Use of cyclodextrins for odor control in papermaking...

Details Use of cyclodextrins for odor control in papermaking... Use of cyclodextrins for odor control in papermaking...

D - Textiles, Paper

21

C

D21C 11/08 (2006.01) C02F 11/00 (2006.01) D21H 23/78 (2006.01)

Patent

CA 2692413

Methods to control and suppress odor in papermaking sludge are described. One method Involves admixing sludge from a papermaking process and cyclodextrin to provide treated sludge with the cyclodextrin present in an effective amount to control odors in the treated sludge. The deodorized sludge may be used as a component of resin-wood composite products, such as composite decking materials, walls, flooring, casting forms, and the like.

L'invention concerne des procédés pour contrôler et éliminer les odeurs dans une boue issue de la fabrication de papier. Un procédé consiste à ajouter à la boue issue d'un processus de fabrication de papier de la cyclodextrine pour produire une boue traitée, la cyclodextrine étant présente dans une quantité efficace permettant de contrôler les odeurs dans la boue traitée. La boue désodorisée peut être utilisée comme composant dans des produits composites à base de résine et de bois, tels que des matériaux composites de platelage, des parois, des revêtements de sol, des moules et similaire.

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