Elimination of sulfur dioxide formation in refiner bleaching

Details Elimination of sulfur dioxide formation in refiner bleaching Elimination of sulfur dioxide formation in refiner bleaching

D - Textiles, Paper

21

C

D21C 9/10 (2006.01) D21B 1/16 (2006.01)

Patent

CA 2111261

ABSTRACT A method for eliminating the formation of sulfur dioxide in a refiner bleaching process is disclosed wherein a selected amount of a carbonate is added to the refiner contents at approximately the same time that sodium dithionite is added.

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