Method for the purification of dicarboxylic acids produced...

Details Method for the purification of dicarboxylic acids produced... Method for the purification of dicarboxylic acids produced...

C - Chemistry, Metallurgy

07

C

260/533.7

C07C 55/02 (2006.01) C07C 51/48 (2006.01) C12P 7/44 (2006.01)

Patent

CA 1136159

ABSTRACT OF THE DISCLOSURE Long-chain dicarboxylic acids, especially those produced by fermentation, are purified by a process involving dissolving the acid on a salt thereof in a lower aliphatic alcohol, tetrahydrofuran or aqueous solutions thereof, and removing insolubles from the solution so formed.

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