Method for purifying a crude dimethyl naphthalene dicarboxylate

Details Method for purifying a crude dimethyl naphthalene dicarboxylate Method for purifying a crude dimethyl naphthalene dicarboxylate

1988-11-21

1989-12-12

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 78, 560 80, C07C 6748, C07C 6739

Patent

active

048869015

ABSTRACT:
A method for purifying a dimethyl naphthalene dicarboxylate produced from a naphthalene dicarboxylic acid which is in turn produced by the liquid phase oxidation of a dialkylnaphthalene or partially oxidized derivative thereof in the presence of a catalyst comprising a bromine-containing component and at least one of a cobalt- or manganese-containing component.

REFERENCES:
patent: 3334131 (1967-08-01), Burkhardt
patent: 3402195 (1968-09-01), Barna
patent: 3425915 (1969-02-01), Roberts et al.
patent: 3962315 (1976-06-01), Achsel et al.
patent: 4048021 (1977-09-01), Takamoto et al.
patent: 4126755 (1978-11-01), Bunger et al.

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