Title:
【発明の名称】ウランまたは/およびトリウムを含む液からのウランまたは/およびトリウムの除去回収法
Document Type and Number:
Japanese Patent JPS5924730
Kind Code:
B2
Abstract:
A process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium is disclosed, which comprises capturing the uranium and/or thorium in the liquid by an amorphous silica precipitate formed by adding water glass to the liquid, making the captured uranium and/or thorium eluted from the precipitate by acid-treatment, recovering the eluted uranium and/or thorium as an acidic solution, and regenerating the precipitate to water glass by use of an alkali metal hydroxide solution. Thus, the uranium and/or thorium can be recovered in high yield and the amorphous silica precipitate, that is, a formed radioactive solid waste can be remarkably reduced.
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Inventors:
ISHIWATARI MASAHARU
KURODA YASUO
TANAKA SHOICHI
WATANABE TSUNEO
HASEGAWA SHINICHI
KURODA YASUO
TANAKA SHOICHI
WATANABE TSUNEO
HASEGAWA SHINICHI
Application Number:
JP16907579A
Publication Date:
June 12, 1984
Filing Date:
December 25, 1979
Export Citation:
Assignee:
MITSUBISHI METAL CORP
International Classes:
B01J20/10; C01B33/32; C01F15/00; C01G43/00; C22B60/02; G21F9/06; G21F9/10; (IPC1-7): C01G43/00; B01J20/10; C01B33/32; C01G57/00
Attorney, Agent or Firm:
Yoshinao Shirakawa