Title:
A separation regeneration method of Mixed bed ion-exchange resin
Document Type and Number:
Japanese Patent JP6089888
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently separate and reproduce a mixed bed ion exchange resin without increasing the amount of reproducing chemicals, needing specific arrangement or operation, further generating problems of odor and the like.SOLUTION: There is provided a method of separating and reproducing an ion exchange resin forming a mixed bed including bringing the ion exchange resin as a mixture condition into contact with ammonium hydrogen carbonate, then separating it into a cationic ion exchange resin layer and an anionic ion exchange resin layer by back washing, and bringing the respective resin layers into contact with a regenerant to reproduce.
Inventors:
Tsuneyasu Adachi
Application Number:
JP2013074164A
Publication Date:
March 08, 2017
Filing Date:
March 29, 2013
Export Citation:
Assignee:
Kurita Water Industries Ltd.
International Classes:
B01J49/09; B01J49/53; B01J49/57; B01J49/60; C02F1/42
Domestic Patent References:
| JP9099244A | ||||
| JP10128128A | ||||
| JP62269756A | ||||
| JP51018981A | ||||
| JP2002263506A | ||||
| JP2006089371A |
Attorney, Agent or Firm:
Tsuyoshi Shigeno