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Patent Searching and Data


Title:
TREATMENT OF SOLUTION CONTAINING DISSOLVED URANIUM
Document Type and Number:
Japanese Patent JPS57205323
Kind Code:
A
Abstract:

PURPOSE: To recover simply and inexpensively uranium from a soln. contg. dissolved uranium by adjusting the soln. to a specified pH and bringing it into contact with iron oxide hydrate to capture uranium by adsorption.

CONSTITUTION: A soln. contg. dissolved uranium is adjusted to 2W9, preferably 3W6pH with an alkali agent such as NaOH or Na2CO3. This soln. is brought into contact with iron oxide hydrate to capture uranium by adsorption. As the iron oxide hydrate at least 1 kind of crystalline iron oxide hydrate selected from a group consisting of goethite, lepidocrosite and akagneite is preferably used, and the preferred specific surface area is ≥1, especially ≥10m2/g. The iron oxide hydrate having the captured uranium is separated from the treating soln. and brought into contact with ≥0.1, preferably 0.3W0.7mol/l alkali soln. such as sodium carbonate soln. to elute the captured uranium.


Inventors:
KOU SHIROU
TANAKA AKIRA
Application Number:
JP9104081A
Publication Date:
December 16, 1982
Filing Date:
June 13, 1981
Export Citation:
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Assignee:
DOWA MINING CO
International Classes:
C22B60/02; B01J20/06; C01G43/00; (IPC1-7): B01J20/06; C01G43/00; C22B60/02