～1.5.
In leaching process this leaching agent also can in be equipped with 0.5～1mol/L sulfuric acid mix to use.
The invention has the beneficial effects as follows:
The reactor of this method need not high temperature, pressure exerting device, and leaching operation technology is simple, and the technology cost is low;
In addition, the making of leaching agent is easy, cost is low and can be recycled, thereby reduces manufacturing cost.
Embodiment
Elaborate below in conjunction with the application of example to this leaching agent.
Embodiment 1. takes by weighing brass breeze 100 grams of cupric 24.8%, fineness 100～200 orders, add leaching agent and water and regulate pH=0, liquid-solid ratio is 1: 5: 5 (being the weight ratio of chalcopyrite, water, leaching agent), 90 ℃ of temperature of reaction, normal pressure drum oxygen, agitation leach reaction 12 hours, the leaching yield of copper is 95%.
Embodiment 2. takes by weighing brass breeze 100 grams of cupric 24.8%, fineness 100～200 orders, add leaching agent and sulfuric acid and regulate pH=0.5, liquid-solid ratio is 1: 5: 5 (being the weight ratio of chalcopyrite, water, leaching agent), 70 ℃ of temperature of reaction, normal pressure drum air, agitation leach reaction 6 hours, the leaching yield of copper is 90%.
Embodiment 3. takes by weighing brass breeze 100 grams of cupric 24.8%, fineness 100～200 orders, add leaching agent and water and regulate pH=1, liquid-solid ratio is 1: 5: 5 (being the weight ratio of chalcopyrite, water, leaching agent), 90 ℃ of temperature of reaction, normal pressure drum air, agitation leach reaction 12 hours, the leaching yield of copper is 91%.
Claims (5)
1, a kind of leaching agent of chalcopyrite is characterized in that: leaching agent is the synthetic biphosphate imidazole ion liquid that obtains of toluene, n-propylcarbinyl chloride, N-Methylimidazole, phosphoric acid and distilled water.
2, leach agent by the described chalcopyrite of claim 1, it is characterized in that: leaching agent is by synthetic obtaining of two steps, promptly 1. n-propylcarbinyl chloride and N-Methylimidazole are mixed, and be solvent with toluene, reaction obtains intermediate product; 2. intermediate product mixes with phosphoric acid, and distilled water is solvent, and reaction obtains the biphosphate imidazole ion liquid.
3, leach agent by the described chalcopyrite of claim 2, it is characterized in that: 1. in the intermediate product preparation, the weight fraction of n-propylcarbinyl chloride is 70 parts, the N-Methylimidazole is 25 parts, the toluene that adds 5 parts, mechanical stirring under 80～90 ℃ of argon shields, after underpressure distillation is purified, 70～80 ℃ of following vacuum-drying 8～12h get final product through back flow reaction 24～72h; 2. the weight fraction of intermediate product is 55 parts, and phosphoric acid is 30 parts, 15 parts of distilled water, and 100～110 ℃ of following mechanical stirring, underpressure distillation is purified behind back flow reaction 4～6h, and 110～120 ℃ of following vacuum-drying 8～12h can make.
4, the described leaching agent of a kind of claim 1 is to the leaching method of chalcopyrite, it is characterized in that: in leaching process, be equipped with certain partial pressure, and fully stir, be equipped with the oxygen partial pressure of 17KPa～81KPa, and under agitation leach, temperature is controlled at 70～90 ℃ when 1. leaching; 2. oxygen partial pressure＞20%; 3. the weight ratio of chalcopyrite, water, leaching agent is 1: 5: 5; 4. leaching reaction pH is 0～1.5.
5, by the leaching method of the described chalcopyrite of claim 4, it is characterized in that: the sulfuric acid that is equipped with 0.5～1mol/L in leaching agent mixes use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100946065A CN101586186B (en) | 2009-06-19 | 2009-06-19 | Method for leaching chalcopyrite and corresponding leaching agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100946065A CN101586186B (en) | 2009-06-19 | 2009-06-19 | Method for leaching chalcopyrite and corresponding leaching agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101586186A true CN101586186A (en) | 2009-11-25 |
| CN101586186B CN101586186B (en) | 2012-07-25 |
Family
ID=41370612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100946065A Expired - Fee Related CN101586186B (en) | 2009-06-19 | 2009-06-19 | Method for leaching chalcopyrite and corresponding leaching agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101586186B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643988A (en) * | 2012-04-13 | 2012-08-22 | 西南科技大学 | Method for leaching metallic copper from waste printed circuit board by using ionic liquid |
| CN104831060A (en) * | 2015-04-07 | 2015-08-12 | 昆明理工大学 | Method for preparing zinc oxalate as zinc oxide powder precursor from middle/low-grade zinc oxide ore |
| CN105087930A (en) * | 2015-08-31 | 2015-11-25 | 贵州大学 | Method for extracting copper from structured rubble alterated rocks |
| CN117230313A (en) * | 2023-11-16 | 2023-12-15 | 长春黄金研究院有限公司 | Tin-lead immersing agent and process for treating tin and lead in electronic garbage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320137C (en) * | 2002-12-31 | 2007-06-06 | 熊尚彬 | Compound leaching agent and leaching method for leaching out copper pyrite using compound leaching agent |
-
2009
- 2009-06-19 CN CN2009100946065A patent/CN101586186B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643988A (en) * | 2012-04-13 | 2012-08-22 | 西南科技大学 | Method for leaching metallic copper from waste printed circuit board by using ionic liquid |
| CN102643988B (en) * | 2012-04-13 | 2013-07-10 | 西南科技大学 | Method for leaching metallic copper from waste printed circuit board by using ionic liquid |
| CN104831060A (en) * | 2015-04-07 | 2015-08-12 | 昆明理工大学 | Method for preparing zinc oxalate as zinc oxide powder precursor from middle/low-grade zinc oxide ore |
| CN105087930A (en) * | 2015-08-31 | 2015-11-25 | 贵州大学 | Method for extracting copper from structured rubble alterated rocks |
| CN117230313A (en) * | 2023-11-16 | 2023-12-15 | 长春黄金研究院有限公司 | Tin-lead immersing agent and process for treating tin and lead in electronic garbage |
| CN117230313B (en) * | 2023-11-16 | 2024-01-30 | 长春黄金研究院有限公司 | Tin-lead immersing agent and process for treating tin and lead in electronic garbage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101586186B (en) | 2012-07-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120725 Termination date: 20150619 |
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