Title:
PRODUCTION OF HIGH-PERFORMANCE PHOSPHORIC ACID-TYPE CHELATE CATION EXCHANGE RESIN
Document Type and Number:
Japanese Patent JPH0753634
Kind Code:
A
Abstract:
PURPOSE: To obtain the subject ion exchange resin having both specified phosphorus content and cation exchange capacity, capable of selectively adsorbing lithium ion, excellent in highly selective adsorptivity, thus useful as a solid catalyst, etc., by reaction of a specific crosslinked copolymer with phosphoric acid at a specified temperature.
CONSTITUTION: A crosslinked copolymer mainly consisting of (α-carbon- substituted) acrylic glycidyl ester and allyl glycidyl ether is directly reacted with phosphoric acid either in an open system or suction system at 100-160°C to obtain the objective ion exchange resin having 7-15wt.% phosphorus content and 5-10meq./g cation exchange capacity.
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Inventors:
EGAWA HIROAKI
Application Number:
JP23259293A
Publication Date:
February 28, 1995
Filing Date:
August 11, 1993
Export Citation:
Assignee:
EGAWA HIROAKI
International Classes:
B01J45/00; C08F8/40; C08F16/14; C08F20/32; C08F216/14; C08F220/32; (IPC1-7): C08F8/40; B01J45/00
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