GB1416761A - Extraction of metal values from sulphidic materials - Google Patents
Extraction of metal values from sulphidic materialsInfo
- Publication number
- GB1416761A GB1416761A GB844873A GB844873A GB1416761A GB 1416761 A GB1416761 A GB 1416761A GB 844873 A GB844873 A GB 844873A GB 844873 A GB844873 A GB 844873A GB 1416761 A GB1416761 A GB 1416761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- metal values
- values
- sulphidic
- extraction
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
-
- 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)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Laminated Bodies (AREA)
- Wire Processing (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
1416761 Extraction of metal values from sulphidic materials INTERNATIONAL NICKEL CO OF CANADA Ltd 21 Feb 1973 [22 Feb 1972] 8448/73 Heading C1A Finely divided sulphidic mineral materials, e.g. ores and concentrates, containing one or more non-ferrous metal values are reacted at a temperature not exceeding 110‹ C. with an aqueous acidic solution containing hexavalent chromium, e.g. sulphuric acid admixed with a chromate or dichromate of sodium, potassium, or ammonium or chromic acid, in order to both oxidize most of the sulphide sulphur to elemental sulphur and sulphate and to dissolve the metal value or values. The resulting slurry is then heated in an autoclave to a temperature above the melting point of sulphur to melt the sulphur, the reaction mixture is cooled to form pellets containing the sulphur, unreacted sulphides and any precious metals present, and the pellets are then separated from the solution containing the dissolved metal values. Metals recovered by the process include Ni, Co, Cu, Pb and Zn. If Fe is present, it may be precipitated from the leach liquor containing ferric sulphate as ferric hydroxide by raising the pH to above 2. The spent aqueous acidic solution may be regenerated electrolytically.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA135,312A CA979663A (en) | 1972-02-22 | 1972-02-22 | Oxidation leaching of sulfide ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1416761A true GB1416761A (en) | 1975-12-03 |
Family
ID=4092415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB844873A Expired GB1416761A (en) | 1972-02-22 | 1973-02-21 | Extraction of metal values from sulphidic materials |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5239362B2 (en) |
| AU (1) | AU450434B2 (en) |
| BE (1) | BE795693A (en) |
| BR (1) | BR7301263D0 (en) |
| CA (1) | CA979663A (en) |
| DE (1) | DE2308792C3 (en) |
| FR (1) | FR2173175B1 (en) |
| GB (1) | GB1416761A (en) |
| IT (1) | IT977457B (en) |
| NL (1) | NL7302512A (en) |
| NO (1) | NO135282C (en) |
| PH (1) | PH10213A (en) |
| ZA (1) | ZA731144B (en) |
| ZM (1) | ZM2573A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3159815A (en) * | 1961-11-29 | 1964-12-01 | Ibm | Digitalization system for multi-track optical character sensing |
| US3415950A (en) * | 1965-03-29 | 1968-12-10 | Ibm | Video quantizing system |
| US3568151A (en) * | 1966-03-23 | 1971-03-02 | Hitachi Ltd | Photoelectrical conversion system for pattern-recognizing apparatus and the like |
-
1972
- 1972-02-22 CA CA135,312A patent/CA979663A/en not_active Expired
-
1973
- 1973-02-19 ZA ZA731144A patent/ZA731144B/en unknown
- 1973-02-21 BR BR731263A patent/BR7301263D0/en unknown
- 1973-02-21 AU AU52442/73A patent/AU450434B2/en not_active Expired
- 1973-02-21 BE BE795693D patent/BE795693A/en unknown
- 1973-02-21 NO NO711/73A patent/NO135282C/no unknown
- 1973-02-21 GB GB844873A patent/GB1416761A/en not_active Expired
- 1973-02-22 FR FR7306288A patent/FR2173175B1/fr not_active Expired
- 1973-02-22 PH PH14363*A patent/PH10213A/en unknown
- 1973-02-22 JP JP48021692A patent/JPS5239362B2/ja not_active Expired
- 1973-02-22 IT IT48393/73A patent/IT977457B/en active
- 1973-02-22 NL NL7302512A patent/NL7302512A/xx not_active Application Discontinuation
- 1973-02-22 DE DE2308792A patent/DE2308792C3/en not_active Expired
- 1973-02-27 ZM ZM25/73*UA patent/ZM2573A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7301263D0 (en) | 1974-05-16 |
| AU5244273A (en) | 1974-07-11 |
| FR2173175B1 (en) | 1976-04-30 |
| FR2173175A1 (en) | 1973-10-05 |
| IT977457B (en) | 1974-09-10 |
| JPS5239362B2 (en) | 1977-10-05 |
| NL7302512A (en) | 1973-08-24 |
| PH10213A (en) | 1976-09-29 |
| DE2308792C3 (en) | 1975-03-06 |
| CA979663A (en) | 1975-12-16 |
| NO135282B (en) | 1976-12-06 |
| JPS4894602A (en) | 1973-12-05 |
| ZM2573A1 (en) | 1974-06-21 |
| ZA731144B (en) | 1973-11-28 |
| BE795693A (en) | 1973-08-21 |
| DE2308792A1 (en) | 1973-09-13 |
| NO135282C (en) | 1977-03-16 |
| DE2308792B2 (en) | 1974-07-11 |
| AU450434B2 (en) | 1974-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |