GB888963A - Improvements in or relating to the recovery of cadmium - Google Patents
Improvements in or relating to the recovery of cadmiumInfo
- Publication number
- GB888963A GB888963A GB3807058A GB3807058A GB888963A GB 888963 A GB888963 A GB 888963A GB 3807058 A GB3807058 A GB 3807058A GB 3807058 A GB3807058 A GB 3807058A GB 888963 A GB888963 A GB 888963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cadmium
- sulphur dioxide
- lead
- sintering
- atmosphere
- 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
- C01G11/00—Compounds of cadmium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Cadmium-containing materials in the form of by-products from the sintering of ores containing zinc and lead are sulphated in an atmosphere of sulphur dioxide and air. Suitable starting materials are the lead- and cadmium-containing accretions collecting on the bars of zinc ore sintering furnaces, and the cadmium-containing lead sulphate sludge deposited in electrostatic precipitators from the gas resulting from such sintering. Such cadmium-containing material is reacted with sulphur dioxide in a rotary kiln, preferably in the presence of added ferric oxide. Temperatures of 550 DEG -650 DEG C. are employed and the atmosphere contains 2-6% sulphur dioxide. Comparative examples illustrate roasting at up to 800 DEG C. using sulphur dioxide concentrations up to 10%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807058A GB888963A (en) | 1958-11-26 | 1958-11-26 | Improvements in or relating to the recovery of cadmium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807058A GB888963A (en) | 1958-11-26 | 1958-11-26 | Improvements in or relating to the recovery of cadmium |
Publications (1)
Publication Number | Publication Date |
---|---|
GB888963A true GB888963A (en) | 1962-02-07 |
Family
ID=10400956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3807058A Expired GB888963A (en) | 1958-11-26 | 1958-11-26 | Improvements in or relating to the recovery of cadmium |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB888963A (en) |
-
1958
- 1958-11-26 GB GB3807058A patent/GB888963A/en not_active Expired
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