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公开(公告)号：WO2004052819A8
公开(公告)日：2005-07-07
申请号：PCT/EP0313621
申请日：2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor： BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ（甲氧基氢醌）丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是，MEHQ从部分或完全中和的丙烯酸除去。
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Patent Agency Ranking
公开(公告)号：WO2004052819A2
公开(公告)日：2004-06-24
申请号：PCT/EP0313621
申请日：2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor： BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ（甲氧基氢醌）丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是，MEHQ从部分或完全中和的丙烯酸除去。
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公开(公告)号：AU2003293754A1
公开(公告)日：2004-06-30
申请号：AU2003293754
申请日：2003-12-03
Applicant: BASF AG
Inventor： BENNETT ANDREA KAREN , CIPRIAN JURGEN , ELLIOT 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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公开(公告)号：AU2003293754A8
公开(公告)日：2004-06-30
申请号：AU2003293754
申请日：2003-12-03
Applicant: BASF AG
Inventor： ELLIOT MARK , EXNER KAI MICHAEL , BENNETT ANDREA KAREN , CIPRIAN JURGEN
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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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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公开(公告)号：DE10257397A1
公开(公告)日：2004-06-24
申请号：DE10257397
申请日：2002-12-06
Applicant: BASF AG
Inventor： BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT 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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