FR2398807A1 - Impure cadmium refined by vacuum distillation - using an inverted U-tube still - Google Patents

Impure cadmium refined by vacuum distillation - using an inverted U-tube still

Info

Publication number
FR2398807A1
FR2398807A1 FR7723860A FR7723860A FR2398807A1 FR 2398807 A1 FR2398807 A1 FR 2398807A1 FR 7723860 A FR7723860 A FR 7723860A FR 7723860 A FR7723860 A FR 7723860A FR 2398807 A1 FR2398807 A1 FR 2398807A1
Authority
FR
France
Prior art keywords
cadmium
refined
inverted
impure
vacuum distillation
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.)
Pending
Application number
FR7723860A
Other languages
French (fr)
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.)
Preussag AG Metall
Original Assignee
Preussag AG Metall
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 Preussag AG Metall filed Critical Preussag AG Metall
Priority to FR7723860A priority Critical patent/FR2398807A1/en
Publication of FR2398807A1 publication Critical patent/FR2398807A1/en
Pending 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
    • C22B17/00—Obtaining cadmium
    • C22B17/06—Refining

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

Impure cadmium is refined by distillation of the molten metal in a vacuum. The impure metal is continually evaporated and the high boiling purities condensed with a part of the evaporated cadmium. The condensate is lead in counter-current to the evaporated gases. The main part of the evaporated gases is led off and condensed. Thallium, zinc, lead and copper are removed from cadmium.
FR7723860A 1977-07-29 1977-07-29 Impure cadmium refined by vacuum distillation - using an inverted U-tube still Pending FR2398807A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7723860A FR2398807A1 (en) 1977-07-29 1977-07-29 Impure cadmium refined by vacuum distillation - using an inverted U-tube still

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7723860A FR2398807A1 (en) 1977-07-29 1977-07-29 Impure cadmium refined by vacuum distillation - using an inverted U-tube still

Publications (1)

Publication Number Publication Date
FR2398807A1 true FR2398807A1 (en) 1979-02-23

Family

ID=9194167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723860A Pending FR2398807A1 (en) 1977-07-29 1977-07-29 Impure cadmium refined by vacuum distillation - using an inverted U-tube still

Country Status (1)

Country Link
FR (1) FR2398807A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458253A (en) * 1945-05-30 1949-01-04 Dow Chemical Co Apparatus for metals distillation
GB868857A (en) * 1958-03-28 1961-05-25 Int Alloys Ltd Apparatus for the continuous vacuum treatment of metals
US3080227A (en) * 1958-10-16 1963-03-05 Metallurgical Processes Ltd Removal of cadmium from zinc
DE2418170B1 (en) * 1974-04-13 1975-02-20 Preussag Ag Metall, 3380 Goslar Process and apparatus for refining crude cadmium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458253A (en) * 1945-05-30 1949-01-04 Dow Chemical Co Apparatus for metals distillation
GB868857A (en) * 1958-03-28 1961-05-25 Int Alloys Ltd Apparatus for the continuous vacuum treatment of metals
US3080227A (en) * 1958-10-16 1963-03-05 Metallurgical Processes Ltd Removal of cadmium from zinc
DE2418170B1 (en) * 1974-04-13 1975-02-20 Preussag Ag Metall, 3380 Goslar Process and apparatus for refining crude cadmium

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