Treatment of aqueous waste

Details Treatment of aqueous waste Treatment of aqueous waste

C - Chemistry, Metallurgy

07

C

362/45

C07C 37/68 (2006.01) C07C 37/74 (2006.01) C07C 39/04 (2006.01)

Patent

CA 1064171

TREATMENT OF AQUEOUS WASTE Abstract of the Disclosure In the process of producing phenol from cumene, aqueous waste streams result which are contaminated with organic materials, particularly phenol, which are made innocuous to the environment only with substantial diffi- culty. A process is described to reduce the biological oxygen demand of these aqueous wastes, particularly the phenol content, by a liquid extraction step whereby a highly aromatic fraction of an organic waste stream in the phenol process is used as the solvent. The process includes pro- vision for simultaneous preparation and recovery of the solvent as well as recovery of the phenol. I.

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