GB449935A - An improved process for making sodium sulphide from sodium sulphate by reduction with hydrogen or other reducing gases - Google Patents
An improved process for making sodium sulphide from sodium sulphate by reduction with hydrogen or other reducing gasesInfo
- Publication number
- GB449935A GB449935A GB15429/35A GB1542935A GB449935A GB 449935 A GB449935 A GB 449935A GB 15429/35 A GB15429/35 A GB 15429/35A GB 1542935 A GB1542935 A GB 1542935A GB 449935 A GB449935 A GB 449935A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- reducing gases
- reduction
- improved process
- sodium 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/22—Alkali metal sulfides or polysulfides
- C01B17/24—Preparation by reduction
- C01B17/28—Preparation by reduction with reducing gases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
Abstract
Anhydrous sodium sulphide is obtained from calcined sodium sulphate by reduction with hydrogen or other reducing gases, heated, say to 650 DEG C., in a furnace having one or more rotating hearths arranged on a vertical axis. The charge is preferably moved in counter-current to the reducing gases, and is rabbled by a water-cooled worm. The furnace is heat-insulated and sealed against ingress of air. The issuing gases are scrubbed with sulphuric acid to remove water vapour, and the remaining hydrogen re-used after being reheated. Specifications 336,251, [Class 1 (iii)], and 417,670 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT449935X | 1934-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB449935A true GB449935A (en) | 1936-07-07 |
Family
ID=3674383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15429/35A Expired GB449935A (en) | 1934-05-25 | 1935-05-27 | An improved process for making sodium sulphide from sodium sulphate by reduction with hydrogen or other reducing gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB449935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589775A (en) * | 2019-09-25 | 2019-12-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing sodium sulfide by reducing industrial sodium sulfate in molten state |
-
1935
- 1935-05-27 GB GB15429/35A patent/GB449935A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589775A (en) * | 2019-09-25 | 2019-12-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing sodium sulfide by reducing industrial sodium sulfate in molten state |
| CN110589775B (en) * | 2019-09-25 | 2021-03-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing sodium sulfide by reducing industrial sodium sulfate in molten state |
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