Spent pulping liquor recovery process

D - Textiles – Paper – 21 – C

Patent

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9/36.6

D21C 11/00 (2006.01) D21C 11/10 (2006.01) D21C 11/12 (2006.01)

Patent

CA 1247809

ABSTRACT A partially-oxidized spent pulping liquor is produced which is added to unoxidized strong spent pulping liquor prior, during, or subsequent to concentration to form a novel partially-oxidized, concentrated, high total solids spent pulping liquor. This novel, partially-oxidized, concentrated spent liquor is capable of being combusted in a spent liquor recovery furnace without the addition of auxiliary heating fuel with a resultant increase in the effective capacity of that furnace.

476940

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