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1.发明授权
公开(公告)号：EP2066707B1
公开(公告)日：2010-07-14
申请号：EP07803353.7
申请日：2007-09-10
申请人： BASF SE
摘要： Method for the removal of residual styrene monomers from polystyrene and from co-extrudates comprising crosslinked polyvinylpyrrolidone which is not soluble in water, characterized in that an aqueous suspension of the particulate solid co-extrudate is subjected to heat treatment at temperatures from 60 to 99°C, where the ratio by weight of solid co-extrudate to water in the suspension is from 1:1.5 to 1:20, and the concentration of the suspension is held constant during the treatment.
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公开(公告)号：EP2077913A1
公开(公告)日：2009-07-15
申请号：EP07820667.9
申请日：2007-09-27
申请人： BASF SE
发明人： MEFFERT, Helmut , PIEROBON, Marianna , PETSCH, Tobias , BRODERSEN, Julia , FEISE, Hermann Josef , ERK, Ates , KRESS, Jörg , MAR, Ralf , BAYER, Robert
CPC分类号： C12H1/0424 , B01D39/04 , B01D41/02 , B01J20/264 , B01J20/3425 , B01J20/3475
摘要： Method for regenerating an auxiliary filtering agent, representing a co-extrudate of water insoluble polyvinyl pyrrolidone and thermoplastic polymers, by treatment with aqueous lye and with enzymes, wherein the auxiliary filtering agent is first subjected to a treatment with aqueous lye. A treatment with an enzyme solution follows. A further treatment with aqueous lye follows, and, if necessary, a treatment with a surfactant is carried out.
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公开(公告)号：EP2077913B1
公开(公告)日：2013-01-02
申请号：EP07820667.9
申请日：2007-09-27
申请人： BASF SE
发明人： MEFFERT, Helmut , PIEROBON, Marianna , PETSCH, Tobias , BRODERSEN, Julia , FEISE, Hermann Josef , ERK, Ates , KRESS, Jörg , MAR, Ralf , BAYER, Robert
CPC分类号： C12H1/0424 , B01D39/04 , B01D41/02 , B01J20/264 , B01J20/3425 , B01J20/3475
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公开(公告)号：EP2136913B1
公开(公告)日：2018-04-25
申请号：EP08717868.7
申请日：2008-03-14
申请人： BASF SE
发明人： MEFFERT, Helmut , PIEROBON, Marianna , PETSCH, Tobias , BRODERSEN, Julia , FEISE, Hermann Josef , ERK, Ates , KRESS, Jörg , MAR, Ralf , LACHMUTH, Ralf , BAYER, Robert
CPC分类号： B01D41/02 , B01J20/08 , B01J20/106 , B01J20/14 , B01J20/24 , B01J20/3425 , B01J20/3433 , B01J20/3475 , B01J2220/4825 , B01J2220/4831
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公开(公告)号：EP2136913A1
公开(公告)日：2009-12-30
申请号：EP08717868.7
申请日：2008-03-14
申请人： BASF SE
发明人： MEFFERT, Helmut , PIEROBON, Marianna , PETSCH, Tobias , BRODERSEN, Julia , FEISE, Hermann Josef , ERK, Ates , KRESS, Jörg , MAR, Ralf , LACHMUTH, Ralf , BAYER, Robert
CPC分类号： B01D41/02 , B01J20/08 , B01J20/106 , B01J20/14 , B01J20/24 , B01J20/3425 , B01J20/3433 , B01J20/3475 , B01J2220/4825 , B01J2220/4831
摘要： The invention relates to a method for regenerating inorganic, natural and semisynthetic filter aids, said method being characterised in that the filter aid undergoes a first treatment with aqueous lye, a treatment with enzymes is carried out, a treatment with a surfactant is carried out, and a second treatment with aqueous lye is carried out. The invention also relates to a regenerated material providing the regenerated filter aid with a filter and/or washing resistance of of less than 10x1012mPa s/m2.
摘要翻译： 本发明涉及一种用于再生无机，天然和半合成助滤剂的方法，所述方法的特征在于，所述助滤剂用含水碱液进行第一次处理，进行酶处理，用表面活性剂处理， 并用含水碱液进行第二次处理。 本发明还涉及为再生过滤助剂提供小于10×10 12 mPa s / m 2的过滤器和/或耐洗涤性的再生材料。
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6.发明公开
公开(公告)号：EP2066707A1
公开(公告)日：2009-06-10
申请号：EP07803353.7
申请日：2007-09-10
申请人： BASF SE
IPC分类号： C08F6/00
摘要： Method for the removal of residual styrene monomers from polystyrene and from co-extrudates comprising crosslinked polyvinylpyrrolidone which is not soluble in water, characterized in that an aqueous suspension of the particulate solid co-extrudate is subjected to heat treatment at temperatures from 60 to 99°C, where the ratio by weight of solid co-extrudate to water in the suspension is from 1:1.5 to 1:20, and the concentration of the suspension is held constant during the treatment.
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