Process for producing kraft pulp for paper

D - Textiles – Paper – 21 – C

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9/26

D21C 3/00 (2006.01)

Patent

CA 1321449

ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for making paper and linerboard, the process employing certain nonionic sur- face active agents to increase the yield of kraft pulping, the surface active agents having the structural formula Image where n is an integer from 8 to 12, and x is a positive integer from 1 to about 100, the surface active agent being present in the cooking liquor in an amount effective to increase the yield of pulp.

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