Method for cleaning exhaust gases

Details Method for cleaning exhaust gases Method for cleaning exhaust gases

1985-03-13

1988-05-10

Doll, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

B01D 5334

Patent

active

047434350

ABSTRACT:
A method for cleaning an exhaust gas containing at least one toxic component selected from the group consisting of arsine, phosphine, diborane and hydrogen selenide is disclosed. The method comprises contacting the toxic component with a molded cleaning agent having a composition consisting essentially of (1) cupric oxide and (2) at least one metal oxide selected from the group consisting of silicon oxide, aluminum oxide and zinc oxide and having a density of from about 1.5 to about 3.5 g/ml, said composition having a metal atomic ratio M/(M+Cu) in the range of from about 0.02 to about 0.7 wherein Cu represents a number of gram atom of copper and M represents a total number of gram atom of silicon, aluminum and/or zinc, to remove the toxic component from the exhaust gas.

REFERENCES:
patent: 1519470 (1924-12-01), Wilson et al.
patent: 2747968 (1956-05-01), Pigache
patent: 3812653 (1974-05-01), Massoth et al.
patent: 4532115 (1985-07-01), Nishino et al.
Chemistry, John C. Bailar, Jr. et al., Academic Press. Inc., 1978, p. 765.
A Comprehensive Treatise on Inorganic and Theoretical Chemistry, J. W. Mellor, vol. III, pp. 102, 132, Longmans, Green and Co. 1946.
Chemical Abstract, vol. 95:208,869j (1981).

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