[EN] PURIFICATION OF 1,4-BIS (4-PHENOXYBENZOYLBENZENE) BY CENTRIFUGAL FILTRATION<br/>[FR] PURIFICATION DE 1,4-BIS (4-PHÉNOXYBENZOYLBENZÈNE) PAR FILTRATION CENTRIFUGE
申请人:ARKEMA FRANCE
公开号:WO2018211046A1
公开(公告)日:2018-11-22
The invention relates to a method for manufacturing 1,4-bis(4- phenoxybenzoylbenzene), comprising: –reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture comprising a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex; –putting the product mixture in contact with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoylbenzene); –subjecting at least the second phase to a solid / liquid separation step by centrifugal filtration, so as to recover solid 1,4-bis(4- phenoxybenzoylbenzene).
本发明涉及一种制备1,4-双(4-苯氧基苯甲酰基苯)的方法,包括以下步骤:-在反应溶剂和路易斯酸的存在下,将对苯二甲酰氯与二苯醚反应,从而得到包含1,4-双(4-苯氧基苯甲酰基苯)-路易斯酸复合物的产物混合物;-将产物混合物与质子溶剂接触,从而得到包含路易斯酸的第一相和包含1,4-双(4-苯氧基苯甲酰基苯)的第二相;-通过离心过滤对至少第二相进行固液分离步骤,以回收固体1,4-双(4-苯氧基苯甲酰基苯)。