GB287401A - Improvements in the preparation of vanadic acid - Google Patents
Improvements in the preparation of vanadic acidInfo
- Publication number
- GB287401A GB287401A GB2423627A GB2423627A GB287401A GB 287401 A GB287401 A GB 287401A GB 2423627 A GB2423627 A GB 2423627A GB 2423627 A GB2423627 A GB 2423627A GB 287401 A GB287401 A GB 287401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- impurities
- ammonia
- ammonium
- oxidation
- 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
- C01G31/00—Compounds of vanadium
- C01G31/02—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
287,401. Fairweather, H. G. C., (Selden Co.). Sept. 14, 1927. Ammonium vanadate.-A crude vanadate solution is subjected to oxudation, as with a halogen or a peroxide, to render impurities readily oomovable on subsequent treatment with, for instance, ammonia. The oxidation may take place in alkaline solution, or partly in alkaline and partly in acid solution. Prior to the oxidation step, impurities forming insoluble carbonates may be removed by addition of a soluble carbonate, and barium compounds may be removed by precipitation as sulphate. When arsenic or phosphorus is present, the oxidised alkaline solution, after removal of deposited impurities, is acadified, a magnesium compound is added, oxidation is completed and neutralisation effected with ammonia, the precipitated impurities, including magnesium ammonium phosphate or arsenate, being removed. The purified solution is treated with a solution of ammonium chloride previously freed from iron by treatment with sulphuretted hydrogen in presence of ammonia, and the precipitated ammonium vanadata is washed free from chlorides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2423627A GB287401A (en) | 1927-09-14 | 1927-09-14 | Improvements in the preparation of vanadic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2423627A GB287401A (en) | 1927-09-14 | 1927-09-14 | Improvements in the preparation of vanadic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB287401A true GB287401A (en) | 1928-03-22 |
Family
ID=10208552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2423627A Expired GB287401A (en) | 1927-09-14 | 1927-09-14 | Improvements in the preparation of vanadic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB287401A (en) |
-
1927
- 1927-09-14 GB GB2423627A patent/GB287401A/en not_active Expired
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