Method for recovering argon as contained in the blowing...

Details Method for recovering argon as contained in the blowing... Method for recovering argon as contained in the blowing...

B - Operations, Transporting

01

D

39/17, 23/355

B01D 53/34 (2006.01) C01B 23/00 (2006.01) C21C 5/38 (2006.01)

Patent

CA 1073188

ABSTRACT OF THE DISCLOSURE. In order to recover the costly gas argon from the ex- hausts of an AOD converter as used in refining stainless steels, a method is disclosed which provides at least one gas blanket around the exhaust gas stream. The blanketing gas is preferably carbon dioxide, but also argon itself and steam, or their mixtures, can be used, it being re- quired that the blanketing gas be easily separable from argon in order to recover the latter and to recycle it. Scrubbing and purification stages can also be additionally provided.

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