B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/22 (2006.01) B01D 17/02 (2006.01) B01J 20/30 (2006.01) C08B 3/20 (2006.01) D06M 13/188 (2006.01) D06M 13/192 (2006.01) D21C 9/00 (2006.01) D21H 13/06 (2006.01) D21H 17/14 (2006.01)
Patent
CA 2591985
A modified sorptive lignocellulosic fibre material with hydroxyl groups on the lignocellu~losic fibres doubly modified by esterification with a combination of monocarboxylic and dicarboxylic acid ester groups. A process for the preparation of the sorptive material. The sorptive fibre material is effective for the removal of oils and other contaminants including heavy metals from a fluid such as contaminated water by a combined sorp~tion of hydrophobic contaminants and ion exchange.
L'invention concerne un matériau fibreux lignocellulosique modifié et sorbant comprenant des groupes hydroxyl sur les fibres lignocellulosiques doublement modifiées par estérification au moyen d'une combinaison de groupes d'ester d'acide monocarboxylique et dicarboxylique. L'invention concerne également un procédé de préparation du matériau sorbant. Le matériau fibreux sorbant est efficace pour éliminer des huiles et d'autres contaminants, notamment des métaux lourds provenant d'un fluide, tel que de l'eau contaminée par une soprtion combinée de contaminants hydrophobes et d'échange d'ions.
Eriksen Per Berre
Larsen Peter
Lawther John Mark
Danish Plant Fibre Technologies Holding A/s
Marks & Clerk
LandOfFree
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