GB1528061A - Processes for extracting copper - Google Patents
Processes for extracting copperInfo
- Publication number
- GB1528061A GB1528061A GB2134376A GB2134376A GB1528061A GB 1528061 A GB1528061 A GB 1528061A GB 2134376 A GB2134376 A GB 2134376A GB 2134376 A GB2134376 A GB 2134376A GB 1528061 A GB1528061 A GB 1528061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aqueous solution
- leaching
- ion exchange
- solution
- ions
- 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.)
- Expired
Links
- 239000010949 copper Substances 0.000 title abstract 10
- 229910052802 copper Inorganic materials 0.000 title abstract 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 5
- 239000007864 aqueous solution Substances 0.000 abstract 6
- 150000002500 ions Chemical class 0.000 abstract 6
- 238000005342 ion exchange Methods 0.000 abstract 5
- 238000002386 leaching Methods 0.000 abstract 5
- 239000000243 solution Substances 0.000 abstract 4
- 241000894006 Bacteria Species 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 2
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 abstract 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
Classifications
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- 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
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1528061 Recovery of copper M J MEIXNER 24 May 1976 [18 June 1975] 21343/76 Heading C1A Copper is extracted from mineral ore containing Cu, Fe and S by leaching with an aqueous solution containing H 2 SO 4 and one or more ferric salts so as to dissolve copper as Cu<SP>2+</SP> ions and to oxidize sulphides to elemental S or FeS 2 , extracting Cu<SP>2+</SP> ions from the aqueous solution by ion exchange with an equivalent amount of H+ ions and recycling the thus extracted aqueous solution to leach further ore, the ratio of Fe(II) to Fe(III) ratio in the recycled solution being adjusted to a value at which there is substantially no further oxidation of S-containing compounds to sulphates by aeration in the presence of oxidizing bacteria prior to recycle. The ion exchange is suitably effected using liquid ion exchangers in a counter current solvent extraction. The pH of the aqueous solution prior to exchange is preferably adjusted to less than 2À5 and following ion exchange is typically 1À3-2À2. The solution of Cu<SP>2+</SP> obtained by the ion exchange may be electrolysed to recover the pure copper and generate the H+ ions which are required to replace the Cu<SP>2+</SP> in the leaching solution. The total ion concentration of the aqueous solution is preferably maintained between 2 and 12 g/1, the amount of Fe(II) being maintained at a minimum value which is dependent upon pH, e.g. at least 0À2 g/1 at pH 1À7. The leaching solution may contain bacteria of one or both of the strains thiobacillus ferrooxidans and thio-oxidans. The leaching is preferably carried out at ambient temperature and a portion of the aqueous solution may be drawn off before the ion exchange and recycled directly to leach further ore. The residue from the leaching becomes enriched in S and the residues may be used as starting material in the production of sulphuric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES438675A ES438675A1 (en) | 1975-06-18 | 1975-06-18 | Processes for extracting copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1528061A true GB1528061A (en) | 1978-10-11 |
Family
ID=8469565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2134376A Expired GB1528061A (en) | 1975-06-18 | 1976-05-24 | Processes for extracting copper |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2501184C2 (en) |
| ES (1) | ES438675A1 (en) |
| GB (1) | GB1528061A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998039491A1 (en) * | 1997-03-03 | 1998-09-11 | Mintek | A process for the leaching of chalcopyrite |
| US7601530B2 (en) | 2004-10-22 | 2009-10-13 | Biosigma S.A. | Bacteria strain wenelen DSM 16786, use of said bacteria for leaching of ores or concentrates containing metallic sulfide mineral species and leaching processes based on the use of said bacteria or mixtures that contain said bacteria |
| US7700343B2 (en) * | 2005-08-17 | 2010-04-20 | Biosigma S.A. | Sulfur-oxidizing bacteria and their use in bioleaching processes for sulfured copper minerals |
| US12049681B2 (en) | 2015-04-17 | 2024-07-30 | Jetti Resources, Llc | Process for leaching metal sulfides with reagents having thiocarbonyl functional groups |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2294958B1 (en) * | 2003-07-15 | 2009-02-16 | Mintek | OXIDATIVE LIXIVIATION PROCEDURE. |
-
1975
- 1975-01-14 DE DE19752501184 patent/DE2501184C2/en not_active Expired
- 1975-06-18 ES ES438675A patent/ES438675A1/en not_active Expired
-
1976
- 1976-05-24 GB GB2134376A patent/GB1528061A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998039491A1 (en) * | 1997-03-03 | 1998-09-11 | Mintek | A process for the leaching of chalcopyrite |
| US6277341B1 (en) | 1997-03-03 | 2001-08-21 | Mintek | Process for the rapid leaching of chalcopyrite in the absence of catalysts |
| ES2169645A1 (en) * | 1997-03-03 | 2002-07-01 | Anthony Pinches | A process for the leaching of chalcopyrite |
| US7601530B2 (en) | 2004-10-22 | 2009-10-13 | Biosigma S.A. | Bacteria strain wenelen DSM 16786, use of said bacteria for leaching of ores or concentrates containing metallic sulfide mineral species and leaching processes based on the use of said bacteria or mixtures that contain said bacteria |
| US7700343B2 (en) * | 2005-08-17 | 2010-04-20 | Biosigma S.A. | Sulfur-oxidizing bacteria and their use in bioleaching processes for sulfured copper minerals |
| US8372628B2 (en) | 2005-08-17 | 2013-02-12 | Biosigma S.A. | Sulfur-oxidizing bacteria and their use in bioleaching processes for sulfured copper minerals |
| US12049681B2 (en) | 2015-04-17 | 2024-07-30 | Jetti Resources, Llc | Process for leaching metal sulfides with reagents having thiocarbonyl functional groups |
| US12049680B2 (en) | 2015-04-17 | 2024-07-30 | Jetti Resources, Llc | Process for leaching metal sulfides with reagents having thiocarbonyl functional groups |
Also Published As
| Publication number | Publication date |
|---|---|
| ES438675A1 (en) | 1977-03-01 |
| DE2501184C2 (en) | 1977-02-10 |
| DE2501184B1 (en) | 1976-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |