Method for purifying organometal compound

摘要

A method for purifying an organometal compound by removing oxygen atom-containing compounds included in the organometal compound as impurities is herein disclosed. The method comprises the steps of mixing an organometal compound represented by the following formula: <IMAGE> with a crude product including an oxygen atom-containing compound represented by the following formula: R3-n M1(OR)n or R2-m M2(OR)m and an alkylaluminum chloride represented by the formula: X6-qAl2R and then distilling the resulting mixture. In the foregoing formulas, R's may be the same or different and each represents an alkyl group having 1 to 3 carbon atoms; M1 represents a trivalent metal element; M2 represents a divalent metal element; n is an integer of 1, 2 or 3; m is an integer of 1 or 2; q is an integer ranging from 1 to 5; and X represents a chlorine atom.