IL41673A - Recovery of copper from sulfidic minerals - Google Patents
Recovery of copper from sulfidic mineralsInfo
- Publication number
- IL41673A IL41673A IL41673A IL4167373A IL41673A IL 41673 A IL41673 A IL 41673A IL 41673 A IL41673 A IL 41673A IL 4167373 A IL4167373 A IL 4167373A IL 41673 A IL41673 A IL 41673A
- Authority
- IL
- Israel
- Prior art keywords
- slurry
- leaching
- vessel
- copper
- temperature
- Prior art date
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract 13
- 229910052802 copper Inorganic materials 0.000 title claims abstract 13
- 239000010949 copper Substances 0.000 title claims abstract 13
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract 7
- 239000011707 mineral Substances 0.000 title claims abstract 7
- 238000011084 recovery Methods 0.000 title 1
- 238000002386 leaching Methods 0.000 claims abstract 26
- 239000002002 slurry Substances 0.000 claims abstract 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract 20
- 229910021529 ammonia Inorganic materials 0.000 claims abstract 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 6
- 239000001301 oxygen Substances 0.000 claims abstract 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000243 solution Substances 0.000 claims abstract 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract 3
- 239000007789 gas Substances 0.000 claims abstract 3
- 239000007864 aqueous solution Substances 0.000 claims abstract 2
- 230000002596 correlated effect Effects 0.000 claims abstract 2
- 230000003134 recirculating effect Effects 0.000 claims abstract 2
- 239000007787 solid Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims 16
- 239000008346 aqueous phase Substances 0.000 claims 4
- 239000012141 concentrate Substances 0.000 claims 2
- 238000005188 flotation Methods 0.000 claims 2
- 239000007790 solid phase Substances 0.000 claims 2
- 241001269524 Dura Species 0.000 claims 1
- 229910052947 chalcocite Inorganic materials 0.000 claims 1
- 229910001779 copper mineral Inorganic materials 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 241000512668 Eunectes Species 0.000 abstract 1
- 239000001166 ammonium sulphate Substances 0.000 abstract 1
- 230000007423 decrease Effects 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/24—Obtaining zinc otherwise than by distilling with leaching with alkaline solutions, e.g. ammonia
-
- 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
- C22B15/0078—Leaching or slurrying with ammoniacal solutions, e.g. ammonium hydroxide
-
- 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
- C22B15/0084—Treating solutions
- C22B15/0089—Treating solutions by chemical methods
- C22B15/0093—Treating solutions by chemical methods by gases, e.g. hydrogen or hydrogen sulfide
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0446—Leaching processes with an ammoniacal liquor or with a hydroxide of an alkali or alkaline-earth metal
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1404243 Recovering copper ANACONDA CO 6 March 1973 [7 March 1972] 10688/73 Heading C1A Copper is recovered from sulphidic minerals by leading a slurry of the minerals in aqueous solution containing ammonium sulphate and free ammonia in one, or sequentially in a series of closed leaching vessels at low pressure (<10 p.s.i.g.) at a temperature of 50-80‹ C., whilst recirculating oxygen bearing gas from above the slurry to below the surface thereof, vigorously agitating the slurry with a power input of 0À05 hp./cu.ft. of slurry and introducing fresh oxygen into the slurry, and withdrawing from the vessels a solution containing the copper complexed with the ammonia.
Free ammonia may be added to at least the first of the vessels at a rate equal to its consumption, and the concentration of the ammonia may be correlated with the slurry temperature which gradually rises through the series whilst the pH decreases from about 10 to 9À5.
The solution may be treated to recover the copper and form ammonium sulphate solution which may be recycled to the leachy.
The copper containing solids residue may be subjected to a secondary leaching under substantially the same conditions as the initial leaching.
(From GB1404243 A)
[FR2175095B1]
Claims (17)
1. The method of recovering copper from sulfidic minerals thereof which co m prises forming a slurry of said minerals in finely divided form in n aqueous solution containing ammonium sulfate and Tree ammonia, passing said slurry at a pressure below that requiri ng autoclave eq uipment into a closed leaching vessel , maintaining the temperature of the sl urry in the range from 50° C . to 80° C. , and withdrawing from said vessel slurry containing copper compl exed with ammonia d issolved in the aqueous phase and mineral matter depl eted in copper in the solid phase, characterized in that the body of slurry in said vessel is agitated with a vigor input of at least 0. 05 horsepower per cubic foot while introducing oxygen into the agitated sl urry at a substantial depth below the surface of said body.
2. The method according to Claim 1 wherein oxygen-bearing gas is continuously recirculated from above the body of agitated sl urry into said body at a substantial depth below the surface of s ch body.
3. The method of Claim 2 wherein the leaching operation is conducted by passing the slurry sequentially through a series of leaching vessels.
4. The method according to any of the preceding claims wherein the concentration of ammonia in the leaching vessel is correlated with the slurry temperature in such vessel to maintain the partial pressur of ammonia plus the partial pressure of water vapor in sucli vessel at least several psi below the total pressure therein.
