| 摘要 |
<P>PROBLEM TO BE SOLVED: To remove cations and anions in a high temperature treatment liquid efficiently without producing impurities anew in the treatment liquid. <P>SOLUTION: A device 11 includes a cation exchanger represented by formula H<SB POS="POST">4</SB>Nb<SB POS="POST">6</SB>O<SB POS="POST">17</SB><SP POS="POST">-</SP>aH<SB POS="POST">2</SB>O(1) or formula HNbO<SB POS="POST">3</SB><SP POS="POST">-</SP>bH<SB POS="POST">2</SB>O(2) (in the formula, " a" is a number which satisfies 0≤a and " b" is a number which satisfies 0≤b). A device 12 includes an anion exchanger represented by formula L<SP POS="POST">2+</SP>x M<SP POS="POST">3</SP>+<SB POS="POST">Y</SB>(OH<SP POS="POST">-</SP>)<SB POS="POST">2</SB>x+<SB POS="POST">3Y</SB>-cH<SB POS="POST">2</SB>O(3) (in the formula, L<SP POS="POST">2+</SP>is at least one kind of divalent metallic cation selected from the group consisting of Mg<SP POS="POST">2+</SP>, Ca<SP POS="POST">2+</SP>and Zn<SP POS="POST">2+</SP>, M<SP POS="POST">3+</SP>is at least one kind of trivalent metallic cation selected from the group consisting of Fe<SP POS="POST">3+</SP>, Al<SP POS="POST">3+</SP>and Mn<SP POS="POST">3+</SP>, and X and Y are numbers which satisfy O<X, O<Y, X+Y=8 and "c" is a number which satisfies 0≤c). These devices 11 and 12 are series connected through a connecting line to constitute an ionic component removing device 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
