GB775949A - Process of producing metallic zinc from zinc sulphides - Google Patents
Process of producing metallic zinc from zinc sulphidesInfo
- Publication number
- GB775949A GB775949A GB20923/55A GB2092355A GB775949A GB 775949 A GB775949 A GB 775949A GB 20923/55 A GB20923/55 A GB 20923/55A GB 2092355 A GB2092355 A GB 2092355A GB 775949 A GB775949 A GB 775949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- flux
- sulphide
- furnace
- mixture
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/04—Obtaining zinc by distilling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Zinc is produced by reacting zinc sulphide with zinc oxide, the reactants being in a state of molten flux, at at least 1500 DEG C. and under a pressure not substantially less than atmospheric. Preferably the mixture is ground to a fineness of at least 4900/cm2 mesh and compressed into tablets &c. and charged into a furnace preheated to at least 1500 DEG . the charging rate being such as not to reduce the temperature below 1400 DEG C. A flux of e.g. alumina and aluminium sulphide or a molten mixture of the raw materials themselves, may be initially in the furnace. The temperature is then raised to 1500-1600 DEG C., and then metallic zinc recovered by suddenly cooling with the admission of large volumes of cold inert gases, e.g. hydrogen, nitrogen, methane. After separating the zinc and SO2 the cooled residual gas may be reemployed as coolant.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE775949X | 1954-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB775949A true GB775949A (en) | 1957-05-29 |
Family
ID=6686404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20923/55A Expired GB775949A (en) | 1954-08-05 | 1955-07-19 | Process of producing metallic zinc from zinc sulphides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB775949A (en) |
-
1955
- 1955-07-19 GB GB20923/55A patent/GB775949A/en not_active Expired
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