US3685985A - Method for the removal of impurities from metallic zinc - Google Patents

Method for the removal of impurities from metallic zinc Download PDF

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Publication number
US3685985A
US3685985A US96235A US3685985DA US3685985A US 3685985 A US3685985 A US 3685985A US 96235 A US96235 A US 96235A US 3685985D A US3685985D A US 3685985DA US 3685985 A US3685985 A US 3685985A
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US
United States
Prior art keywords
zinc
silicon
impurities
removal
metallic zinc
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 - Lifetime
Application number
US96235A
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English (en)
Inventor
Raymond Dobbener
Hans De Haas
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Duisburger Kupferhuette
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3685985A publication Critical patent/US3685985A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • High-purity zinc may be obtained by distilling Fe-, Co-, Nior Mn-containing zinc or zinc alloys. While the yield is good in view of the thermal decomposition of said intermetallic zinc compounds, power consumption is high and elaborate equipment is needed.
  • intermetallic compounds of zinc with Fe, Co, Ni and/ or Mn can be converted with silicon to stable silicon compounds (silicides), the very low solubility of silicon in zinc and high-zinc alloys being a factor that greatly favors refining.
  • the zinc purified of Fe, Co, Ni and Mn contains no demonstrable amounts of silicon.
  • the silicon compounds forming with said impurities are crystalline up to the boiling point of zinc, have low specific gravity and are diflicultly wettable by zinc. Thus they can be readily separated.
  • Method for removing metallic impurities selected from the group of iron, cobalt, nickel, manganese or mixtures thereof from molten zinc which comprises admixing molten zinc with silicon thereby binding said impurities and thereafter separating the thus bound impurities.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US96235A 1969-12-13 1970-12-08 Method for the removal of impurities from metallic zinc Expired - Lifetime US3685985A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691962608 DE1962608B2 (de) 1969-12-13 1969-12-13 Verfahren zur entfernung von begleitmetallen aus metallischem zink

Publications (1)

Publication Number Publication Date
US3685985A true US3685985A (en) 1972-08-22

Family

ID=5753799

Family Applications (1)

Application Number Title Priority Date Filing Date
US96235A Expired - Lifetime US3685985A (en) 1969-12-13 1970-12-08 Method for the removal of impurities from metallic zinc

Country Status (4)

Country Link
US (1) US3685985A (fr)
BE (1) BE759638A (fr)
DE (1) DE1962608B2 (fr)
ES (1) ES386415A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657585A (en) * 1984-11-29 1987-04-14 Ishikawajima-Harima Jukogyo Kabushi Kaisha Method for separating cobalt, nickel and the like from alloys
WO2005083134A1 (fr) * 2004-02-26 2005-09-09 Umicore Recyclage de bain chaud de galvanisation de zinc

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734204A1 (de) * 1987-10-09 1989-04-20 Solms Juergen Verfahren zur verringerung des eisengehaltes von zinschmelzen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657585A (en) * 1984-11-29 1987-04-14 Ishikawajima-Harima Jukogyo Kabushi Kaisha Method for separating cobalt, nickel and the like from alloys
WO2005083134A1 (fr) * 2004-02-26 2005-09-09 Umicore Recyclage de bain chaud de galvanisation de zinc

Also Published As

Publication number Publication date
DE1962608B2 (de) 1971-05-19
DE1962608A1 (fr) 1971-05-19
BE759638A (fr) 1971-04-30
ES386415A1 (es) 1973-11-16

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