PURIFICATION OF RECOVERED METHANOL AND PURIFIED METHANOL

摘要

PURPOSE: To obtain high-purity methanol from methanol discharged and recovered in production of a polyester, useful for preparing a photosensitive emulsion, etc. ;CONSTITUTION: Methanol discharged and recovered in transesterifying an aromatic dicarboxylic acid dimethyl ester with glycol is heated with an alkali and distilled to give distilled methanol. Then the distilled methanol is treated with active carbon.;COPYRIGHT: (C)1996,JPO