Purification of diphenyl phthalates

Details Purification of diphenyl phthalates Purification of diphenyl phthalates

1987-09-24

1989-02-07

Lone, Werren B.

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

Organic compounds

Carboxylic acid esters

560 86, C07C 6748

Patent

active

048032956

ABSTRACT:
Color properties of crude phenolic esters of aromatic dicarboxylic acids are improved by subjecting the esters to hydrogenation in the presence of hydrogen and a hydrogenation catalyst.

REFERENCES:
patent: 2043688 (1936-06-01), Woodhouse
patent: 2780643 (1957-02-01), Buchner
patent: 3487100 (1969-12-01), Arai et al.
patent: 4076946 (1978-02-01), Millick

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