GB1460989A - Hydrometallurgical method for recovering copper values from copper concentrates - Google Patents
Hydrometallurgical method for recovering copper values from copper concentratesInfo
- Publication number
- GB1460989A GB1460989A GB3717674A GB3717674A GB1460989A GB 1460989 A GB1460989 A GB 1460989A GB 3717674 A GB3717674 A GB 3717674A GB 3717674 A GB3717674 A GB 3717674A GB 1460989 A GB1460989 A GB 1460989A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- residue
- solution
- leach solution
- leach
- 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
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
- C22B15/0069—Leaching or slurrying with acids or salts thereof containing halogen
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1460989 Recovering copper values NORANDA MINES Ltd 23 Aug 1974 [30 Aug 1973] 37176/74 Heading C1A Copper values are recovered from copper concentrates by dispersing the concentrate in an aqueous leach solution containing Cl- or Brions to form a slurry, carrying out the leaching operation of the slurry at an elevated temperature and under an overpressure of oxygen with the concentration of the Cl- or Brions being such as to transform a major proportion of the copper values present into a solid basic copper sulphate, separating the leach residue containing said basic copper sul phate from the leach solution and recovering coppervalues from said residue. The source of halogenions in the leach solution may be HCl, NaCl, CaCl 2 NH 4 Cl HBr, NaBr or KBr and the leach solution preferably contains a source of sulphate ions. The preferred leach solution is a mixture of HCl and H 2 SO 4 , said mixture containing at least 25% by weight of HCl. The molar ratio of halogen ions to copper ions in the slurry is preferably greater than 0À08 : 1 and the total amount of acid in the slurry is preferably such that the molar ratio H<SP>+</SP> : Cu is between 0À15 and 0À65 : 1.0. The leaching is suitably carried out at a temperature between 125 and 160 C. under an oxygen partial pressure of at least 180 p.s.i.g., preferably 200 to 300 p.s.i.g. with a pH of between 2À5 and 4À5. The leaching is suitably continued for a period sufficient to effect at least 90% and preferably over 97% conversion of Cu. The concentrates, which may be chalcopyrites, may be dispersed in the leach solution in as-received condition or may be ground for 30 minutes prior to dispersion. Upon separation of the leach residue, the residue is washed to eliminate remaining traces of Cl- or Brions and the values may be recovered from the residue by either selective dissolution of copper in an ammonia or ammonium sulphate solution followed by solvent extraction from the ammoniacal liquor, stripping with H 2 SO 4 and electrowinning from said acid solution or by leaching the residue in dilute H 2 SO 4 and electrowinning. The leach solution is suitably recycled. The leaching operation is preferably controlled so that not more than 40% of the converted copper goes into solution. The residue also contains elemental sulphur and any iron that was in the concentrate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA179,995A CA994109A (en) | 1973-08-30 | 1973-08-30 | Hydrometallurgical method for recovering copper values from copper concentrates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1460989A true GB1460989A (en) | 1977-01-06 |
Family
ID=4097703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3717674A Expired GB1460989A (en) | 1973-08-30 | 1974-08-23 | Hydrometallurgical method for recovering copper values from copper concentrates |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5322923B2 (en) |
AU (1) | AU472280B2 (en) |
BE (1) | BE819300A (en) |
BR (1) | BR7407151D0 (en) |
CA (1) | CA994109A (en) |
FI (1) | FI252374A (en) |
GB (1) | GB1460989A (en) |
PH (1) | PH10717A (en) |
SE (1) | SE405014B (en) |
SU (1) | SU629890A3 (en) |
ZM (1) | ZM13774A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1150062A (en) | 1980-06-10 | 1983-07-19 | Robert W. Stanley | Hydrometallurgical treatment of copper-bearing hematite residue |
US5650057A (en) * | 1993-07-29 | 1997-07-22 | Cominco Engineering Services Ltd. | Chloride assisted hydrometallurgical extraction of metal |
JP4732083B2 (en) * | 2005-09-07 | 2011-07-27 | Ykk Ap株式会社 | Bathroom fittings |
JP4565025B2 (en) * | 2008-07-23 | 2010-10-20 | 日鉱金属株式会社 | Leaching method of copper sulfide ore using iodine |
JP4950257B2 (en) * | 2009-08-24 | 2012-06-13 | Jx日鉱日石金属株式会社 | Method for leaching copper laminates from copper sulfide ores |
-
1973
- 1973-08-30 CA CA179,995A patent/CA994109A/en not_active Expired
-
1974
- 1974-07-31 PH PH16119A patent/PH10717A/en unknown
- 1974-08-23 GB GB3717674A patent/GB1460989A/en not_active Expired
- 1974-08-28 JP JP9883474A patent/JPS5322923B2/ja not_active Expired
- 1974-08-28 BE BE147994A patent/BE819300A/en unknown
- 1974-08-28 FI FI252374A patent/FI252374A/fi unknown
- 1974-08-28 BR BR715174A patent/BR7407151D0/en unknown
- 1974-08-29 SU SU742056805A patent/SU629890A3/en active
- 1974-08-30 SE SE7411011A patent/SE405014B/en unknown
- 1974-08-30 ZM ZM13774A patent/ZM13774A1/en unknown
- 1974-08-30 AU AU72832/74A patent/AU472280B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE405014B (en) | 1978-11-13 |
CA994109A (en) | 1976-08-03 |
BE819300A (en) | 1975-02-28 |
FI252374A (en) | 1975-03-01 |
AU7283274A (en) | 1976-03-04 |
SE7411011L (en) | 1975-03-03 |
JPS5051415A (en) | 1975-05-08 |
AU472280B2 (en) | 1976-05-20 |
ZM13774A1 (en) | 1975-06-23 |
PH10717A (en) | 1977-08-25 |
BR7407151D0 (en) | 1975-06-24 |
SU629890A3 (en) | 1978-10-25 |
DE2441342B2 (en) | 1975-09-25 |
DE2441342A1 (en) | 1975-03-27 |
JPS5322923B2 (en) | 1978-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |