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Method for chromatographically recovering scandium and yttrium

Patent ·
OSTI ID:5504149
;

This paper describes a method for chromatographically recovering scandium and yttrium from the residue of a sand chlorinator. It comprises: providing a residue from a sand chlorinator, the residue containing scandium, yttrium, sodium, calcium and at least one radioactive metal of the group consisting of radium, thorium and uranium; digesting the residue with an acid to produce an aqueous liquid containing scandium, yttrium, sodium, calcium and at least one radioactive metal of the group consisting of radium, thorium and uranium; feeding the metal containing liquid through a cation exchanger; eluding the cation exchanger with an acid eluant to to produce: a first eluate containing at least half of the total weight of the calcium and sodium in the feed liquid; a second eluate containing at least half of the total weight of the one or more radioactive metals in the feed liquid; a third eluate containing at least half of the yttrium in the feed liquid, and a fourth eluate containing at least half of the weight of the scandium in the feed liquid.

Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
Patent Number(s):
US 5045209; A
Application Number:
PPN: US 7-587191
OSTI ID:
5504149
Country of Publication:
United States
Language:
English

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Related Subjects

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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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ACTINIDES
ALKALINE EARTH METALS
CHEMICAL COMPOSITION
CHEMICAL WASTES
CHROMATOGRAPHY
ELEMENTS
INDUSTRIAL WASTES
ION EXCHANGE MATERIALS
MANAGEMENT
MATERIALS
MATERIALS RECOVERY
METALS
NONRADIOACTIVE WASTES
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIUM
RECOVERY
SCANDIUM
SEPARATION PROCESSES
THORIUM
TRANSITION ELEMENTS
URANIUM
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YTTRIUM