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Title: TREATMENT FOR IMPROVING THE OPERATION OF STRONG BASE ANION EXCHANGE RESINS

Abstract

A process is offered for improving quaternary ammonium type strongly basic anion exchange resins so that centain zinc and cadmium residues, which normally stick to and "poison" this type of resin, can be removed by elution. Specifically, the resin as obtained commercially is treated with an aqueous solution of sodium hydroxide of about 1 to 4 M concentration by heating therein and periodically adding small amounts of oxidizing agent selected from hydrogen peroxide, sodium peroxide and hypochlorite. Zinc and cadmium values may then be adsorbed onto the resin from a 0.1 to 3 M HCl and thereafter eluted therefrom with very dilute HCl solutions.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4118619
Patent Number(s):
2962351
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-15-007271
NSA Number:
NSA-15-007271
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ADSORPTION; ANIONS; CADMIUM; ELUTION; GRAIN SIZE; HEATING; HYDROCHLORIC ACID; HYDROGEN PEROXIDES; HYPOCHLORIC ACID; ION EXCHANGE; LIQUIDS; OXIDES; PEROXIDES; POWDERS; RESIDUES; RESINS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SODIUM HYDROXIDES; SODIUM OXIDES; SOLUTIONS; WATER; ZINC

Citation Formats

Stevenson, P.C. TREATMENT FOR IMPROVING THE OPERATION OF STRONG BASE ANION EXCHANGE RESINS. United States: N. p., 1960. Web.
Stevenson, P.C. TREATMENT FOR IMPROVING THE OPERATION OF STRONG BASE ANION EXCHANGE RESINS. United States.
Stevenson, P.C. Tue . "TREATMENT FOR IMPROVING THE OPERATION OF STRONG BASE ANION EXCHANGE RESINS". United States.
@article{osti_4118619,
title = {TREATMENT FOR IMPROVING THE OPERATION OF STRONG BASE ANION EXCHANGE RESINS},
author = {Stevenson, P.C.},
abstractNote = {A process is offered for improving quaternary ammonium type strongly basic anion exchange resins so that centain zinc and cadmium residues, which normally stick to and "poison" this type of resin, can be removed by elution. Specifically, the resin as obtained commercially is treated with an aqueous solution of sodium hydroxide of about 1 to 4 M concentration by heating therein and periodically adding small amounts of oxidizing agent selected from hydrogen peroxide, sodium peroxide and hypochlorite. Zinc and cadmium values may then be adsorbed onto the resin from a 0.1 to 3 M HCl and thereafter eluted therefrom with very dilute HCl solutions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {11}
}