METHOD OF ISOLATION OF PHENOL, PYROCATECHOL AND HYDROQUINONE FROM THEIR MIXTURE WITH WATER AND RESIN-LIKE PRODUCTS

摘要

FIELD: chemical technology. SUBSTANCE: mixture of phenol, pyrocatechol, hydroquinone and resin with water is treated with extractant: ether or ester or their mixture or high alcohol in the presence of addition - bis-(5-sulfonatenaphthyl-sodium)-methane salt taken at concentration 15-50% of resin-like product mass. Then aqueous layer is separated, and the end products were isolated from organic layer by distillation. EFFECT: improved method of isolation of products indicated above. 1 tbl