Chemistry: electrical and wave energy – Processes and products
Patent
1990-08-22
1992-12-29
Niebling, John
Chemistry: electrical and wave energy
Processes and products
204101, 423472, 423478, C25B 126, C01B 1102, C01B 1112, C01B 1114
Patent
active
051748681
ABSTRACT:
Chlorine dioxide, useful as a pulp mill chemical, is produced without producing sodium sulfate effluent for disposal, by effecting reduction of chloric acid in an aqueous reaction medium in a reaction zone at a total acid normality of up to about 7 normal in the substantial absence of sulfate ion and in the presence of a dead load of sodium chlorate added to and subsequently removed from the reaction medium. Chloric acid for the process is produced electrolytically from an aqueous solution of the deadload sodium chlorate and make-up quantities of sodium chlorate. The chloric acid reduction to produce chlorine dioxide may be effected using methanol or electrolytically.
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Fredette Maurice C. J.
Lipsztajn Marek
Twardowski Zbigniew
Bolam Brian M.
Niebling John
Tenneco Canada Inc.
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