Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1991-09-03
1992-08-04
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549273, 549295, 549328, 562480, 562486, C07D31300, C07C 6314
Patent
active
051360551
ABSTRACT:
A 21-carbon aliphatic branched chain dicarboxylic acid and a 21-carbon lactone are produced by reacting fatty acid (which contains linoleic acid) with acrylic acid via iodine catalysis, and subsequently removing from the low monomer reaction product the resulting C-21 lactone via solvent extraction with acetonitrile and hexane or heptane. The reaction products are distilled to yield dicarboxylic acid and lactone of high purity.
REFERENCES:
patent: 2278309 (1942-03-01), Freeman
patent: 2313636 (1943-03-01), Freeman
patent: 3753968 (1973-08-01), Ward
"Double-Solvent (Fractional) Extraction," Perry, R. H. and Chilton, C. H., Chemical Engineers' Handbook, 5th Edition, 1973, pp. 15-23, 24.
"Industrial Utilization of C21 Dicarboxylic Acid," Benjamin F. Ward et al., The Journal of the American Oil Chemicals Society, vol. 52, Jul. 1975, pp. 291-224.
"New Solvent System for Separation of Fatty Acids C.sub.10 -C.sub.18 by Countercurrent Distribution," Will Fritz, III, Analytical Chemistry, vol. 33, No. 4, Apr. 1961, pp. 647-648.
"Polymerization, Copolymerization, and Isomerization," J. P. Cowan, The Journal of the American Oil Chemicals Society, vol. 31, Nov. 1954, pp. 529-535.
Ivy C. Warren
McDaniel Terry B.
Reece IV Daniel B.
Schmalz Richard L.
Trinh Ba K.
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