Purification of crude isophthalic acid

Details Purification of crude isophthalic acid Purification of crude isophthalic acid

1989-10-11

1990-06-12

Lone, Werren B.

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

Organic compounds

Carboxylic acids and salts thereof

560 78, 562486, C07C 51487

Patent

active

049334921

ABSTRACT:
Solutions of crude isophthalic acid are purified by hydrogenation in the presence of a catalyst comprising two Group VIII noble metal-containing components.

REFERENCES:
patent: 3584039 (1971-06-01), Meyer
patent: 3726915 (1973-04-01), Pohlmann
patent: 4405809 (1983-09-01), Stech et al.
patent: 4467110 (1984-08-01), Puskas et al.
patent: 4626598 (1986-12-01), Packer et al.

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