Preparation and use of sorptive lignocellulosic material for...

Details Preparation and use of sorptive lignocellulosic material for... Preparation and use of sorptive lignocellulosic material for...

2005-12-20

2008-08-19

Barry, Chester T (Department: 1797)

Liquid purification or separation

Processes

Ion exchange or selective sorption

C210S693000, C536S064000, C008S129000, C502S404000

Reexamination Certificate

active

07413662

ABSTRACT:
A modified sorptive lignocellulosic fibre material with hydroxyl groups on the lignocellulosic 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 sorption of hydrophobic contaminants and ion exchange.

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