METHOD OF BROWN STOCK WASHING

摘要

AbstractAn improved method of brown stock washing isdisclosed. A nonionic surfactant in combination with apolyelectrolyte dispersant, and preferably a solvent,are utilized in the washing step in the pulping ofvirgin cellulosic fiber. The methods of the inventionprovide for the enhanced removal and recovery of cookingchemicals and organics from the pulp.