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大连凯信石化科技有限公司开发出一种过滤回收PTA氧化阶段母液中固体颗粒的方法和应用该方法的过滤器。它包括对母液进行过滤,使母液中的固体颗粒积聚成滤饼,使滤饼与母液分离,对滤饼进行干燥处理等步骤。其中滤饼与母液分离时通入气体保证滤芯两侧的压差使滤饼附着于滤芯表面,用于对母液进行过滤的过滤介质包括所述滤芯。该技术方案可一
Dalian Kai letter Petrochemical Technology Co., Ltd. has developed a filter PTA recovery of solid phase in the mother liquor particles and the method used in the filter. The method comprises the following steps of: filtering mother liquor, accumulating solid particles in the mother liquid into a filter cake, separating the filter cake from the mother liquor, and drying the filter cake. Wherein when the filter cake is separated from the mother liquor, gas is introduced to ensure the pressure difference on both sides of the filter element so that the filter cake attaches to the surface of the filter element; and the filter medium used for filtering the mother liquor includes the filter element. This technical solution can be one