PROCÉDÉ DE FABRICATION DU 1,4-BIS(4-PHÉNOXYBENZOYLBENZÈNE) UTILISANT DU CHLORURE DE TÉRÉPHTALOYLE ESSENTIELLEMENT NON-HYDROLYSÉ

摘要

A method for manufacturing 1,4-bis(4-phenoxybenzoyl)benzene, comprising:- providing a solvent, a Lewis acid, a first reactant and a second reactant,wherein the first reactant and the second reactant are respectively terephthaloyl chloride and diphenyl ether, or reversely;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 ortho-dichlorobenzene containing less than 100 ppm by weight of water, at a temperature of 20°C, a solution is obtained having a turbidity of less than 500 NTU;- mixing the first reactant in the solvent to make a starting mixture; and,- adding the second reactant to the starting mixture;wherein the Lewis acid is mixed to the starting mixture before adding the second reactant and/or with the second reactant.