Process for removing hydrogen cyanide from gaseous streams

Details Process for removing hydrogen cyanide from gaseous streams Process for removing hydrogen cyanide from gaseous streams

1980-03-31

1981-06-02

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423236, 423240, 423244, 55 68, 55 71, 55 73, 55 84, 252190, 252192, B01D 5334

Patent

active

042711339

ABSTRACT:
This invention relates to a process for reducing the hydrogen cyanide content of a gaseous stream which comprises providing an adsorbent bed wherein the adsorbent comprises zinc oxide and contains no more than 5%, by weight, of an oxide of an alkali or alkaline earth metal, and contacting said process stream with said adsorbent bed at a temperature of from about ambient to about 350.degree. C. for a period of time sufficient to reduce the concentration of hydrogen cyanide in said gaseous stream to the desired value.

REFERENCES:
patent: 2239000 (1941-04-01), Groombridge et al.
patent: 2423689 (1947-07-01), Day
patent: 3441370 (1979-04-01), Gutmann et al.
patent: 3492083 (1970-01-01), Lowicki et al.
patent: 4009009 (1977-02-01), Massoth et al.
patent: 4088736 (1978-05-01), Courty et al.
patent: 4128619 (1978-12-01), Robinson

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