GB362297A - Process for the manufacture of zinc white - Google Patents

Process for the manufacture of zinc white

Info

Publication number
GB362297A
GB362297A GB9909/31A GB990931A GB362297A GB 362297 A GB362297 A GB 362297A GB 9909/31 A GB9909/31 A GB 9909/31A GB 990931 A GB990931 A GB 990931A GB 362297 A GB362297 A GB 362297A
Authority
GB
United Kingdom
Prior art keywords
zinc
impurities
residues
sufficient water
manufacture
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
GB9909/31A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB362297A publication Critical patent/GB362297A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C01G9/02—Oxides; Hydroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Zinc residues, such as those obtained in galvanizing processes, from foundry operations, or from the use of zinc as a reducing agent, are subjected in the presence of sufficient water to form a slurry to distillation under oxidizing conditions with progressive heating to 1000 DEG C. or more. The bulk of the impurities present is thus volatilized or destroyed, leaving a crude zinc oxide which may be purified by volatilization from remaining nonvolatile impurities. Before distillation, the residues may be washed to extract soluble impurities and insoluble matter which remains suspended in the washing water; in this event, sufficient water for the heat treatment is allowed to remain.
GB9909/31A 1930-12-18 1931-04-01 Process for the manufacture of zinc white Expired GB362297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR362297X 1930-12-18

Publications (1)

Publication Number Publication Date
GB362297A true GB362297A (en) 1931-12-03

Family

ID=8894032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9909/31A Expired GB362297A (en) 1930-12-18 1931-04-01 Process for the manufacture of zinc white

Country Status (1)

Country Link
GB (1) GB362297A (en)

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