Hydrosulfite production

Details Hydrosulfite production Hydrosulfite production

1976-09-09

1978-02-28

Cooper, Jack

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423140, 8110, 252188, C01B 1766

Patent

active

040767957

ABSTRACT:
An improved method for producing iron hydrosulfite liquor by reduction of sulfur dioxide with metallic iron is disclosed. Also disclosed are improvements in the conversion of the iron hydrosulfite liquor to produce sodium hydrosulfite bleach liquors.

REFERENCES:
patent: 791675 (1905-06-01), Descamps
patent: 961391 (1910-06-01), Weindel
patent: 2226576 (1940-12-01), Park et al.
patent: 3804944 (1974-04-01), Kise et al.
Murray et al., "Pulp and Paper Mag. of Canada" 68, 1967.

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