Polytetraalkylammonium and polytrialkylamine-containing ligands

Details Polytetraalkylammonium and polytrialkylamine-containing ligands Polytetraalkylammonium and polytrialkylamine-containing ligands

1992-02-12

1993-09-14

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502164, 502167, 502401, B01J 3100

Patent

active

052448568

ABSTRACT:
A method for the removal and concentration of desired ions from a source solution which may contain larger concentrations of other ions including H.sup.+ comprises bringing the source solution into contact with a compound comprising a polytetraalkylammonium and/or polytrialkylamine-containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The polytetraalkylammonium and/or polytrialkylamine portion(s) of the compound has an affinity for the desired ions to form a complex thereby removing the desired ions from the source solution. The desired ions are removed from the compound by contacting the compound with a much smaller volume of a receiving solution having a greater affinity for the desired ions than does the polytetraalkylammonium and/or polytrialkylamine ligand portion of the compound. The concentrated ions thus removed may be recovered by known methods. The process is useful in removing desired or unwanted ions from water streams and in the treatment of waste streams. The invention is also drawn to the polytetraalkylammonium and polytrialkylamine-containing ligands covalently bonded through a spacer grouping to a hydrophilic inorganic solid support material.

REFERENCES:
patent: 5039419 (1991-08-01), Bradshaw et al.

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