Removal of phosphine from phosphine-contaminated carbon monoxide

Details Removal of phosphine from phosphine-contaminated carbon monoxide Removal of phosphine from phosphine-contaminated carbon monoxide

1977-12-14

1979-11-20

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

423317, 423322, 423415A, 423648R, B01D 5334

Patent

active

041751116

ABSTRACT:
Off gases from electric furnace production of phosphorus, consisting essentially of carbon monoxide and phosphine, are heated to 700.degree.-800.degree. C. to decompose the phosphine to red phosphorus and hydrogen; the red phosphorus is separated from the gas--most desirably by passing the gas through aqueous hydrogen peroxide which oxidizes the phosphorus to phosphoric acid,--to obtain a clean gas which can be used as a fuel.

REFERENCES:
patent: 1848295 (1932-03-01), Ipatiew
Van Wazer, "Phosphorus and Its Compounds", Interscience Publishers, Inc., N.Y., vol. I, 1958, pp. 188-189.
Schumb et al., "Hydrogen Peroxide", Reinhold Publishing Co., New York, N. Y., 1955, pp. 400 & 401.

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