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SE8505756L - SET TO MAKE SIGNIFICANT CHLORINE Dioxide - Google Patents

SET TO MAKE SIGNIFICANT CHLORINE Dioxide

Info

Publication number
SE8505756L
SE8505756L SE8505756A SE8505756A SE8505756L SE 8505756 L SE8505756 L SE 8505756L SE 8505756 A SE8505756 A SE 8505756A SE 8505756 A SE8505756 A SE 8505756A SE 8505756 L SE8505756 L SE 8505756L
Authority
SE
Sweden
Prior art keywords
chlorine
chlorine dioxide
chlorite
approx
treated
Prior art date
Application number
SE8505756A
Other languages
Swedish (sv)
Other versions
SE8505756D0 (en
SE453745B (en
Inventor
M Norell
Original Assignee
Kema Nord Blekkemi Ab
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 Kema Nord Blekkemi Ab filed Critical Kema Nord Blekkemi Ab
Priority to SE8505756A priority Critical patent/SE453745B/en
Publication of SE8505756D0 publication Critical patent/SE8505756D0/en
Publication of SE8505756L publication Critical patent/SE8505756L/en
Publication of SE453745B publication Critical patent/SE453745B/en

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
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions

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)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Paper (AREA)

Abstract

A chlorine dioxide stream from chlorate reduction is absorbed in water and the resulting solution is treated with chlorite to remove residual chlorine. Pref. the process comprises (a) the chlorate is reacted with chloride ions and mineral acid in a chlorine dioxide generator at an acid normality of 2 to 12N approx.. (b) The mixt. is kept at approx., 50-100 deg. C; (c) It is subjected to reduced pressure; (d) alkali metal salt is precipitated and removed; (e) a mixture of chlorine dioxide, chlorine and steam is removed. An aqueous solution of chlorine dioxide (including residual chlorine) and a stream of chlorine is formed by contact with cold water; and (f) the resulting solution is treated with chlorite.
SE8505756A 1985-12-05 1985-12-05 Prodn. of chlorine-free chlorine di:oxide used as bleaching chemical SE453745B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8505756A SE453745B (en) 1985-12-05 1985-12-05 Prodn. of chlorine-free chlorine di:oxide used as bleaching chemical

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8505756A SE453745B (en) 1985-12-05 1985-12-05 Prodn. of chlorine-free chlorine di:oxide used as bleaching chemical

Publications (3)

Publication Number Publication Date
SE8505756D0 SE8505756D0 (en) 1985-12-05
SE8505756L true SE8505756L (en) 1987-06-06
SE453745B SE453745B (en) 1988-02-29

Family

ID=20362353

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8505756A SE453745B (en) 1985-12-05 1985-12-05 Prodn. of chlorine-free chlorine di:oxide used as bleaching chemical

Country Status (1)

Country Link
SE (1) SE453745B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9002262D0 (en) * 1990-06-27 1990-06-27 Eka Nobel Ab PROCEDURE FOR THE PREPARATION OF CHLOROXIDE
US5204081A (en) * 1991-05-03 1993-04-20 Rio Linda Chemical Co., Ltd. Process for the generation of chlorine dioxide

Also Published As

Publication number Publication date
SE8505756D0 (en) 1985-12-05
SE453745B (en) 1988-02-29

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