[go: up one dir, main page]

GB881343A - Improvements in or relating to the removal of cadmium from zinc - Google Patents

Improvements in or relating to the removal of cadmium from zinc

Info

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
Application number
GB3311058A
Inventor
Stephen Esslemont Woods
Thomas Ronald Albert Davey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Smelting Co Ltd
Original Assignee
National Smelting Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Smelting Co Ltd filed Critical National Smelting Co Ltd
Priority to GB3311058A priority Critical patent/GB881343A/en
Priority to DEM42813A priority patent/DE1132732B/en
Priority to ES0252355A priority patent/ES252355A1/en
Publication of GB881343A publication Critical patent/GB881343A/en
Expired legal-status Critical Current

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.
GB3311058A 1958-10-16 1958-10-16 Improvements in or relating to the removal of cadmium from zinc Expired GB881343A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
ES252355A1 (en) 1960-01-01
DE1132732C2 (en) 1963-01-24
DE1132732B (en) 1962-07-05

Similar Documents

Publication Publication Date Title
CN102706144A (en) Fractional condensation vacuum furnace
GB881343A (en) Improvements in or relating to the removal of cadmium from zinc
US3080227A (en) Removal of cadmium from zinc
US3031296A (en) Separation of lead and zinc
US2724644A (en) Method for condensing metal vapors directly to their liquid state
ES470024A1 (en) Evaporator
GB1470417A (en) Condensation of zinc vapour
US1994349A (en) Purifying zinc metal
GB557270A (en) Improvement in centrifugal stills
US2457552A (en) Vertical retort process for zinc smelting
GB574711A (en) Improvements relating to the purification of zinc, cadmium and magnesium by volatilisation
US3405926A (en) Apparatus for dezincing lead
US2939783A (en) Zinc refining
GB846152A (en) Improvements in or relating to the separation of lead and zinc
GB1057167A (en) Process for obtaining refined zinc by distillation
SE8203830D0 (en) CONDENSATION OF ZINKANGA
US1994356A (en) Apparatus for volatilizing zinc
SU146262A1 (en) Vacuum boiler for stripping zinc and cadmium from lead and their frictional condensation
GB766877A (en) Improved method and apparatus for the continuous vacuum distillation of metals
GB1410800A (en) Apparatus for condensing and separating a substance in solid form from a gas mixture
JPS54107422A (en) Purification of distilied zinc
US1994351A (en) Purifying zinc metal
US2021365A (en) Apparatus for the fractional condensation of metal vapors in a condenser rotating about a horizontal axis
US1994353A (en) Purifying zinc metal
US2668047A (en) Production of zinc