Treatment of byproduct steam from adipic acid manufacture

Details Treatment of byproduct steam from adipic acid manufacture Treatment of byproduct steam from adipic acid manufacture

C - Chemistry, Metallurgy

07

C

202/84, 260/496.

C07C 69/34 (2006.01) C02F 1/04 (2006.01) C02F 1/26 (2006.01) C02F 9/00 (2006.01) C07C 51/493 (2006.01)

Patent

CA 1140585

ABSTRACT OF THE DISCLOSURE In one embodiment, this invention provides a process fox converting a dilute aqueous filtrate byproduct stream from adipic acid manufacture into a concentrated methanolic solution which does not solidify at ambient temperatures. In another embodiment, this invention provides an improved process for the separation and recovery of byproducts associated with the isolation of C4-C6 dicarboxylic acids contained in a waste byproduct stream derived from an adipic acid manufacturing operation involving nitric acid oxidation of a cyclohexanone/cyclohexanol feedstream in the presence of a catalyst.

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