Method and apparatus for producing pulp

Details Method and apparatus for producing pulp Method and apparatus for producing pulp

D - Textiles, Paper

21

C

9/16, 92/57

D21C 3/02 (2006.01) D21C 11/00 (2006.01)

Patent

CA 1120663

ABSTRACT OF THE DISCLOSURE In the production of pulp, the amount of ballast in the white liquor is reduced by maintaining the concentra- tion of the green liquor, prior to causticizing thereof to convert it to the white liquor used for cooking the wood, at a level of 110?20 grams per liter total filtratable alkali counted as NaOH, maintaining the efficiency of the causti- cizing operation at 92?3%, and concentrating the white liquor, prior to the cooking, by evaporation to a content of 130-200 grams per liter efficient alkali counted as NaOH.

334665

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