GB347239A - Process for the treatment of zinc ore - Google Patents
Process for the treatment of zinc oreInfo
- Publication number
- GB347239A GB347239A GB3863029A GB3863029A GB347239A GB 347239 A GB347239 A GB 347239A GB 3863029 A GB3863029 A GB 3863029A GB 3863029 A GB3863029 A GB 3863029A GB 347239 A GB347239 A GB 347239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- furnace
- zinc
- pict
- iii
- 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
-
- 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
- C22B19/20—Obtaining zinc otherwise than by distilling
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/04—Heavy metals
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
<PICT:0347239/III/1> <PICT:0347239/III/2> <PICT:0347239/III/3> The production of zinc oxide from zinc ores is effected by introducing into a continuous electrically heated shaft furnace a granular free-flowing charge, preferably preheated, comprising granular sintered zinc ore and granular carbonaceous material and heating the charge by utilizing its resistance to the passage of an electric current to a temperature sufficient to distil the zinc but insufficient to fuse or slag the residue and preferably below the distillation point of the sulphide in the ore, e.g. about 1100 DEG C. The sintering of the ore may be carried out in conjunction with a desulphurizing process. The furnace used may comprise a series of independently supported <PICT:0347239/III/4> sections A .. D, forming the reducing chamber, a preheater section F and a discharge section E. The sections are supported from columns 18 by means of brackets 19 and adjustable insulated depending rods 20 carrying skew-rings 25 which support annular rings 26 of brickwork on which brick columns 27 and annular rings 28 rest. A shell or casing 29 is provided in sections B, C, D and F, the space between the shell 29 and the brickwork 27 being packed with powdered chrome ore. In the annular space between the rings 28, 26 are luted either condensers 34x, Fig. 8, if metal is required, or, if oxide is required, tuyeres 32, Fig. 4, leading the zinc vapour to conduits 33 into which air is introduced to oxidize the vapour. Three electrodes G, H, I, Fig. 9, preferably rectangular or square in cross section, spaced about 120 DEG apart, extend through the section A of the furnace and corresponding electrodes displaced through 180 DEG , G<1>, H<1>, I<1>, extend through the section D, the current passing diagonally through the charge from each upper electrode to the corresponding lower electrode. Either alternating or direct current may be used. The preheater section F comprises a tube 10 heated by combustion products from a burner which pass upward in a tortuous path through a flue 11 with baffles 12. The discharge section E, which may be cylindrical or tapered, is provided beneath its lower end with a rotating table 36 for removal of the residue and to render the furnace readily accessible a lift 34, mounted on a circular track extending round the furnace, is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3863029A GB347239A (en) | 1929-12-17 | 1929-12-17 | Process for the treatment of zinc ore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3863029A GB347239A (en) | 1929-12-17 | 1929-12-17 | Process for the treatment of zinc ore |
Publications (1)
Publication Number | Publication Date |
---|---|
GB347239A true GB347239A (en) | 1931-04-17 |
Family
ID=10404708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3863029A Expired GB347239A (en) | 1929-12-17 | 1929-12-17 | Process for the treatment of zinc ore |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB347239A (en) |
-
1929
- 1929-12-17 GB GB3863029A patent/GB347239A/en not_active Expired
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