Process for purifying an aqueous, hydrogen sulfide-scrubbing sol

Details Process for purifying an aqueous, hydrogen sulfide-scrubbing sol Process for purifying an aqueous, hydrogen sulfide-scrubbing sol

1988-08-30

1989-11-28

Wyse, Tom

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210713, 210722, 210765, 210909, 210912, 423 55, 423 67, 423221, 423226, 4235731, C01G 3100, C02F 172

Patent

active

048836010

ABSTRACT:
A process for purifying an aqueous, hydrogen sulfide-scrubbing solution which contains a water-soluble transition metal component, such as a vanadium component or an iron component, in addition to at least one water-soluble organic compound, such as an aromatic sulfonate or an alkanolamine, in which the scrubbing solution is mixed with particles of a spent solid catalyst containing molybdenum and aluminum and a basic aqueous solution, preferably a solution comprising sodium aluminate, to form a slurry which is subsequently contacted with an oxygen-containing gas under conditions such that the molybdenum in the catalyst is solubilized. Thereafter, molybdenum is precipitated from the solution along with the water-soluble transition metal component and a wastewater substantially free of the transition metal component and the organic compound originally present in the scrubbing solution is recovered.

REFERENCES:
patent: 3956460 (1976-05-01), Brocoff
patent: 3959452 (1976-05-01), Espenscheid et al.
patent: 4060594 (1977-11-01), Fenton et al.
patent: 4118467 (1978-10-01), Sano et al.
patent: 4360508 (1982-11-01), Farrington et al.
patent: 4364918 (1982-12-01), Espenscheid
patent: 4367212 (1983-01-01), Castrantas
patent: 4385044 (1983-05-01), Wolcott
patent: 4451439 (1984-05-01), Maurel et al.
patent: 4495157 (1985-01-01), Sebenik et al.
patent: 4544533 (1985-10-01), Marcantonio
patent: 4666685 (1987-05-01), Wiewiorowski
patent: 4670229 (1987-06-01), Wiewiorowski et al.
E. Wiewiorowski, R. Tinnin, R. Crnojevich, "A Cyclic Process for Recovery of Metals from Spent Catalysts," Society of Mining Engineers, Preprint No. 88-168, Jan. 25-28, 1988, pp. 1-9.
A. L. Kohl, F. C. Riesenfeld, "Liquid Phase Oxidation Processes for Hydrogen Sulfide Removal," Gas Purification, Fourth Edition, Gulf Publishing Company, 1985, pp. 521-539.
J. T. Tallon, R. W. Rittmeyer, E. D. Maruhnich, "Analysis of Options for Management of Spent Stretford Solution," Work performed for the U.S. Department of Energy under Contract No. DE-AC21-82MC19392, DOE/MC19392-1721, Jun. 1984, pp. 1-94.

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