Method for producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization
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United States of America Patent
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May 2, 2000
Grant Date -
N/A
app pub date -
Dec 30, 1997
filing date -
Dec 30, 1997
priority date (Note) -
Expired
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Abstract
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.
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