Process for preparing gel-type cation exchangers

The invention relates to a process for preparing strongly acidic gel-type cation exchangers of high stability by sulfonation, without a swelling agent, of (meth)acrylic ester-containing bead polymers. The invention relates to a process for preparing gel-type cation exchangers of high stability by su...

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Main Authors Dimotsis, George L, Podszun, Wolfgang, Klipper, Reinhold
Format Patent
LanguageEnglish
Published 15.06.2004
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Abstract The invention relates to a process for preparing strongly acidic gel-type cation exchangers of high stability by sulfonation, without a swelling agent, of (meth)acrylic ester-containing bead polymers. The invention relates to a process for preparing gel-type cation exchangers of high stability by sulfonation of crosslinked (meth)acrylic ester-containing bead polymers with sulfuric acid having a concentration of 90 to 95% in the absence of a swelling agent.
AbstractList The invention relates to a process for preparing strongly acidic gel-type cation exchangers of high stability by sulfonation, without a swelling agent, of (meth)acrylic ester-containing bead polymers. The invention relates to a process for preparing gel-type cation exchangers of high stability by sulfonation of crosslinked (meth)acrylic ester-containing bead polymers with sulfuric acid having a concentration of 90 to 95% in the absence of a swelling agent.
Author Klipper, Reinhold
Dimotsis, George L
Podszun, Wolfgang
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Bayer Aktiengesellschaft
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References Vaseen (4258700) 19810300
Cameron (5277247) 19940100
Bachmann et al. (6228896) 20010500
Uozumi (6492271) 20021200
Podszun et al. (2002/0153323) 20021000
(997290) 19750700
Klipper et al. (2002/0022671) 20020200
Van Vlahakis (5429764) 19950700
Harris (4564644) 19860100
(1233143) 19670100
(1227431) 19661000
Podzun (6365683) 20020400
Misaka et al. (4500652) 19850200
Rao (4483357) 19841100
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Snippet The invention relates to a process for preparing strongly acidic gel-type cation exchangers of high stability by sulfonation, without a swelling agent, of...
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