发明名称 |
CRYOGENIC RECTIFICATION METHOD FOR PRODUCING REFINED ARGON |
摘要 |
A cryogenic rectification method employing rectification over a defined height within the lower pressure column of a double column system which reduces the nitrogen concentration of an argon, nitrogen, oxygen mixture while maintaining the argon concentration at or near its maximum enabling production of nitrogen-free argon directly from the argon column system.
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申请公布号 |
CA2072179(C) |
申请公布日期 |
1996.11.12 |
申请号 |
CA19922072179 |
申请日期 |
1992.06.23 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
BIANCHI, JOHN RICHARD;BONAQUIST, DANTE PATRICK;VICTOR, RICHARD AMORY |
分类号 |
F25J3/04;(IPC1-7):F25J3/02 |
主分类号 |
F25J3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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