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    • 89. 发明专利
    • METHOD FOR PREPARING ION-EXCHANGE RESIN AND REGENERATION METHOD
    • JP2001293380A
    • 2001-10-23
    • JP2000112185
    • 2000-04-13
    • ITO EN LTD
    • TAKIHARA TAKANORISATO TAKASHI
    • A23L19/00A23L2/78B01J41/04B01J49/00
    • PROBLEM TO BE SOLVED: To prepare an ion-exchange resin, which absorbs and removes a group of a specific substance A, and avoids the adsorption-removal of specific two kinds of substances B and C. SOLUTION: An ion-exchange resin capable of adsorbing a group of the substance A is brought into contact with a solution in which the substances B and C are dissolved, and the substances B and C are ion-bonded with each other in 'a simultaneous bonding process'. An ion-exchange resin capable of adsorbing the group of the substance A is brought into contact with a solution of the substance B to prepare an ion-exchange resin bonded with the substance B, on the other hand, an ion-exchange resin capable of adsorbing the group of the substance A is brought into contact with the solution of the substance C to prepare an ion-exchange resin bonded with the substance C, and they are mixed at an appropriate ratio in 'a mixing process'. An ion-exchange resin capable of adsorbing the group of the substance A is brought into contact with a solution of the substance B and then with a solution of the substance C, and a homogenization treatment is carried out in 'a sequential bonding process'.