Improved solventless sulfonation of exchange resins

A process for the preparation of styrene-divinylbenzene gel cationic exchange resins by sulfonation in sulfuric acid, without the addition of a swelling agent or acrylic co-monomers, with relatively fast hydration rate. The use of temperature and acid concentration to increase the rate of sulfonatio...

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1. Verfasser:	TEGEN MARVIN H.,TESCH RANDY S.,HARRIS WILLIAM I
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP
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creator	TEGEN MARVIN H.,TESCH RANDY S.,HARRIS WILLIAM I
description	A process for the preparation of styrene-divinylbenzene gel cationic exchange resins by sulfonation in sulfuric acid, without the addition of a swelling agent or acrylic co-monomers, with relatively fast hydration rate. The use of temperature and acid concentration to increase the rate of sulfonation while controlling the side reaction of sulfone bridging minimizes reaction time while maximizing bead quality.
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subjects	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP
title	Improved solventless sulfonation of exchange resins
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