GB235844A - Improvements in or relating to the manufacture of zinc oxide - Google Patents

Improvements in or relating to the manufacture of zinc oxide

Info

Publication number
GB235844A
GB235844A GB9732/25A GB973225A GB235844A GB 235844 A GB235844 A GB 235844A GB 9732/25 A GB9732/25 A GB 9732/25A GB 973225 A GB973225 A GB 973225A GB 235844 A GB235844 A GB 235844A
Authority
GB
United Kingdom
Prior art keywords
zinc
zinc oxide
retort
sulphur trioxide
fume
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
GB9732/25A
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.)
New Jersey Zinc Co
Original Assignee
New Jersey Zinc Co
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 New Jersey Zinc Co filed Critical New Jersey Zinc Co
Publication of GB235844A publication Critical patent/GB235844A/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)

Abstract

235,844. New Jersey Zinc Co., (Assignees of Breyer, F. G., and Bunce, E. H.). June 17, 1924, [Convention date]. Zinc oxide.-In the manufacture of zinc oxide by the retort volatilizing process sulphur trioxide is associated with the fume resulting from the oxidation of metallic zinc vapour, to form white compounds with impurities such as lead and cadmium in the fume. Sulphuric acid mist and gaseous mixtures containing sulphur trioxide may be used. The zinc is volatilized under non-oxidizing conditions in a retort 5 and the zinc vapour passes into an oxidizing atmosphere maintained by a current of air in the flue 6. The sulphur trioxide may be introduced by a main 7 and distributing pipes 8 into the oxidizing chamber 6 or through the conduits 9 for conducting producer gas, or directly into the retort 5, or into the settling chambers or the reheating apparatus in which the zinc oxide is heated in upright retorts to a temperature of 450‹-700‹ C. and then is passed into large trays or an insulated hopper maintained above 450‹ C. Specification 120,194 is referred to.
GB9732/25A 1924-06-17 1925-04-14 Improvements in or relating to the manufacture of zinc oxide Expired GB235844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US235844XA 1924-06-17 1924-06-17

Publications (1)

Publication Number Publication Date
GB235844A true GB235844A (en) 1925-12-17

Family

ID=21816013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9732/25A Expired GB235844A (en) 1924-06-17 1925-04-14 Improvements in or relating to the manufacture of zinc oxide

Country Status (1)

Country Link
GB (1) GB235844A (en)

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