Glutaric Acid → Adipic Acid

Participants

Reaction Steps

The mother liquor with the urea-succinic acid adduct removed was treated with AMBERLITE IR-121 (trade name of a strongly acidic ion exchange resin manufactured and sold by ROHM AND HAAS, U.S.A.) to remove urea. 100 g. of water was then distilled off from the liquor. On cooling to and allowing to stand at 15° C., crude adipic acid crystallized out of the liquor. By filtration, 12.0 g. of crude adipic acid was obtained. The obtained crude adipic acid contained 2.6% by weight of glutaric acid and 0.8% by weight of succinic acid. This crude adipic acid may be recycled to a purification step in the production of adipic acid to obtain pure adipic acid.

Provenance & Evidence