METHOD FOR PRODUCING 2,6-DMN FROM MIXED DIMETHYLNAPHTHALENES BY CRYSTALLIZATION, ADSORPTION AND ISOMERIZATION

摘要

A method is disclosed to produce 2,6-dimethylnaphthalene (2,6-DMN), used for the production of polyethylene naphthalate, at high purity and high yield from a mixture of dimethylnaphthalene isomers without limitation to the specific isomers present in the feed by a series of fractionation, crystallization and adsorption steps.