5. The method according to any of the preceding claims wherein the aqueous phase of the slurry is maintained at a pH in the range from 9 to 11 throughout the leaching operation.
6. The method according to any of the preceding claims wherein free ammonia is added to the slurry at a rate corresponding approximately to the rate of its consumption.
7. The method according to any of the preceding claims wherein the pressure maintained in the leaching vessel is in the range from 3 to 8 psig.
8. The method according to aay of the preceding claims wherein the slurry in each leaching vessel is agitated vith a vigor input of at least 0.1 horsepower per cubic foot. .
9. The method according to Claim 3 wherei the pH of the aqueous phase of · t e slurry is about 10 an he first leaching vessel where the leaching temperature is minimum and is decreased to about 9· 5 in the last leaching vessel of the series where the leaching temperature is maximum.
10. The method according to either of claims 3 or 7 wherein the temperature of the slurry in the first leaching vessel in the series is maintained in the range from 50° to 6jl°C. end is increased by an amount from 3'"' to 10°C. , preferably about 5°0., in each ' subsequent vessel of at least the first several vessels of -the series.
11. The method according to Claim 10 wherein the copper minerals are in the form of a flotation concentrate containing a high proportion of chalcocite, the temperature of the slurry in first leaching vessel is maintained in the range from 50°C. to 60 C, and the slurry is discharged: from the last leaching vessel at a tempera.ture in the range from 65 C. to 75°C.
12. The method according to Claim 10 wherein the coppvr minerals are in the form of a flotation concentrate containing a substantial proportion of chalcopyrite^ the temperature of the slurry in the first leaching vessel is maintained in the range from -60° to ?0°C.i a.nd the slurry' is discharged from the last leaching vessel at a temperature in the range from 70°C, to 80°C.
13. The method according to any of the preceding claims wherein the solids containing residual undissolved copper separated from the copper-bearing leach solution are mixed with aqueous ammonium sulfate solution containing free ammonia and are subjected to a secondary leaching operation at a pressure not exceeding 10 psig. in a closed releaching vessel at a lower pH and at a higher temperature than that prevailing on the average in the series of leaching vessels during the primary leaching operation while vigorously agitating the slurry in said releaching vessel and while admitting oxygen thereto and vigorously recirculating oxygen-bearing gas "from above the body of slurry in said vessel into said body at a substantial depth below its surface, and thereafter separating the copper-bearing aqueous phase from the copper-depleted .solid phase. 1673/2 1) · 1·\' .
14. The method according to Claim 13 wherein the secondary leaching operation is continued for a period of ti; longer than the dura.tlon of the primary leaching operation .
15. The method according to either of Claims 13 or l wherein the secondary leaching operation is conducted in a single vesi el. lb.
16. The me hod according to either of Claims 13 or l4 wherein the secondary leaching operation is conducted by passing the slurry sequentially through a series of two or more vessels in the first of which the pH of the slurry is higher and its- temperature is lower than in the last vessel in the series.
17. The method according to any of Claims 13 to wherein the temperature .of the slurry during the secondary leach is about 75o~
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23245472A | 1972-03-07 | 1972-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL41673A0 IL41673A0 (en) | 1973-05-31 |
| IL41673A true IL41673A (en) | 1976-11-30 |
Family
ID=22873179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL41673A IL41673A (en) | 1972-03-07 | 1973-03-02 | Recovery of copper from sulfidic minerals |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS5420935B2 (en) |
| AR (1) | AR196917A1 (en) |
| AU (1) | AU476026B2 (en) |
| BE (1) | BE796326A (en) |
| BR (2) | BR7301658D0 (en) |
| CA (1) | CA997567A (en) |
| CS (1) | CS209459B2 (en) |
| DE (1) | DE2311285C3 (en) |
| ES (1) | ES412375A1 (en) |
| FI (1) | FI58352C (en) |
| FR (1) | FR2175095B1 (en) |
