GB605448A - Improvements in or relating to electrodeposition of manganese - Google Patents
Improvements in or relating to electrodeposition of manganeseInfo
- Publication number
- GB605448A GB605448A GB23846/44A GB2384644A GB605448A GB 605448 A GB605448 A GB 605448A GB 23846/44 A GB23846/44 A GB 23846/44A GB 2384644 A GB2384644 A GB 2384644A GB 605448 A GB605448 A GB 605448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- added
- manganese
- aluminium
- gms
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/10—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of chromium or manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
A solution of manganese sulphate and ammonium sulphate for use as electrolyte in the electrodeposition of manganese is treated at pH about 5.5-7.5 with aluminium sulphate in the proportion of not less than 0.4 lbs., calculated as anhydrous aluminium sulphate to each 100,000 lbs. of the solution in order to precipitate silica, which is then removed from the solution. A preferable range of proportions is 10-160 parts by weight of anhydrous aluminium sulphate to 100,000 parts by weight of solution. The aluminium sulphate may be added to pH 5.5-6.5, the pH then being raised to 7.2-7.5; or part of the aluminium sulphate may be added at pH 5.5-6.5, the remainder being added at pH 6.5-7.5. In an example anolyte containing 10-18 gms. per litre of manganese as sulphate and 120-180 gms. per litre of ammonium sulphate, pH 1-2, withdrawn from a diaphragm cell and digested with manganese ore to a manganese concentration of 20-50 gms. per litre. The pH is adjusted to 5.5-6.5 and iron, arsenic and antimony precipitated by air or other oxidizing agent. Aluminium sulphate is then added, the precipitate formed being allowed to remain in suspension. The pH is then raised to 7.2-7.5 and further aluminium sulphate added. Ammonium sulphate is then added, precipitating cobalt, nickel, &c., together with aluminium hydroxide. The purified liquid which should contain not more than 0.001 gms. per litre silica is returned for use as catholyte.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US605448XA | 1944-02-01 | 1944-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB605448A true GB605448A (en) | 1948-07-23 |
Family
ID=22030167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23846/44A Expired GB605448A (en) | 1944-02-01 | 1944-11-29 | Improvements in or relating to electrodeposition of manganese |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB605448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2820749A (en) * | 1955-05-23 | 1958-01-21 | Union Carbide Corp | Method of removing calcium from solutions |
-
1944
- 1944-11-29 GB GB23846/44A patent/GB605448A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2820749A (en) * | 1955-05-23 | 1958-01-21 | Union Carbide Corp | Method of removing calcium from solutions |
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