A method for purifying of crude argon is disclosed. Trace amounts of oxygen are removed by ultra-fine iron powder adsorbent, which was prepared by attrition milling of metallic iron powder, iron oxide and subsequent reduction or thermal decomposition of certain iron salts as iron citrate etc.
申请公布号
WO0240135(A1)
申请公布日期
2002.05.23
申请号
WO2001US43050
申请日期
2001.11.09
申请人
UB FOUNDATION SERVICES, INC. A NOT-FOR PROFIT, EDUCATIONAL CORPORATION OF THE STATE OF NEW YORK;PRAXAIR TECHNOLOGY, INC.
