Process for removing oxygen from crude argon

Gas separation – Means within gas stream for conducting concentrate to collector

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55 68, B01D 5322, B01D 7102

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active

050357263

ABSTRACT:
A process is provided for purifying argon gas, especially an argon gas stream obtained by cryogenically separating air, wherein the argon gas is heated and compressed, and then permeated through a solid electrolyte membrane selective to the permeation of oxygen over other components of the gas, and removing oxygen from the argon by selective permeation of oxygen through the membrane. The purified argon can then be distilled to remove other components such as nitrogen.

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