Published July 31, 1997 | Version v1
Patent Metadata-only

Washing method for solvent in extraction of transuranium element

Creators

Description

An organic acid (for example, oxalic acid) having complexing effect is added to an aqueous Na carbonate solution for washing extraction solvent to adjust the pH of the mixed liquid to from about 9.0 to 9.5. Then, formation of a hardly separable emulsion phase can be suppressed, and the distribution ratio of Ru can be determined to about from 0.60 to 1.00, and about from 50 to 63% of Ru can be recovered to an aqueous phase. (T.M.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
7 p.
IPC:
Int. Cl. G21C19/46.
IPC
Int. Cl. G21C19/46.
Patent number
JP patent document 9-197089/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
29001051
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
EMULSIONS; ORGANIC SOLVENTS; REPROCESSING; RUTHENIUM; SEPARATION PROCESSES; SODIUM CARBONATES; SOLVENT EXTRACTION; SPENT FUELS; TRANSURANIUM ELEMENTS; WASHING
Descriptors DEC
ALKALI METAL COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CLEANING; COLLOIDS; DISPERSIONS; ELEMENTS; ENERGY SOURCES; EXTRACTION; FUELS; MATERIALS; METALS; NONAQUEOUS SOLVENTS; NUCLEAR FUELS; OXYGEN COMPOUNDS; PLATINUM METALS; REACTOR MATERIALS; SODIUM COMPOUNDS; SOLVENTS; TRANSITION ELEMENTS

Optional Information

Secondary number(s)
JP patent application 8-6256.