- 专利标题： VERFAHREN ZUR REGENERIERUNG EINES FILTERHILFSMITTELS
- 专利标题（英）： Method for regenerating a filter aid
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申请号： EP08717868.7申请日： 2008-03-14
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公开(公告)号： EP2136913A1公开(公告)日： 2009-12-30
- 发明人: MEFFERT, Helmut , PIEROBON, Marianna , PETSCH, Tobias , BRODERSEN, Julia , FEISE, Hermann Josef , ERK, Ates , KRESS, Jörg , MAR, Ralf , LACHMUTH, Ralf , BAYER, Robert
- 申请人： BASF SE
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： 67056 Ludwigshafen DE
- 优先权： EP07104260 20070315
- 国际公布： WO2008110632 20080918
- 主分类号： B01J20/34
- IPC分类号： B01J20/34 ; B01D41/02 ; C12H1/04
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.
公开/授权文献
- EP2136913B1 VERFAHREN ZUR REGENERIERUNG EINES FILTERHILFSMITTELS 公开/授权日：2018-04-25
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