Verdampfung von Flüssigsauerstoff zwecks verbesserter Argonrückgewinnung

摘要

The present invention relates to an improvement for the production of argon from cryogenic air separation processes. In particular, the improvement comprises satisfying a portion of the the crude argon column condensing duty with refrigeration (128) provided from the vaporization of a portion (159) of the liquid oxygen from the bottom of the low pressure column (119).