Method of brown stock washing

Details Method of brown stock washing Method of brown stock washing

D - Textiles, Paper

21

C

9/70

D21C 9/06 (2006.01) D21C 9/02 (2006.01) D21C 9/08 (2006.01)

Patent

CA 1252258

Abstract An improved method of brown stock washing is disclosed. A nonionic surfactant in combination with a polyelectrolyte dispersant, and preferably a solvent, are utilized in the washing step in the pulping of virgin cellulosic fiber. The methods of the invention provide for the enhanced removal and recovery of cooking chemicals and organics from the pulp.

479010

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