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公开(公告)号：BR0316796A
公开(公告)日：2005-11-01
申请号：BR0316796
申请日：2003-12-03
Applicant: BASF AG
Inventor： BENNETT ANDREA KAREN , CIPRIAN J RGEN , ELLIOTT MARK , EXNER KAI MICHAEL
Abstract: A process for the reduction of the concentration of methoxyhydroquinone (MEHQ) in acrylic acid that is neutralized to 75-100% comprises continuous adsorption on activated carbon. An Independent claim is included for a process for the production of superabsorbers (I) by reduction of the MEHQ content by the novel process followed by polymerization, optionally with non-neutralized acrylic acid with optionally surface cross-linking.
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