METHOD FOR PRODUCING DIOL OR TRIOL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a diol or triol, which method includes a process for eliminating impurities included in a diol- or triol-including solution. SOLUTION: The method for producing a diol or triol includes a process A in which the diol- or triol-including solution is filtered through a nano-filtration membrane having a functional layer including a polyamide and is recovered from the permeation side. COPYRIGHT: (C)2010,JPO&INPIT