GB881343A - Improvements in or relating to the removal of cadmium from zinc - Google Patents
Improvements in or relating to the removal of cadmium from zincInfo
- Publication number
- GB881343A GB881343A GB3311058A GB3311058A GB881343A GB 881343 A GB881343 A GB 881343A GB 3311058 A GB3311058 A GB 3311058A GB 3311058 A GB3311058 A GB 3311058A GB 881343 A GB881343 A GB 881343A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- cadmium
- vapour
- lead
- enriched
- 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
- C22B19/32—Refining zinc
-
- 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
- C22B17/00—Obtaining cadmium
- C22B17/02—Obtaining cadmium by dry processes
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/04—Obtaining zinc by distilling
- C22B19/16—Distilling vessels
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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
881,343. Distilling zinc. NATIONAL SMELTING CO. Ltd. Sept, 3, 1959 [Oct. 16, 1958], No. 33110/58. Class 82(1) Substantially pure zinc is obtained from lead containing both zinc and cadmium by distilling the lead to produce cadmium-containing zinc vapour which is partially condensed by contact with cooled solid body of zinc so that the uncondensed vapour becomes enriched in cadmium, collecting the molten zinc running off the solid body in a pool and heating the pool by direct conduction from the molten lead from which the zinc and cadmium have been distilled so that the cadmium-enriched vapour is redistilled from the pool which is thereby further impoverished in cadmium In the apparatus shown in Fig. 1, zinc and cadmium-containing lead enters by a pipe 2 to fill a well 3 and overflows a lip 7 to flow downwards over the inner surface of a wall 5. Cadmium containing zinc vapour is condensed on a condenser 12 having cooling coils 18. The upper part of the condenser is provided with a heat insulating lining 14. At a certain thickness of deposit 19 the vapour condenses as liquid and drips into a tray 20 heated by lead which has flowed over the walls 5. Cadmiuim-enriched vapour redistills from the tray which thereby contains substantially pure zinc. Vacuum is maintained via a pipe 16 and cadmium-enriched zinc vapour condenses in a cold trap 15. The cold trap may be replaced by a bayonet-type cooler and an annular system of inclined shelves may be fitted around the condenser to form an additional zinc refluxing stage as described in Specification 846,152.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3311058A GB881343A (en) | 1958-10-16 | 1958-10-16 | Improvements in or relating to the removal of cadmium from zinc |
DEM42813A DE1132732B (en) | 1958-10-16 | 1959-09-21 | Device for the production of practically cadmium-free zinc from cadmium-contaminated zinc vapor |
ES0252355A ES252355A1 (en) | 1958-10-16 | 1959-09-29 | Improvements in or relating to the removal of cadmium from zinc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3311058A GB881343A (en) | 1958-10-16 | 1958-10-16 | Improvements in or relating to the removal of cadmium from zinc |
Publications (1)
Publication Number | Publication Date |
---|---|
GB881343A true GB881343A (en) | 1961-11-01 |
Family
ID=10348688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3311058A Expired GB881343A (en) | 1958-10-16 | 1958-10-16 | Improvements in or relating to the removal of cadmium from zinc |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1132732B (en) |
ES (1) | ES252355A1 (en) |
GB (1) | GB881343A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108642296A (en) * | 2018-07-13 | 2018-10-12 | 昆明理工大学 | A method of lead and zinc are separated and recovered by hard lead |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE21483C (en) * | Dr. phil. G. WOLFRAM in Lipine (Oberschlesien) | Condensation device for metal vapors | ||
DE665125C (en) * | 1936-09-22 | 1938-09-17 | Metallgesellschaft Akt Ges | Process for processing zinc dust containing cadmium |
-
1958
- 1958-10-16 GB GB3311058A patent/GB881343A/en not_active Expired
-
1959
- 1959-09-21 DE DEM42813A patent/DE1132732B/en active Granted
- 1959-09-29 ES ES0252355A patent/ES252355A1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108642296A (en) * | 2018-07-13 | 2018-10-12 | 昆明理工大学 | A method of lead and zinc are separated and recovered by hard lead |
CN108642296B (en) * | 2018-07-13 | 2020-04-07 | 昆明理工大学 | Method for separating and recovering lead and zinc from lead-zinc alloy |
Also Published As
Publication number | Publication date |
---|---|
DE1132732B (en) | 1962-07-05 |
DE1132732C2 (en) | 1963-01-24 |
ES252355A1 (en) | 1960-01-01 |
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