Published January 6, 1993 | Version v1
Patent Metadata-only

Combined transuranic-strontium extraction process

Creators

Description

The transuranic (TRU) elements neptunium, plutonium and americium can be separated together with strontium from nitric acid waste solutions in a single process. An extractant solution of a crown ether and an alkyl (phenyl)-N.N-dialkylcarbanylmethylphosphine oxide in an appropriate diluent will extract the TRU's to gather with strontium, uranium and technetium. The TRU's and the strontium can then be selectively stripped from the extractant for disposal. (Author)

Availability note (English)

Available from The Patent Office, Sales Branch, Unit 6, Nine Mile Point, Cwmfelinfach, Cross Keys, Newport, NP1 7HZ.

Additional details

Publishing Information

Imprint Pagination
37 p.
IPC:
Int. Cl. G21f 9/12.
IPC
Int. Cl. G21f 9/12.
Patent number
GB patent document 2257292/A/

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
24057454
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
AMERICIUM; AQUEOUS SOLUTIONS; CROWN ETHERS; NEPTUNIUM; NITRIC ACID; PHOSPHINE OXIDES; PLUTONIUM; RADIOACTIVE WASTE PROCESSING; SOLVENT EXTRACTION; STRONTIUM
Descriptors DEC
ACTINIDES; ALKALINE EARTH METALS; DISPERSIONS; ELEMENTS; ETHERS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MANAGEMENT; METALS; MIXTURES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SOLUTIONS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS; WASTE MANAGEMENT; WASTE PROCESSING

Optional Information

Secondary number(s)
US priority 717426.