GB711954A - Improvements relating to the refining of metals by distillation - Google Patents
Improvements relating to the refining of metals by distillationInfo
- Publication number
- GB711954A GB711954A GB18457/50A GB1845750A GB711954A GB 711954 A GB711954 A GB 711954A GB 18457/50 A GB18457/50 A GB 18457/50A GB 1845750 A GB1845750 A GB 1845750A GB 711954 A GB711954 A GB 711954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- molten metal
- pipe
- lead
- discharged
- 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
- C22B13/00—Obtaining lead
- C22B13/06—Refining
-
- 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
-
- 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
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
711,954. Distillingmetals. BROKEN HILL ASSOCIATED SMELTERS PROPRIETARY, Ltd. July 24, 1950 [Aug. 5, 1949], No. 18457/50. Class 82 (1) In a method of separating and recovering a relatively volatile constituent from a molten metal complex, the molten metal is passed progressively downwards in a substantially vertically extended evaporating zone within an enclosed space maintained at a low pressure and within which is a substantially vertically extended condensing zone, the latter being such that the volatile constituent is condensed first'as a solid until the temperature of the surface is such that condensation is in the liquid state the liquid volatile constituent being discharged separately from the treated molten metal. As shown, applied to the separation of zinc from lead containing it, the molten metal is introduced by a pipe 23 into an enclosed vessel 10 mounted on three levelling screws 22 resting on brickwork 21. The molten metal flows over a weir formed by a control ring 14 spaced from the upper rim of an evaporating vessel comprised by a downwardly convergent tube 13. The zinc is evaporated from the film of molten metal flowing down the tube 13 and condenses on a downwardly directed, water-cooled condenser 12 situated centrally of the evaporation zone. the zinc condensing first as a solid and then, when equilibrium conditions have been reached, as a liquid which falls on to a baffle.plate 31 and finally is discharged to a barometric column of zinc in a pipe 28. The lead, free from most of the zinc is discharged to a barometric column of lead in a pipe 26. The enclosed space is maintained at a low pressure by a vacuum pump having its suction pipe passing through the condenser, a scraper 41 being provided to remove any zinc condensing inside the pipe. In a modification, Fig. 5 (not shown), the suction of the vacuum pump is at the bottom of the vessel. The inner surface of the evaporation tube may be provided with a helical channel, Fig. 7 (not shown). In a further modification, Fig. 6 (not shown) the zinc is dissolved in softened lead bullion which requires an addition of zinc for a succeeding desilvering operation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU711954X | 1949-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB711954A true GB711954A (en) | 1954-07-14 |
Family
ID=3754164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18457/50A Expired GB711954A (en) | 1949-08-05 | 1950-07-24 | Improvements relating to the refining of metals by distillation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB711954A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3031296A (en) * | 1957-10-18 | 1962-04-24 | Metallurgical Processes Ltd | Separation of lead and zinc |
-
1950
- 1950-07-24 GB GB18457/50A patent/GB711954A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3031296A (en) * | 1957-10-18 | 1962-04-24 | Metallurgical Processes Ltd | Separation of lead and zinc |
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