Porous substances having ion exchange properties
AssigneeRhone-Progil
InventorFrancois Meiller
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Abstract
An ion exchange substance formed of a porous mineral support having a specific surface area greater than 10 sq.m/g and an organo silicon compound containing at least one amine group in an organic group attached to the silicon atom grafted onto the porous mineral support via the silicon atom of the organo silicon compound and an oxygen group on the support and in which the terminal radicals on the amino group are alkyl groups having from 1 to 3 carbon atoms. SPECIFICATION
Claims9
Porous substances having anionic ion exchanger properties consisting essentially of a porous mineral support, the surfaces of which have free hydroxyl groups, and at least one organo silicon compound grafted onto the porous mineral support by reaction with hydroxyl groups on the support, in which the organo silicon compound has an amine function in an organic group separated from the silicon atom by at least three carbon atoms and in which the porous substance has a specific surface area greater than 10 sq.m/g.
Dependencies are inferred from the claim text.