Published January 14, 1997 | Version v1
Patent Metadata-only

Adsorbent for Sr ion

Creators

Description

Tetravalent metal phosphate represented by the chemical formula: Hx M2-x1M2(PO4)2·nH2O (wherein M1 represents at least one cation selected from Li, Na, K and NH4, M2 represents at least one tetravalent metal ion selected from the group consisting of Zr, Ti and Sn, x is a number of 0 or greater but not greater than 1.8, and n is a number of 0 or greater but not greater than 8) is used as a Sr ion adsorbent. The adsorbent exhibits excellent Sr ion adsorbing performance in an aqueous solution in which alkaline earth metal ions are coexistent. The adsorbent is effective for processing Si ion-containing liquid wastes discharged from nuclear power facilities such as a nuclear fuel reprocessing plant. (T.M.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
8 p.
IPC:
Int. Cl. B01J20/04; G21F9/12.
IPC
Int. Cl. B01J20/04; G21F9/12.
Patent number
JP patent document 9-10580/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
28040755
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ADSORBENTS; ALKALINE EARTH METALS; AQUEOUS SOLUTIONS; BINDERS; GRANULAR MATERIALS; PHOSPHATES; SILICATE MINERALS; SINTERING; SORPTIVE PROPERTIES; STRONTIUM IONS; VALENCE
Descriptors DEC
CHARGED PARTICLES; DISPERSIONS; ELEMENTS; FABRICATION; HOMOGENEOUS MIXTURES; IONS; MATERIALS; METALS; MINERALS; MIXTURES; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; SOLUTIONS; SURFACE PROPERTIES

Optional Information

Secondary number(s)
JP patent application 7-186442.