Title:
METHOD OF SUPPRESSING FORMATION OF NITROSOAMINE IN ANION EXCHANGE RESIN
Document Type and Number:
Japanese Patent JP2015013286
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of eliminating or reducing the need of cleaning with water before use of an anion exchange resin.SOLUTION: A method of suppressing formation of nitrosoamine on an anion exchange resin comprises preparing an anion exchange resin including a nitrosation agent and mixing the anion exchange resin with a cation exchange resin and includes adding the cation exchange resin to the anon exchange resin in a weight ratio of the anon exchange resin to the cation exchange resin of 100:1 or higher. The anion exchange resin contains a phenol-formaldehyde cross-linked polycondensate and at least one of methylamine, trimethylamine, tripropylamine, etc., and the cation exchange resin contains one or more polymers selected from sulfonated polymers of styrene, ethylstyrene and/or divinylbenzene, sulfonated divinylbenzene/styrene copolymer, acrylic copolymers, divinylbenzene cross-linked polyacrylate polymers, etc.
Inventors:
EICHER CHRIS RAYMOND
GISCH DARYL JOHN
HARLAN ROBERT GOLTZ
GISCH DARYL JOHN
HARLAN ROBERT GOLTZ
Application Number:
JP2014165085A
Publication Date:
January 22, 2015
Filing Date:
August 14, 2014
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC
International Classes:
B01J47/00; B01J39/20; B01J41/12; C08J3/20
Domestic Patent References:
| JP2010519018A | 2010-06-03 |
Attorney, Agent or Firm:
Patent business corporation センダ international patent firm
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