Chemistry of inorganic compounds – Halogen or compound thereof – Chlorine dioxide
Patent
1996-08-20
1997-10-14
Nguyen, Ngoc-Yen
Chemistry of inorganic compounds
Halogen or compound thereof
Chlorine dioxide
423477, C01B 1102
Patent
active
056769202
ABSTRACT:
Chlorine dioxide is produced by reaction of sodium chlorate, a reducing agent, preferably methanol or hydrogen peroxide, and sulfuric acid at the boiling point of the reaction medium under a subatmospheric pressure. Present in the reaction medium is a component which suppresses the solubility of by-product sodium sulfate and thereby increases the concentration of free hydrogen ions in the reaction medium available for reaction to form chlorine dioxide. The solubility-depressing component generally is an inert alkali metal salt, preferably an inert sodium salt, such as perchlorate or nitrate. By increasing the concentration of hydrogen ions available for reaction, it is possible to achieve an improvement in the rate of production of chlorine dioxide.
REFERENCES:
patent: 2332181 (1943-10-01), Soule
patent: 2489572 (1949-11-01), Hampel
patent: 2833624 (1958-05-01), Sprauer
patent: 2863722 (1958-12-01), Rapson
patent: 3975505 (1976-08-01), Fuller
patent: 4081520 (1978-03-01), Swindells et al.
patent: 4086328 (1978-04-01), SAwindells
patent: 4465658 (1984-08-01), Fredette
patent: 4473540 (1984-09-01), Fredette
patent: 4578261 (1986-03-01), Lobley
patent: 5091167 (1992-02-01), Engstrom et al.
patent: 5322598 (1994-06-01), Caulfield et al.
patent: 5342601 (1994-08-01), Caufield et al.
Nguyen Ngoc-Yen
Sterling Canada Inc.
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