发明授权
- 专利标题： Method of separating yttrium ions
- 专利标题（中）： 分离钇离子的方法
-
申请号： US949010申请日： 1978-10-06
-
公开(公告)号： US4201747A公开(公告)日： 1980-05-06
- 发明人: Yukinori Minagawa , Tsugio Kaneko , Kunihiko Yamaguchi
- 申请人： Yukinori Minagawa , Tsugio Kaneko , Kunihiko Yamaguchi
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Chemical Industries Ltd.
- 当前专利权人： Mitsubishi Chemical Industries Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX52-121740 19771011; JPX53-46094 19780419
- 主分类号： C22B3/38
- IPC分类号： C22B3/38 ; C22B3/40 ; C22B59/00 ; C01F17/00
摘要：
Yttrium ions are selectively separated by extracting the yttrium ions by contacting an aqueous solution containing hydroxyethyl ethylenediaminetriacetic acid, yttrium ions and lanthanide ions with an extracting solvent containing tributyl phosphate and an acid phosphoric ester having the formula ##STR1## wherein R.sup.1 represents hydrogen atom or an alkyl group having the formula ##STR2## wherein n is an integer of 6 to 15 and m is n-1 or n-2; and R.sup.2 represents an alkyl group having the formula ##STR3## wherein n is an integer of 6 to 15 and m is n-1 or n-2.
公开/授权文献
- USD350160S Game board 公开/授权日：1994-08-30