Selected chelate resins and their use to remove multivalent meta

Details Selected chelate resins and their use to remove multivalent meta Selected chelate resins and their use to remove multivalent meta

1992-06-29

1994-04-05

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528480, 528481, 528486, 528492, 528502, 210638, 210660, 5253322, C08F 1236, C08F 608

Patent

active

053006283

ABSTRACT:
A chemically modified chelate resin comprising the reaction product of a cross-linked polymer bead chelate resin containing amine reaction sites with an aromatic aldehyde selected from the group consisting of 4-Formyl-benzo-15-Crown-5; 4-Formyl-benzo-18-Crown-6; 3,4-dihydroxybenzaldehyde; 3-ethoxy salicylaldehyde; salicylaldehyde; 2-pyridine carboxaldehyde, 3-pyridine carboxaldehyde; 4-pyridine carboxaldehyde; and pyrrole-2-carboxaldehyde.

REFERENCES:
patent: 4446283 (1984-05-01), Parker
patent: 4965167 (1990-10-01), Salamy
patent: 5073622 (1991-12-01), Wojtech et al.
Product Brochures--"Waste Water Treatment: Heavy Metal Removal and Recovery with Diaion CR-20" and Resin Choice in Removing Heavy Metals Diaion CR-10 vs. Diaion CR-20 (Dianex Systems--dated Dec., 1986 and Mar., 1987).

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