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OwnerGeorgy Anatolievich Golovko, Evgeny Alexandrovich Kharitonov +1inventors
InventorsGeorgy Anatolievich Golovko, Evgeny Alexandrovich Kharitonov, Jury Yakovlevich Ignatov
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A process for purification of argon from oxygen comprises the step of absorption of oxygen by passing argon through synthetic zeolites of the A type with a diameter of the entry voids from 2.8 to 4.2A. Oxygen is adsorbed under a pressure of argon of 21.38-427 p.s.i.a. Then oxygen is desorbed from zeolites by reducing the pressure from 21.38-427 p.s.i.a. to atmospheric pressure with subsequent vacuum treatment of the zeolites at a pressure of 1-10.sup.-.sup.2 mm Hg. The steps of adsorption, desorption and vacuum treatment are carried out under thermostatic treatment of zeolites with a refrigerant so that a temperature of zeolites at the adsorption stage is maintained at -186.degree. C to -133.degree. C.
A process for purification of argon from oxygen comprising the steps of adsorption of oxygen by passing argon under a pressure of 21.38-427 p.s.i.a. through synthetic zeolites of the A type having a diameter of the entry voids from 2.8 to 4.2 A, desorption of oxygen from the zeolites by reducing the pressure from 21.38-427 p.s.i.a. to atmospheric and vacuum treatment of the zeolites to a pressure of 1-10.sup..sup.-2 mmHg, said steps of adsorption, desorption and vacuum treatment being conducted under a thermostatic treatment of the zeolites with a refrigerant so that the temperature of zeolites at the adsorption stage is maintained at -186.degree. to -133.degree. C.
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