Title:
METHOD FOR OPERATION OF ION EXCHANGER, AND ION EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2011/141953
Kind Code:
A1
Abstract:
Provided is a method for the operation of an ion exchanger, which overcomes the problems of split-flow regeneration and can attain a higher yield. The method comprises a regeneration process that includes a first regeneration process and a second regeneration process conducted after the completion of the first regeneration process. In the first regeneration process, a regenerant (5) is distributed at the top (8) of an ion-exchange resin bed (2) and collected at the bottom (9) of the ion-exchange resin bed (2), whereby a downflow of the regenerant (5) is formed to regenerate the whole of the ion exchange resin bed (2). In the second regeneration process, a regenerant (5) is distributed at the bottom (10) of the ion-exchange resin bed (2) and collected in an intermediate zone (11) of the ion-exchange resin bed (2), whereby an upflow of the regenerant (5) is formed to regenerate part of the ion-exchange resin bed (2). The intermediate zone (11) wherein the regenerant (5) is collected in the second regeneration process is located at a depth of at least 100mm from the bottom (10) of the ion-exchange resin bed (2).
Inventors:
HIRAO, Masaaki (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
平尾匡章 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
NAKAMURA, Saburo (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
中村三郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
TESHIMA, Shinichiro (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
手嶋慎一郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
平尾匡章 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
NAKAMURA, Saburo (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
中村三郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
TESHIMA, Shinichiro (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
手嶋慎一郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
Application Number:
JP2010/003179
Publication Date:
November 17, 2011
Filing Date:
May 10, 2010
Export Citation:
Assignee:
MIURA CO., LTD. (7 Horie-cho, Matsuyama-shi Ehime, 96, 〒7992696, JP)
三浦工業株式会社 (〒96 愛媛県松山市堀江町７番地 Ehime, 〒7992696, JP)
HIRAO, Masaaki (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
平尾匡章 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
NAKAMURA, Saburo (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
中村三郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
TESHIMA, Shinichiro (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
三浦工業株式会社 (〒96 愛媛県松山市堀江町７番地 Ehime, 〒7992696, JP)
HIRAO, Masaaki (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
平尾匡章 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
NAKAMURA, Saburo (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
中村三郎 (〒96 愛媛県松山市堀江町７番地三浦工業株式会社内 Ehime, 〒7992696, JP)
TESHIMA, Shinichiro (7, Horie-cho, Matsuyama-sh, Ehime 96, 〒7992696, JP)
International Classes:
C02F1/42; B01J49/00
Claims: