processo para a regeneração de um auxiliar de filtração

Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a...

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Bibliographic Details
Main Authors Helmut Meffert, Julia Brodersen, Ralf Mar, Robert Bayer, Ates Erk, Hermann Josef Feise, Jörg Kress, Marianna Pierobon, Tobias Petsch
Format Patent
LanguagePortuguese
Published 18.04.2017
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Summary:Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.
Bibliography:Application Number: BR2007PI17112