Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
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.
Bradshaw Jerald S.
Bruening Ronald L.
Izatt Reed M.
Tarbet Bryon J.
Brigham Young University
Garvin Patrick P.
Peebles Brent M.
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