Preparation and use of sorptive lignocellulosic material for decontamination of fluid and aqueous media
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United States of America Patent
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Aug 19, 2008
Grant Date -
Jan 24, 2008
app pub date -
Dec 20, 2005
filing date -
Dec 22, 2004
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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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