PROCESS FOR SEPARATING CATALYSTS FROM SUSPENSIONS BY FILTRATION

摘要

HOE 91/F 084 of the disclosure Process for separating catalysts from suspensions by filtration The process for separating off rare metal catalysts used in the preparation of ether-carboxylic acids by catalytic oxidation with a suspended catalyst comprises carrying out a crossflow filtration and pretreating the filter elements used with a medium which is not solid under the treatment conditions and is composed of one or more carboxylic acids.