Treatment of waste stream from adipic acid manufacture

Details Treatment of waste stream from adipic acid manufacture Treatment of waste stream from adipic acid manufacture

1979-11-15

1981-06-02

Bascomb, Jr., Wilbur L.

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

Organic compounds

Carboxylic acid esters

203 38, 203 43, 203 66, 203DIG25, B01D 334, C07C 6700

Patent

active

042713153

ABSTRACT:
This invention provides a process for improving the recovery of byproducts associated with the isolation of C.sub.4 -C.sub.6 dicarboxylic acids contained in a waste byproduct stream, derived from an adipic acid manufacturing operation wherein there is involved nitric acid oxidation of a cyclohexanone/cyclohexanol feedstream.
The main byproducts which are isolated are high purity dimethyl succinate, dimethyl glutarate and dimethyl adipate. Monomethyl esters of these dicarboxylic acids are recovered and recycled in the process.

REFERENCES:
patent: 2824122 (1958-02-01), Kuceski
patent: 3726888 (1973-04-01), Hatten et al.
patent: 3810937 (1974-05-01), Kuceski
patent: 3886199 (1975-05-01), Suter et al.
patent: 4052441 (1977-10-01), Brunner
patent: 4076948 (1978-02-01), Mims
patent: 4082788 (1978-04-01), Mims
patent: 4105856 (1978-08-01), Newton

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