A method for clarifying coal liquors with water-soluble, high molecular weight polymers having low concentration of cationic moieties

摘要

Coal liquors are clarified by contacting them with high molecular weight copolymers of a nonionic water-soluble monomer, e.g., acrylamide, and a cationic comonomer, e.g., methacryloylethyl trimethyl ammonium chloride or methacrylamidopropyl trimethyl ammonium chloride.