Method at the digestion of cellulose-containing material

Details Method at the digestion of cellulose-containing material Method at the digestion of cellulose-containing material

D - Textiles, Paper

21

C

9/17, 8/80

D21C 11/06 (2006.01) B01D 53/50 (2006.01) B01D 53/68 (2006.01) D21C 11/00 (2006.01)

Patent

CA 1122360

ABSTRACT A process for the digestion and bleaching of cellulose-containing material in a sulphate pulp mill provides a fully bleached sulphate pulp with reduced environmental pollution by absorbing SO2-containing gas in an absorption liquor which comprises an alkali metal salt free from sulphur and its compounds.

324634

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