Title:
塩基性陰イオン交換樹脂の精製方法
Document Type and Number:
Japanese Patent JP4518112
Kind Code:
B2
Abstract:
To provide a basic anion exchange resin which has realized a reduction in elution of total organic carbon (TOC).
A boron-selective basic anion exchange resin is heat-treated at a temperature of 60°C or above in a solution of an alkali such as sodium hydroxide which is an alkali metal hydroxide. Thereafter, in order to remove TOC component eliminated from the ion exchange resin, the anion exchange resin is washed with a water-soluble organic solvent, which can be mixed with water at any desired ratio, such as alcohol or acetone as an organic solvent or with an aqueous solution containing the organic solvent in an amount of not less than 50 wt.%.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
Shintaro Sawada
Masao Tate
Masao Tate
Application Number:
JP2007193782A
Publication Date:
August 04, 2010
Filing Date:
July 25, 2007
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B01J49/00; B01J41/04; B01J41/14; C02F1/42
Domestic Patent References:
| JP2002102719A | ||||
| JP58174241A |