METHOD OF SYNTHESIS OF WATER-SOLUBLE SULFONATED DISPERSERS

摘要

FIELD: chemical technology. SUBSTANCE: method involves interaction of sulfur trioxide with aromatic fractions at mass ratio (0.8-1.5):1 at 5-45 C in the presence of sulfur dioxide. After sulfur dioxide removal sulfonation product is heated to 70-110 C and kept at this temperature for 10-200 min. Stages of interaction, sulfur dioxide removing, heating and keeping are carried out under conditions providing grinding and the forced moving the sulfonation solid product. Stage of oxidative oligomerization is carried out without solvent using. EFFECT: improved method of synthesis. 7 cl, 2 tble