GB265162A - Improvements in or relating to processes for working up complex ores and metallurgical products - Google Patents
Improvements in or relating to processes for working up complex ores and metallurgical productsInfo
- Publication number
- GB265162A GB265162A GB15327A GB15327A GB265162A GB 265162 A GB265162 A GB 265162A GB 15327 A GB15327 A GB 15327A GB 15327 A GB15327 A GB 15327A GB 265162 A GB265162 A GB 265162A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphides
- furnace
- charge
- zinc
- residue
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
265,162. Krupp Grusonwerk Akt.- Ges., F. Jan. 26, 1926, [Convention date]. Arsenic, antimony, cadmium, lead, mercury, tin, and zinc sulphides and oxides; copper sulphide.-Complex ores and metallurgical products, with the addition of reducing agents. and if necessary, of sulphur, are treated for separation of their metallic constituents by partial distillation or sublimation of their sulphides in a directly heated rotary tube furnace, an oxygen-free atmosphere being maintained in and around the charge. Sand, limestone, &c. may be added to the charge if desired. For example, a complex zinc ore is treated to distil the sulphides of lead, tin, cadmium, arsenic, antimony, and mercury, and to leave a residue rich in zinc and copper sulphides. The distilled sulphides may be condensed as such, or may be converted into oxides, either outside the furnace, or bv admitting air above the charge in the furnace. The residue, whilst still hot, may be roasted, or be mixed with reducing agents and subjected to a distillation process to obtain zinc oxide. The distillation of the sulphides may be effected in one half of the furnace, and the residue be roasted during its passage through the second half of the furnace in which latter an oxidizing atmosphere is maintained. The subjectmatter of Specification 256,634 is disclaimed. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter :-Electrically or indirectly heated closed furnaces may be used, the charge being preferably agitated during treatment; or a reverberatory furnace of any kind may be used, care then being taken that the combustion gases are poor in oxygen, or that a neutral atmosphere is provided above the charge, as by adding reducing material thereto; in the latter case, the distilled sulphides may be oxidized in the higher portions of the furnace. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE265162X | 1926-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB265162A true GB265162A (en) | 1927-07-14 |
Family
ID=5992994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15327A Expired GB265162A (en) | 1926-01-26 | 1927-01-03 | Improvements in or relating to processes for working up complex ores and metallurgical products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB265162A (en) |
-
1927
- 1927-01-03 GB GB15327A patent/GB265162A/en not_active Expired
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