GB668817A - Production of sodium chlorite - Google Patents

Production of sodium chlorite

Info

Publication number
GB668817A
GB668817A GB26589/50A GB2658950A GB668817A GB 668817 A GB668817 A GB 668817A GB 26589/50 A GB26589/50 A GB 26589/50A GB 2658950 A GB2658950 A GB 2658950A GB 668817 A GB668817 A GB 668817A
Authority
GB
United Kingdom
Prior art keywords
potassium
chlorate
sodium
hydroxide
sodium chlorite
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
GB26589/50A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB668817A publication Critical patent/GB668817A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/08—Chlorous acid
    • C01B11/10—Chlorites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

In the production of sodium chlorite by reaction between chlorine dioxide and sodium hydroxide solution, the chlorate ion produced is removed from the reaction mixture as potassium chlorate. This may be effected by treating a mixed solution of sodium and potassium hydroxides, or by adding potassium hydroxide after the reaction with sodium hydroxide. In the second process, the precipitated potassium chlorate is removed and the resulting solution of sodium chlorite and hydroxide further treated with chlorine dioxide, the process being continued until the solution contains only a small amount of sodium chlorate; the latter is decomposed by the addition of potassium chloride and the potassium chlorate formed is separated. The precipitation of potassium chlorate may be assisted by evaporation in vacuo.
GB26589/50A 1949-11-21 1950-10-31 Production of sodium chlorite Expired GB668817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH668817X 1949-11-21

Publications (1)

Publication Number Publication Date
GB668817A true GB668817A (en) 1952-03-19

Family

ID=4527504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26589/50A Expired GB668817A (en) 1949-11-21 1950-10-31 Production of sodium chlorite

Country Status (1)

Country Link
GB (1) GB668817A (en)

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