Process for the purification of carboxylic acids and/or their an

Details Process for the purification of carboxylic acids and/or their an Process for the purification of carboxylic acids and/or their an

1992-09-16

1993-07-13

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

203 71, 203 88, C07C 5112, C07C 5308

Patent

active

052275205

ABSTRACT:
A process for purifying an iodide-contaminated carboxylic acid and/or anhydride fraction obtained by liquid phase carbonylation using a carbonylation catalyst, an iodine-containing promoter and optional iodine-containing copromoter comprises vaporizing the fraction after it has been freed of catalyst, feedstock and promoter components to produce a vapor acid and/or anhydride fraction having reduced iodide contamination.

REFERENCES:
patent: 2230112 (1941-01-01), Haney
patent: 2278831 (1942-04-01), Cockerille
patent: 2352253 (1944-06-01), Cockerille
patent: 2663681 (1953-12-01), Hull et al.
patent: 3700566 (1972-10-01), Bellanger et al.
patent: 3709795 (1973-01-01), Singleton
patent: 3769177 (1973-10-01), Eubanks
patent: 3772156 (1973-11-01), Johnson
patent: 3791935 (1974-02-01), Eubanks et al.
patent: 4008131 (1977-02-01), Price
patent: 4029553 (1977-06-01), Price
patent: 4039395 (1977-08-01), Eby
patent: 4039428 (1977-08-01), Wei
patent: 4107002 (1978-08-01), Eck et al.
patent: 4549937 (1985-10-01), Erpenbach et al.
patent: 4650615 (1987-03-01), Rizkalla
patent: 4664753 (1987-05-01), Erpenbach et al.
patent: 4792620 (1988-12-01), Paulik et al.
patent: 4975155 (1990-12-01), Gracey
patent: 5033104 (1991-03-01), Paulik et al.

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