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:
- OSTI Identifier:
- 4118619
- Patent Number(s):
- 2962351
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- 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}
}
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