GB701556A - Improvements in autogenous roasting of sulfide ores - Google Patents
Improvements in autogenous roasting of sulfide oresInfo
- Publication number
- GB701556A GB701556A GB27678/51A GB2767851A GB701556A GB 701556 A GB701556 A GB 701556A GB 27678/51 A GB27678/51 A GB 27678/51A GB 2767851 A GB2767851 A GB 2767851A GB 701556 A GB701556 A GB 701556A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pellets
- roasting
- water
- air
- roasted
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
<PICT:0701556/III/1> Sulphide ore concentrates are roasted, as a porous body 7 of mobile pellets, in a rotary kiln 5, the roasting air being delivered downwardly into the body of the pellets through a plurality of conduits 12 connected to an air line 11. The latter may be provided with a jacket through which circulates cooling air, water, &c. The kiln movement may be continuous or reciprocatory. The concentrate, e.g. iron, zinc or copper sulphide, may be pelleted by the addition of water and a sulphate which may be obtained from the roasted material removed from the roaster gas. Bentonite or sulphite liquor may also be added. Pellets up to 1/2 inch diameter may be used; small particles should be absent. A roasting temperature up to 1000 DEG -1100 DEG C. is specified. Any cadmium, lead, arsenic, silver or gold present is volatilized. Specifications 238,928, [Class 51 (ii)], and 701,555 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US701556XA | 1950-12-21 | 1950-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB701556A true GB701556A (en) | 1953-12-30 |
Family
ID=22093487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27678/51A Expired GB701556A (en) | 1950-12-21 | 1951-11-26 | Improvements in autogenous roasting of sulfide ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB701556A (en) |
-
1951
- 1951-11-26 GB GB27678/51A patent/GB701556A/en not_active Expired
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