METHOD FOR MANUFACTURING 1,4-BIS(4amp;#145;PHENOXYBENZOYLBENZENE) USING SUBSTANTIALLY NON-HYDROLYZED TEREPHTHALOYL CHLORIDE

摘要

The invention relates to a method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), comprising: - providing terephthaloyl chloride, diphenyl ether, a solvent and a Lewis acid, wherein the terephthaloyl chloride is of a purity grade such that, 10 minutes after introducing it at a reference concentration of 6.5 wt.% into said solvent, at a temperature of 20°C, a solution is obtained having a turbidity of less than 500 NTU; - mixing the terephthaloyl chloride, the diphenyl ether and the solvent so as to make a reactant mixture; - adding the Lewis acid to the reactant mixture so as to effect the reaction of the terephthaloyl chloride with the diphenyl ether; - recovering a product mixture comprising a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex.