GB543887A - Process for the purification of manganous sulphate solutions - Google Patents
Process for the purification of manganous sulphate solutionsInfo
- Publication number
- GB543887A GB543887A GB6100/40A GB610040A GB543887A GB 543887 A GB543887 A GB 543887A GB 6100/40 A GB6100/40 A GB 6100/40A GB 610040 A GB610040 A GB 610040A GB 543887 A GB543887 A GB 543887A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- manganous
- precipitated
- hydrogen sulphide
- manganous sulphate
- 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
- C01G45/00—Compounds of manganese
- C01G45/10—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
543,887. Manganous sulphate. CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. April 4, 1940, No. 6100. Convention date, April 18, 1939. Drawings to Specification. [Class 1 (iii)] [Also in Group XXXVI] In the purification of solutions of manganous sulphate a stream of hydrogen sulphide is passed through the solution to cause complete precipitation of metallic impurities as sulphides, the solution at the same time being in contact with excess of a solid reagent (e.g. calcium carbonate) which will neutralize the sulphuric acid produced and maintain the pH of the solution at a point such that the precipitated impurities are not dissolved but no manganous sulphide is precipitated, the precipitate being separated and the excess hydrogen sulphide removed from the solution. The solution may first be treated by acidification and oxidation to convert iron into the ferric state and then precipitating it as ferric hydroxide. Sulphides of cobalt, nickel and cadmium are among the compounds precipitated by the hydrogen sulphide treatment. The solution of manganous sulphate finally obtained is employed as electrotype for the deposit of metallic manganese.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US543887XA | 1939-04-18 | 1939-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB543887A true GB543887A (en) | 1942-03-18 |
Family
ID=21990714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6100/40A Expired GB543887A (en) | 1939-04-18 | 1940-04-04 | Process for the purification of manganous sulphate solutions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB543887A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2476284A (en) * | 1945-01-01 | 1949-07-19 | Ruth E Churchward | Cobalt solution purification |
| JP2013518013A (en) * | 2010-03-31 | 2013-05-20 | 貴州紅星発展股▲ふん▼有限公司 | Method for producing manganese sulfate monohydrate |
| CN112062159A (en) * | 2020-08-04 | 2020-12-11 | 福建省连城锰矿有限责任公司 | Process for preparing electronic-grade manganese sulfate by potassium-sodium-calcium-magnesium-free method |
-
1940
- 1940-04-04 GB GB6100/40A patent/GB543887A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2476284A (en) * | 1945-01-01 | 1949-07-19 | Ruth E Churchward | Cobalt solution purification |
| JP2013518013A (en) * | 2010-03-31 | 2013-05-20 | 貴州紅星発展股▲ふん▼有限公司 | Method for producing manganese sulfate monohydrate |
| CN112062159A (en) * | 2020-08-04 | 2020-12-11 | 福建省连城锰矿有限责任公司 | Process for preparing electronic-grade manganese sulfate by potassium-sodium-calcium-magnesium-free method |
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