Kraft pulping process

Details Kraft pulping process Kraft pulping process

D - Textiles, Paper

21

C

9/36.6

D21C 3/02 (2006.01) D21C 11/04 (2006.01)

Patent

CA 1312420

Abstract of the Disclosure A process for increasing the pulp producing capacity of a kraft mill including the steps of removing at least a portion of the lignin from kraft black liquor and separating the lignin from the aqueous phase. The next step is treating the aqueous phase to separate the inorganics and organics with the organics preferably being recycled to the process loop to be burned in the recovery furnace. The inorganics are converted into pulping chemicals which bypass the recovery furnace and are transported to white liquor preparation.

582298

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