Production of chlorine dioxide with conversion of by-product sol

Details Production of chlorine dioxide with conversion of by-product sol Production of chlorine dioxide with conversion of by-product sol

1980-09-22

1982-04-20

Hearn, Brian E.

Chemistry of inorganic compounds

Halogen or compound thereof

Chlorine dioxide

423479, 423531, 423551, C01B 1102, C01B 1790, C01B 500

Patent

active

043259340

ABSTRACT:
A highly efficient chlorine dioxide generating process which produces chlorine-free chlorine dioxide and neutral solid phase sodium sulphate from sodium chlorate, sulphuric acid and methanol is described. Solid phase sodium acid sulphate recovered from the high acidity reaction medium is metathesized using controlled quantities of water and controlled quantities of methanol to form the solid phase neutral sodium sulphate. Sulphuric acid recovered from the acid sulphate by the metathesis is recycled to the generator along with a part of the methanol used in the metathesis.

REFERENCES:
patent: 3563702 (1971-02-01), Partridge
patent: 3933988 (1976-01-01), Rosen
patent: 4081520 (1978-03-01), Swindells
patent: 4104365 (1978-08-01), Howard
Butler et al. "The Action of Alcohol on the Sulphates of Sodium" J. Chem. Soc., 117 (1920) pp. 649-667.

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