GB456236A - Ore extraction - Google Patents
Ore extractionInfo
- Publication number
- GB456236A GB456236A GB2608535A GB2608535A GB456236A GB 456236 A GB456236 A GB 456236A GB 2608535 A GB2608535 A GB 2608535A GB 2608535 A GB2608535 A GB 2608535A GB 456236 A GB456236 A GB 456236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- precious metals
- polysulphides
- treated
- precious
- ore 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
- C22B11/00—Obtaining noble metals
-
- 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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
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
Precious metal ores or concentrates in which the precious metals are associated with arsenic or sulphur or iron in the form of arsenopyrite, pyrrhotite, marcasite, magnetite &c., are mixed with an alkali carbonate or nitrate, and heated without the addition of carbon under non-roasting conditions at 950--1250 DEG F. for a sufficient time to form polysulphides and sulph-arsenates. The mass is quenched with water, when the polysulphides and sulpharsenates react with the precious metals to form soluble salts thereof. The solution formed is removed and the precious metals recovered by precipitation, and the residual ore pulp is treated with cyanide or similar extracting solution, preferably after being treated with lime and filtered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2608535A GB456236A (en) | 1935-09-20 | 1935-09-20 | Ore extraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2608535A GB456236A (en) | 1935-09-20 | 1935-09-20 | Ore extraction |
Publications (1)
Publication Number | Publication Date |
---|---|
GB456236A true GB456236A (en) | 1936-11-05 |
Family
ID=10238107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2608535A Expired GB456236A (en) | 1935-09-20 | 1935-09-20 | Ore extraction |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB456236A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2488284A1 (en) * | 1980-08-06 | 1982-02-12 | Outokumpu Oy | PROCESS FOR THE PREPARATION OF GOLD AND SILVER FROM COMPOUND ORES AND CONCENTRATES OF SULFIDES |
-
1935
- 1935-09-20 GB GB2608535A patent/GB456236A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2488284A1 (en) * | 1980-08-06 | 1982-02-12 | Outokumpu Oy | PROCESS FOR THE PREPARATION OF GOLD AND SILVER FROM COMPOUND ORES AND CONCENTRATES OF SULFIDES |
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