Process for removal of arsine impurities from gases containing a

Details Process for removal of arsine impurities from gases containing a Process for removal of arsine impurities from gases containing a

1985-03-25

1986-06-03

Metz, Andrew H.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

585845, 585868, 208 49, 208 97, 208212, 208253, 423210, C07C 712, C01B 300, C10G 6506, C10G 6106

Patent

active

045931488

ABSTRACT:
Arsines are removed from gaseous stream, e.g., hydrocarbon or inert gas streams, comprising arsine impurities and also hydrogen sulfide, by contacting these gas streams with a sorbent material comprising copper oxide and zinc oxide. Preferably, the sorbent material is prepared by coprecipitating of hydroxides of copper and zinc and subsequent heating the hydroxides so as to convert the hydroxides to CuO and ZnO. Optionally, aluminum oxide is also present in the sorbent material.

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"Comprehensive Inorganic Chemistry", vol. 3, by J. C. Bailar et al., Pergamon Press, 1973, pp. 219, 232.
"Girdler Catalysts", Girdler Chemical, Inc., 1977, pp. 8, 17 and 20.

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