Phenolic cation exchange resin material for recovery of cesium and strontium
Creators
Description
A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of both cesium and strontium from aqueous alkaline solutions, such as, aqueous alkaline nuclear waste solutions. The organic resins are condensation polymers of resorcinol and formaldehyde with attached chelating groups. The column performance of the resins compares favorably with that of commercially available resins for either cesium or strontium removal. By combining Cs+ and Sr2+ removal in the same bed, the resins allow significant reduction of the size and complexity of facilities for processing nuclear waste
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl. B01J 39/18.
- IPC
- Int. Cl. B01J 39/18.
- Patent number
- US patent document 4,423,159/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16007297
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ACETIC ACID; AQUEOUS SOLUTIONS; CESIUM; CHELATING AGENTS; CHEMICAL PREPARATION; FORMALDEHYDE; ION EXCHANGE; ION EXCHANGE MATERIALS; POLYMERIZATION; POLYMERS; RADIOACTIVE WASTE FACILITIES; RADIOACTIVE WASTE PROCESSING; RESINS; STRONTIUM
- Descriptors DEC
- ALDEHYDES; ALKALI METALS; ALKALINE EARTH METALS; CARBOXYLIC ACIDS; CHEMICAL REACTIONS; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; MANAGEMENT; MATERIALS; METALS; MIXTURES; MONOCARBOXYLIC ACIDS; NUCLEAR FACILITIES; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; SOLUTIONS; SYNTHESIS; WASTE MANAGEMENT; WASTE PROCESSING
Optional Information
- Notes
- PAT-APPL-375232.