Process for making a dicarboxylic acid

Details Process for making a dicarboxylic acid Process for making a dicarboxylic acid

1990-10-11

1991-10-01

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

560127, C07C 5100

Patent

active

050535340

ABSTRACT:
A 21-carbon aliphatic branched chain dicarboxylic acid is produced by reacting pre-conjugated fatty acid (which contains linoleic acid) with acrylic acid at a temperature between 180.degree. C. and 300.degree. C. No catalyst or solvent is necessary for the reaction to occur. The reaction product is subsequently distilled to yield high purity dicarboxylic acid.

REFERENCES:
patent: 2343644 (1944-03-01), Cawley
patent: 3162658 (1964-12-01), Baltes et al.
patent: 3753968 (1973-08-01), Ward
patent: 4156095 (1979-05-01), Jevne et al.
J. P. Cowan, "The Journal of the American Oil Chemicals Society", vol. 31, 11/54, pp. 529-535.
B. J. Ward et al., "The Journal of the American Oil Chemicals Society", vol. 52, 7/75, pp. 219-224.
"Westvaco Diacid.RTM. 1550 and 1595 Dicarboxylic Acids", Westvaco Chemical Division Product Data Bulletin, May, 1990.

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