GB640352A - Improvements in or relating to a method of recovering tin and the product resulting therefrom - Google Patents
Improvements in or relating to a method of recovering tin and the product resulting therefromInfo
- Publication number
- GB640352A GB640352A GB3235746A GB3235746A GB640352A GB 640352 A GB640352 A GB 640352A GB 3235746 A GB3235746 A GB 3235746A GB 3235746 A GB3235746 A GB 3235746A GB 640352 A GB640352 A GB 640352A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tin
- alkali metal
- ore
- stannate
- solution
- 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
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G19/00—Compounds of tin
-
- 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
- C22B25/00—Obtaining tin
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Tin is extracted from tin ores, wastes, stannic oxide, &c. by reducing the ore &c. to convert the tin into a form capable of reacting with an alkali metal hydroxide solution, and thereupon treating with the solution at a temperature of 75 DEG C. to the boiling-point to form sodium, potassium or lithium stannate without simultaneously dissolving substantial amounts of impurities. Reduction of the ore may be effected with carbon, coal, coke, lamp-black, carbon monoxide, natural gas, hydrogen, &c. at say, 760-1090 DEG C., avoiding appreciable fusion. High grade ores containing, say, 35-40 per cent tin may be first mixed with inert material such as the spent residues of the later leaching operation. If excessive sulphur is present, this may be partially or wholly removed by a previous roast. The reduced ore may be cooled in a non-oxidizing atmosphere. One mol. oxidizing agent, e.g. an alkali metal nitrate, nitrite, peroxide, hypochlorite, hydrogen peroxide, &c. may be used with 5-7 mols. alkali metal hydroxide used for the treatment of the ore, which may be such as to produce a liquid extract directly; alternatively a solid mass comprising alkali metal stannate crystals, to be subsequently extracted, may be produced. Tin may be recovered from the crystallized stannate by electrolysis, or from the oxide precipitated from a solution of the stannate. Specification 324,685 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3235746A GB640352A (en) | 1946-10-31 | 1946-10-31 | Improvements in or relating to a method of recovering tin and the product resulting therefrom |
MY5300080A MY5300080A (en) | 1946-10-31 | 1953-12-30 | Improvements in or relating to a method of recovering tin and the product resulting therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3235746A GB640352A (en) | 1946-10-31 | 1946-10-31 | Improvements in or relating to a method of recovering tin and the product resulting therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB640352A true GB640352A (en) | 1950-07-19 |
Family
ID=10337372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3235746A Expired GB640352A (en) | 1946-10-31 | 1946-10-31 | Improvements in or relating to a method of recovering tin and the product resulting therefrom |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB640352A (en) |
MY (1) | MY5300080A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542507A (en) * | 1967-12-01 | 1970-11-24 | Gen Mills Inc | Recovery of tin from tin bearing solutions |
GB2371810A (en) * | 2000-12-21 | 2002-08-07 | Accentus Plc | Electrochemical processing |
CN111690808A (en) * | 2020-06-29 | 2020-09-22 | 罗文波 | Method for preparing sodium stannate by reducing, roasting and oxygen pressure alkaline leaching of tin concentrate |
-
1946
- 1946-10-31 GB GB3235746A patent/GB640352A/en not_active Expired
-
1953
- 1953-12-30 MY MY5300080A patent/MY5300080A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542507A (en) * | 1967-12-01 | 1970-11-24 | Gen Mills Inc | Recovery of tin from tin bearing solutions |
GB2371810A (en) * | 2000-12-21 | 2002-08-07 | Accentus Plc | Electrochemical processing |
US6726828B2 (en) | 2000-12-21 | 2004-04-27 | Accentus Plc | Electrochemical processing |
GB2371810B (en) * | 2000-12-21 | 2004-09-22 | Accentus Plc | Electrochemical processing |
CN111690808A (en) * | 2020-06-29 | 2020-09-22 | 罗文波 | Method for preparing sodium stannate by reducing, roasting and oxygen pressure alkaline leaching of tin concentrate |
Also Published As
Publication number | Publication date |
---|---|
MY5300080A (en) | 1953-12-31 |
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