Metathesis of acidic by-product of chlorine dioxide generating a

Details Metathesis of acidic by-product of chlorine dioxide generating a Metathesis of acidic by-product of chlorine dioxide generating a

1992-03-02

1993-04-27

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

422234, 422267, 422281, 423477, 423478, 423522, B01J 804

Patent

active

052059952

ABSTRACT:
Sodium sesquisulfate produced in crystalline form in a high acidity methanol-based highly efficient chlorine dioxide generating process is converted by metathesis to crystalline anhydrous neutral sodium sulfate and the acid recovered as a result is recycled to the chlorine dioxide generating step. The metathesis is effected by contacting the crystalline sodium sesquisulfate with aqueous sodium chlorate solution, aqueous sodium chloride solution, aqueous methanol or water alone. The metathesis is effected in such manner as to minimize the additional evaporative load imposed on the chlorine dioxide generating process by the metathesis medium.

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