METHOD FOR PRODUCING BIS(3,5-DIBROMO-4- DIBROMOPROPOXYPHENYL) SULFONE GRANULE

摘要

PROBLEM TO BE SOLVED: To provide a method for industrially advantageously producing a granule of bis(3,5-dibromo-4-dibromopropoxyphenyl)sulfone excellent in handleability.;SOLUTION: In this method for producing bis(3,5-dibromo-4- dibromopropoxyphenyl)sulfone as a granule produced by a bromination reaction of a bis(4-allyloxy-3,5-dibromophenyl)sulfone, the method is characterized in that a solution of bis(3,5-dibromo-4-dibromopropoxyphenyl)sulfone obtained by the production process is dripped into a heated poor solvent and simultaneously cold water is added to bis(3,5-dibromo-4-dibromopropoxyphenyl)sulfone dispersed into the poor solvent while distilling away the solvent to give the granule of bis(3,5-dibromo-4-dibromopropoxyphenyl)sulfone.;COPYRIGHT: (C)2001,JPO