GB190628581A - Improved Manufacture of Sodium Alum, Potassium Alum, or Ammonium Alum Free from Iron and in Small Crystals. - Google Patents
Improved Manufacture of Sodium Alum, Potassium Alum, or Ammonium Alum Free from Iron and in Small Crystals.Info
- Publication number
- GB190628581A GB190628581A GB190628581DA GB190628581A GB 190628581 A GB190628581 A GB 190628581A GB 190628581D A GB190628581D A GB 190628581DA GB 190628581 A GB190628581 A GB 190628581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alum
- sodium
- sulphate
- potassium
- alkali
- 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
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
28,581. Strohbach, E. Dec. 14. Sodium, potassium, or ammonium alum is formed by treating a solution of aluminium sulphate, which may contain iron and is preferably acidified with sulphuric acid, with excess of the alkali sulphate at 25-50‹ C. The alum meal is separated by centrifugal action and dried below 50‹ C. Sodium bisulphate may replace sodium sulphate if the aluminium sulphate solution is concentrated. Instead of an alkali sulphate, an alkali double sulphate may be used. Sodium alum may also be obtained by adding aluminium sulphate solution to a strong solution of sodium sulphate acidulated with sulphuric acid, the alkali salt being kept in excess. In making potassium or ammonium alum, the aluminium sulphate may be in excess. The sodium alum may be further purified by dissolving in water and concentrating, then rapidly cooling, adding crystals of sodium alum, and agitating, small crystals being produced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190628581T | 1906-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190628581A true GB190628581A (en) | 1907-10-03 |
Family
ID=32632196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190628581D Expired GB190628581A (en) | 1906-12-14 | 1906-12-14 | Improved Manufacture of Sodium Alum, Potassium Alum, or Ammonium Alum Free from Iron and in Small Crystals. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190628581A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113120923A (en) * | 2019-12-31 | 2021-07-16 | 中国科学院过程工程研究所 | Method for separating and recovering iron, sodium and ammonium from mixed solution and application |
-
1906
- 1906-12-14 GB GB190628581D patent/GB190628581A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113120923A (en) * | 2019-12-31 | 2021-07-16 | 中国科学院过程工程研究所 | Method for separating and recovering iron, sodium and ammonium from mixed solution and application |
CN113120923B (en) * | 2019-12-31 | 2022-11-29 | 中国科学院过程工程研究所 | Method for separating and recovering iron, sodium and ammonium from mixed solution and application |
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