Crystallizaiton of 2,6-dimethylnaphthalene

Details Crystallizaiton of 2,6-dimethylnaphthalene Crystallizaiton of 2,6-dimethylnaphthalene

1993-12-29

1996-04-23

Gibson, Sharon

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By cooling of liquid to obtain solid, e.g., crystallization,...

585452, 585467, 585804, 585805, C07C 714

Patent

active

055105637

ABSTRACT:
A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70.degree. F. and below, and high melting components (HM), including 2,6-dimethylnaphthalene, having melting points above 70.degree. F., such that: ##EQU1## where HM is the total weight percent of high melting components, including 2,6-dimethylnaphthalene, in the mixture, and LM is the total weight percent of low melting components in the mixture, and where T is the temperature of the crystallization in degrees Fahrenheit, and where A is at least 1.0.

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