| GB (1) | GB1404243A (en) |
| IE (1) | IE37431B1 (en) |
| IL (1) | IL41673A (en) |
| IT (1) | IT980495B (en) |
| NL (1) | NL7303110A (en) |
| NO (1) | NO135942C (en) |
| PH (1) | PH10189A (en) |
| SE (1) | SE399439B (en) |
| TR (1) | TR17595A (en) |
| YU (1) | YU58673A (en) |
| ZA (2) | ZA731445B (en) |
| ZM (1) | ZM3973A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4331635A (en) * | 1972-03-07 | 1982-05-25 | Atlantic Richfield Company | Recovery of copper and/or nickel and/or zinc |
| GB1490813A (en) * | 1975-07-21 | 1977-11-02 | Isc Smelting | Leaching of copper dross |
| FI120187B (en) * | 2003-03-14 | 2009-07-31 | Outotec Oyj | A method for controlling the process |
| WO2016108959A1 (en) | 2014-12-29 | 2016-07-07 | Freeport Minerals Corporation | Systems and methods for monitoring metal recovery systems |
| CN115074534B (en) * | 2022-06-30 | 2024-01-23 | 包头稀土研究院 | Method for recovering valuable elements from sulfide precipitate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE825747C (en) * | 1948-11-06 | 1951-12-20 | Sherritt Gordon Mines Ltd | Process for the extraction of nickel |
| US2576374A (en) * | 1949-10-08 | 1951-11-27 | Whitwell Percy | Learner (driver) distinguishing plate |
| BE514331A (en) * | 1951-09-21 | 1900-01-01 | ||
| US2822263A (en) * | 1954-09-01 | 1958-02-04 | Sherritt Gordon Mines Ltd | Method of extracting copper values from copper bearing mineral sulphides |
| DE1049105B (en) * | 1957-11-23 | 1959-01-22 | Norddeutsche Affinerie | Process for the processing of arsenic and / or antimonidic Huetten intermediate products |
| DE1161432B (en) * | 1962-11-21 | 1964-01-16 | Norddeutsche Affinerie | Process for the processing of arsenic and / or antimonidic Huetten intermediate products |
-
1973
- 1973-03-01 CA CA164,973A patent/CA997567A/en not_active Expired
- 1973-03-01 ZA ZA731445A patent/ZA731445B/en unknown
- 1973-03-01 ZA ZA731446A patent/ZA731446B/en unknown
- 1973-03-02 IL IL41673A patent/IL41673A/en unknown
- 1973-03-02 AU AU52833/73A patent/AU476026B2/en not_active Expired
- 1973-03-05 YU YU58673A patent/YU58673A/en unknown
- 1973-03-05 PH PH14392*A patent/PH10189A/en unknown
- 1973-03-05 NO NO88273A patent/NO135942C/no unknown
- 1973-03-06 CS CS731603A patent/CS209459B2/en unknown
- 1973-03-06 IE IE361/73A patent/IE37431B1/en unknown
- 1973-03-06 NL NL7303110A patent/NL7303110A/xx not_active Application Discontinuation
- 1973-03-06 IT IT6760673A patent/IT980495B/en active
- 1973-03-06 GB GB1068873A patent/GB1404243A/en not_active Expired
- 1973-03-06 FR FR7307986A patent/FR2175095B1/fr not_active Expired
- 1973-03-06 FI FI689/73A patent/FI58352C/en active
- 1973-03-06 SE SE7303107A patent/SE399439B/en unknown
- 1973-03-06 BE BE128413A patent/BE796326A/en unknown
- 1973-03-06 ES ES412375A patent/ES412375A1/en not_active Expired
- 1973-03-07 TR TR1759573A patent/TR17595A/en unknown
- 1973-03-07 ZM ZM3973A patent/ZM3973A1/en unknown
- 1973-03-07 AR AR24694273A patent/AR196917A1/en active
- 1973-03-07 DE DE2311285A patent/DE2311285C3/en not_active Expired
- 1973-03-07 JP JP2625573A patent/JPS5420935B2/ja not_active Expired
- 1973-03-07 BR BR165873A patent/BR7301658D0/en unknown
- 1973-03-07 BR BR166273A patent/BR7301662D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IE37431B1 (en) | 1977-07-20 |
| JPS48102024A (en) | 1973-12-21 |
| AU5283373A (en) | 1974-09-05 |
| YU58673A (en) | 1982-02-28 |
| ES412375A1 (en) | 1976-01-01 |
| CA997567A (en) | 1976-09-28 |
| ZM3973A1 (en) | 1975-05-21 |
| FI58352B (en) | 1980-09-30 |
| ZA731446B (en) | 1974-04-24 |
| NO135942C (en) | 1977-06-29 |
| JPS5420935B2 (en) | 1979-07-26 |
| IE37431L (en) | 1973-09-07 |
| ZA731445B (en) | 1974-07-31 |
| FI58352C (en) | 1981-01-12 |
| CS209459B2 (en) | 1981-12-31 |
| BR7301662D0 (en) | 1974-05-16 |
| IT980495B (en) | 1974-09-30 |
| AU476026B2 (en) | 1976-09-09 |
| NO135942B (en) | 1977-03-21 |
| DE2311285B2 (en) | 1981-07-09 |
| BR7301658D0 (en) | 1974-05-16 |
| FR2175095A1 (en) | 1973-10-19 |
| PH10189A (en) | 1976-09-23 |
| SE399439B (en) | 1978-02-13 |
| TR17595A (en) | 1975-07-23 |
| DE2311285C3 (en) | 1982-03-04 |
| GB1404243A (en) | 1975-08-28 |
| NL7303110A (en) | 1973-09-11 |
| IL41673A0 (en) | 1973-05-31 |
| AR196917A1 (en) | 1974-02-28 |
| DE2311285A1 (en) | 1973-09-13 |
| BE796326A (en) | 1973-09-06 |
| FR2175095B1 (en) | 1977-08-12 |
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