GB430945A - Improvements in zinc sulphide and processes of making the same - Google Patents
Improvements in zinc sulphide and processes of making the sameInfo
- Publication number
- GB430945A GB430945A GB22168/34A GB2216834A GB430945A GB 430945 A GB430945 A GB 430945A GB 22168/34 A GB22168/34 A GB 22168/34A GB 2216834 A GB2216834 A GB 2216834A GB 430945 A GB430945 A GB 430945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- thiosulphate
- sulphide
- base
- reaction
- 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
- C01G9/00—Compounds of zinc
- C01G9/08—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
430,945. Zinc sulphide. AMERICAN ZINC, LEAD, & SMELTING CO., 943, Paul Brown Building, St. Louis, Missouri, U.S.A. July 30, 1934, No. 22168. Convention date, Sept. 6, 1933. [Class 1 (iii)] Zinc sulphide is obtained by treating a zinc sulphate solution with thiosulphate, and adding a base such as sodium carbonate at a rate equivalent to the rate of reaction between the zinc salt and thiosulphate, whereby deposition of sulphur is avoided. Reaction is preferably effected at elevated temperatures with agitation using concentrated solutions of zinc sulphate and thiosulphate, and the thiosulphate solution may contain from 10- 100 mgms., of sulphide ions per litre and up to 100 mgms. of sodium sulphite per litre. The base added may contain alkali sulphide in small amount, and during the reaction equivalent quantities of zinc sulphate and thiosulphate solutions may be added at intervals. The addition of the base may be regulated by suspending electrodes of zinc and antimony in the solution and adding the base at such a rate as to maintain a potential of 600-800 mv. between them. The zinc sulphide obtained is washed and dried and may be calcined at 950-1400‹ F., if desired in the presence of sulphur.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US430945XA | 1933-09-06 | 1933-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB430945A true GB430945A (en) | 1935-06-27 |
Family
ID=21925467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22168/34A Expired GB430945A (en) | 1933-09-06 | 1934-07-30 | Improvements in zinc sulphide and processes of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB430945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104883A (en) * | 2021-05-06 | 2021-07-13 | 竹山县秦巴钡盐有限公司 | Preparation method of pigment-grade zinc sulfide |
-
1934
- 1934-07-30 GB GB22168/34A patent/GB430945A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104883A (en) * | 2021-05-06 | 2021-07-13 | 竹山县秦巴钡盐有限公司 | Preparation method of pigment-grade zinc sulfide |
| CN113104883B (en) * | 2021-05-06 | 2022-06-17 | 竹山县秦巴钡盐有限公司 | Preparation method of pigment-grade zinc sulfide |
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