申请人:ASAHI GLASS COMPANY LTD.
公开号:EP0383333A1
公开(公告)日:1990-08-22
A method for purifying a polyoxyalkylene alcohol, which comprises treating with a treating agent consisting essentially of a pH buffer, a polyoxyalkylene alcohol containing a double metal cyanide complex catalyst, synthesized by ring-opening polymerization of an alkylene oxide in the presence of said catalyst, and then removing the catalyst and the treating agent from the polyoxyalkylene alcohol.
一种净化聚氧亚烷基醇的方法,包括用一种主要由 pH 缓冲剂组成的处理剂处理含有双金属氰化物络合催化剂的聚氧亚烷基醇,该催化剂是在所述催化剂存在下通过环氧亚烷基开环聚合合成的,然后从聚氧亚烷基醇中除去催化剂和处理剂。