| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a means for selectively extracting indium or gallium from a solution containing indium, gallium and zinc, or a means for selectively extracting cobalt or nickel from a solution containing cobalt and nickel. <P>SOLUTION: There is provided a compound represented by formula I (in formula, each of R<SP POS="POST">1</SP>and R<SP POS="POST">2</SP>is mutually independently a substituted or non-substituted, straight chain or branched chain 1-18C alkyl, 2-18C alkenyl or 2-18C alkynyl, or a substituted or non-substituted, straight chain or branched chain 7-18C arylalkyl, or 8-18C arylalkenyl, and each of R<SP POS="POST">3</SP>and R<SP POS="POST">4</SP>is mutually independently hydrogen, a substituted or non-substituted, straight chain or branched chain 1-4C alkyl, 2-4C alkenyl, or 2-4C alkynyl, or a substituted or non-substituted, straight chain or branched chain 7-18C arylalkyl, or 8-18C arylalkenyl). <P>COPYRIGHT: (C)2012,JPO&INPIT |
