Reduce the Silica Content in Wheat Straw Pulping Black Liquor

摘要

Substitution of Na_2SO_3 for part NaOH (from 5% to 30%) in cooking chemicals is introduced in this paper. The results indicated that the silica content in wheat straw pulping black liquor was reduced, the viscosity of black liquor was decreased, the properties of black liquor were improved and the pulp quality was enhanced.