GB380653A - Improvements in the treatment of argentiferous manganese ores - Google Patents
Improvements in the treatment of argentiferous manganese oresInfo
- Publication number
- GB380653A GB380653A GB3288331A GB3288331A GB380653A GB 380653 A GB380653 A GB 380653A GB 3288331 A GB3288331 A GB 3288331A GB 3288331 A GB3288331 A GB 3288331A GB 380653 A GB380653 A GB 380653A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- thiosulphate
- solution
- sulphur dioxide
- manganese
- 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
- C22B11/04—Obtaining noble metals by wet processes
-
- 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
- C22B47/00—Obtaining manganese
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
In the extraction of silver and manganese from refractory ores containing them, a suspension of the ground ore in water is treated with sulphur dioxide to bring the manganese into solution as sulphate and dithionate, and the residue is then treated with a thiosulphate solution to extract the silver, and copper if present, the silver with or without copper being finally precipitated for instance as sulphide. The solution containing manganese is evaporated to dryness and calcined to convert the dithionate to sulphate, the sulphur dioxide evolved being returned to the first step of the process. Calcium thiosulphate solution is preferably used to extract the silver, which is then precipitated by calcium sulphide containing thiosulphate obtained by boiling a suspension of lime in water, so that after precipitation the concentration of thiosulphate in the remaining solution, which may be treated with sulphur dioxide to remove residual calcium sulphide before re-use, is maintained. The silver precipitate may be roasted to provide sulphur dioxide for use in the first step of the process. In commencing operations, sodium thiosulphate may be used to extract the silver, whilst according to the Provisional Specification it may be used continuously and its concentration be maintained by using, to precipitate the silver, sodium sulphide containing thiosulphate obtained by boiling soda ash with sulphur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3288331A GB380653A (en) | 1931-11-27 | 1931-11-27 | Improvements in the treatment of argentiferous manganese ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3288331A GB380653A (en) | 1931-11-27 | 1931-11-27 | Improvements in the treatment of argentiferous manganese ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB380653A true GB380653A (en) | 1932-09-22 |
Family
ID=10345452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3288331A Expired GB380653A (en) | 1931-11-27 | 1931-11-27 | Improvements in the treatment of argentiferous manganese ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB380653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150275329A1 (en) * | 2013-12-18 | 2015-10-01 | Pedro Castillo Castillo | Pre-treatment for conventional cyanidation for silver recovering from manganese- argentiferous ores containing occluded silver |
-
1931
- 1931-11-27 GB GB3288331A patent/GB380653A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150275329A1 (en) * | 2013-12-18 | 2015-10-01 | Pedro Castillo Castillo | Pre-treatment for conventional cyanidation for silver recovering from manganese- argentiferous ores containing occluded silver |
| US9410224B2 (en) * | 2013-12-18 | 2016-08-09 | Centro De Investigacion En Materiales Avanzados, S.C. | Pre-treatment for conventional cyanidation for silver recovering from manganese-argentiferous ores containing occluded silver |
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