Chemistry of inorganic compounds – Halogen or compound thereof – Chlorine dioxide
Patent
1991-05-17
1992-11-24
Straub, Gary P.
Chemistry of inorganic compounds
Halogen or compound thereof
Chlorine dioxide
423478, C01B 1102
Patent
active
051659115
ABSTRACT:
A process which comprises heating a reaction mixture comprised of an aqueous solution containing perchlorate ions, chlorate ions and hydrogen ions to produce chlorine dioxide and oxygen gas.
The novel process of the present invention provides a commercially viable process for producing chlorine dioxide from mixtures of oxy-chlorine species in the absence of a reducing agent. The process can be operated without producing an acidic salt by-product while producing a chlorine dioxide product which is substantially free of chlorine. In addition, the process of the invention permits a reduction in the amount of acid fed to the chlorine dioxide generator.
REFERENCES:
patent: 2157525 (1939-05-01), Cady
patent: 3810969 (1974-05-01), Schlumberger
patent: 4146578 (1979-03-01), Brennan et al.
patent: 4147761 (1979-04-01), Wojtowicz
patent: 4169134 (1979-09-01), Isa et al.
patent: 4798715 (1989-01-01), Hardee et al.
Cawlfield David W.
Mendiratta Sudhir K.
Lund Valerie
Meyer, Jr. Allen A.
Olin Corporation
Straub Gary P.
Weinstein Paul
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