Chemically active ceramic compositions with a phospho-acid moiet

Details Chemically active ceramic compositions with a phospho-acid moiet Chemically active ceramic compositions with a phospho-acid moiet

1997-01-27

1997-11-25

Griffin, Walter D.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210669, 210670, 210679, 210688, B01D 1500, C02F 142

Patent

active

056908326

ABSTRACT:
Novel composite materials useful for removing heavy metal ions from solutions, such as aqueous waste streams, comprise an inorganic ceramic support, such as silica gel, having terminal hydroxy groups, to the oxygen of which a ligand is covalently bonded through a silane coupling agent, the ligand being a phosphorous or thiophosphorous based acid moiety.

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