Process for producing tetrakisfluorophenylborate

摘要

A process for preparing a tetrakisfluorophenylborate which is useful as a catalyst component for the polymerization of olefins or as a raw material for synthesizing the same, efficiently at a high productivity per unit amount of a solvent and at a high yield. A mixed solvent of ether and an aliphatic hydrocarbon is used as a reaction solvent for preparing tetrakisphenylborate according to the following reaction formula, 4M<4>-C6Y<3>5 + BCl3 -> M<4>B(C6Y<3>5)4 wherein M<4> is an alkali or alkaline earth metal, or represents R<6>2Al, wherein R<6> is an alkyl group, and Y<3> is a hydrogen atom or a halogen atom.