GB858217A - Purification of magnesium salts - Google Patents
Purification of magnesium saltsInfo
- Publication number
- GB858217A GB858217A GB734/58A GB73458A GB858217A GB 858217 A GB858217 A GB 858217A GB 734/58 A GB734/58 A GB 734/58A GB 73458 A GB73458 A GB 73458A GB 858217 A GB858217 A GB 858217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- solution
- magnesium
- barium carbonate
- added
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Ferric iron is removed from an aqueous solution of a magnesium salt, e.g. magnesium acetate by mixing a finely divided solid barium carbonate with said solution and subsequently separating the solution from the solid phase which contains the ferric iron. If ferrous iron is present, a water-soluble oxidising agent may be added to the solution before or after the barium carbonate. Oxidising agents referred to are hydrogen peroxide, sodium peroxide, sodium perborate, sodium hypochlorite, sodium hypobromite, sodium hypoiodite and sodium perchlorate. After addition of the barium carbonate and thorough mixing, the mixture is allowed to stand, and a filter aid may be added to facilitate separation of the solid. The magnesium may then, if desired, be separated from the solution by precipitation with caustic soda or soda ash, to form respectively magnesium hydroxide or carbonate. These precipitates may then if desired be reacted with thioglycollic acid as described in Specification 858,216 to form magnesium thioglycollate in the form of a clear light-coloured and stable solution.ALSO:Ferric iron is removed from an aqueous solution of a magnesium salt by mixing a finely divided solid barium carbonate with said solution and subsequently separating the solution from the solid phase which contains the ferric iron. If ferrous iron is present, a water-soluble oxidising agent may be added to the solution before or after the barium carbonate. Salts referred to are the chloride, bromide, iodide, nitrate and acetate; oxidising agents are hydrogen peroxide, sodium peroxide, sodium perborate, sodium hypochlorite, sodium hypobromite, sodium hypoiodite and sodium perchlorate. After addition of the barium carbonate and thorough mixing, the mixture is allowed to stand, and a filter aid may be added to facilitate separation of the solid. The magnesium may then, if desired, be separated from the solution by precipitation with caustic soda or soda ash, to form respectively magnesium hydroxide or carbonate. Specification 858,216 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US858217XA | 1957-03-04 | 1957-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB858217A true GB858217A (en) | 1961-01-11 |
Family
ID=22194171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB734/58A Expired GB858217A (en) | 1957-03-04 | 1958-01-08 | Purification of magnesium salts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB858217A (en) |
-
1958
- 1958-01-08 GB GB734/58A patent/GB858217A/en not_active Expired
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