Process for treating and regenerating spent caustic

Details Process for treating and regenerating spent caustic Process for treating and regenerating spent caustic

1992-07-09

1993-12-07

McCarthy, Neil M.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210639, 210641, 210748, 210760, 210916, 208235, C02F 132

Patent

active

052681041

ABSTRACT:
The present invention relates to a process for treating and regenerating a spent caustic solution at ambient temperatures which includes oxidizing the spent caustic stream with an air/ozone gas mixture, followed by irradiating the oxidized spent caustic stream with a broad range of ultraviolet radiation and finally filtering the spent caustic solution.

REFERENCES:
patent: 2665249 (1954-01-01), Zimmermann
patent: 2824058 (1958-02-01), Zimmermann
patent: 3761409 (1973-09-01), McCoy et al.
patent: 3963611 (1976-06-01), Dardenne-Ankringa, Jr.
patent: 4000065 (1976-12-01), Ladha et al.
patent: 4066543 (1978-01-01), McCoy
patent: 4176057 (1979-11-01), Wheatley et al.
patent: 4179365 (1979-12-01), Sumi
patent: 4230571 (1980-10-01), Dadd
patent: 4347144 (1982-08-01), Bodenbenner et al.
patent: 4347226 (1982-08-01), Audeh et al.
patent: 4350599 (1982-09-01), Chowdury
patent: 4372940 (1983-02-01), Brandenburg et al.
patent: 4417986 (1983-11-01), Connaught et al.
patent: 4584107 (1986-04-01), Odaka et al.
patent: 4746434 (1988-05-01), Grieves et al.
patent: 4793931 (1988-12-01), Stevens et al.
patent: 4826605 (1989-05-01), Doble et al.
patent: 4849114 (1989-07-01), Zeff et al.
patent: 4948511 (1990-08-01), Swanson et al.
"Ridding Process Waters and Caustic Solutions of Sulfides" by A. G. Smith; Jul. 9, 1956 pp. 95-99.
"New Column Removes Sulfide With Air" by Janice D. Martin and L. D. Levanas; May 1962, vol. 41, No. 5 pp. 149-153.
"A Plant for the Oxidation of Sulphide-Containing Refinery Wastes by Air" by Otto Abeg; Oct. 18, 1960.
"Plant for the Oxidation of Sulphide-Containing Refinery Wastes by Air" by Otto Abegg and Johannes Elster; Petrochemie Sep. 1962.
Proceedings of the 42nd Industrial Waste Conference May 12, 13, 14, 1987 Purdue University, West Lafayette, Ind.; "Spent Caustic Treatment and Disposal" by Yi-Shan Chen pp. 429-436.
"Petroleum Refinery Industry" Energy Saving and Environmental Control by Sitting M. copyright 1978.
"Wet Air Oxidation of Hazardous Organics in Wastewater" by Dietrich et al. Aug., 1985; Environmental Process vol. 4, No. 3 pp. 171-177.
"Pulse Radiolysis of Aqueous Sulfite Solutions" by Zagorski et al., The Journal of Physical Chemistry vol. 75, No. 23, Nov. 23, 1971 pp. 3510-3517.
"Evolution of the Ozone/UV Process for Eastewater Treatment" by H. William Prengle, Jr.; Sep., 1977.

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