Title:
METHOD OF REDUCING HEXAVALENT URANIUM BY ULTRASONIC PROPAGATION
Document Type and Number:
WIPO Patent Application WO/2008/010538
Kind Code:
A1
Abstract:
There is a technique in which an ultrasonic wave is propagated to an aqueous solution
of tetravalent platinum ions containing a small amount of 2-propanol to thereby
reduce the tetravalent platinum ions to platinum metal. However, the mere addition
of 2-propanol as in that technique cannot produce a reducing ability sufficient
for the reduction of hexavalent uranium to tetravalent uranium with ultrasonic
propagation. A solid noble-metal catalyst is used to enhance the reducing ability
brought by ultrasonic propagation and thereby attain the reduction of hexavalent
uranium in an aqueous solution to tetravalent uranium.
Inventors:
TORAISHI, Takashi (Tokai Research and Development Center Nuclear Science Research Institute, 2-4, Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 95, 3191195, JP)
虎石 貴 (〒95 茨城県那珂郡東海村白方白根２番地４ 日本原子力研究開発機構 東海研究開発センター 原子力科学研究所内 Ibaraki, 3191195, JP)
KIMURA, Takaumi (Tokai Research and Development Center Nuclear Science Research Institute, 2-4, Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 95, 3191195, JP)
虎石 貴 (〒95 茨城県那珂郡東海村白方白根２番地４ 日本原子力研究開発機構 東海研究開発センター 原子力科学研究所内 Ibaraki, 3191195, JP)
KIMURA, Takaumi (Tokai Research and Development Center Nuclear Science Research Institute, 2-4, Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 95, 3191195, JP)
Application Number:
JP2007/064220
Publication Date:
January 24, 2008
Filing Date:
July 19, 2007
Export Citation:
Assignee:
JAPAN ATOMIC ENERGY AGENCY (4-49, Muramatsu Tokai-mura, Naka-gu, Ibaraki 84, 3191184, JP)
独立行政法人 日本原子力研究開発機構 (〒84 茨城県那珂郡東海村村松４番地４９ Ibaraki, 3191184, JP)
TORAISHI, Takashi (Tokai Research and Development Center Nuclear Science Research Institute, 2-4, Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 95, 3191195, JP)
虎石 貴 (〒95 茨城県那珂郡東海村白方白根２番地４ 日本原子力研究開発機構 東海研究開発センター 原子力科学研究所内 Ibaraki, 3191195, JP)
独立行政法人 日本原子力研究開発機構 (〒84 茨城県那珂郡東海村村松４番地４９ Ibaraki, 3191184, JP)
TORAISHI, Takashi (Tokai Research and Development Center Nuclear Science Research Institute, 2-4, Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 95, 3191195, JP)
虎石 貴 (〒95 茨城県那珂郡東海村白方白根２番地４ 日本原子力研究開発機構 東海研究開発センター 原子力科学研究所内 Ibaraki, 3191195, JP)
International Classes:
G21C19/46; B01J23/42; B01J31/28; C01G43/00
Attorney, Agent or Firm:
SHAMOTO, Ichio et al. (YUASA AND HARA, Section 206New Ohtemachi Bldg., 2-1,Ohtemachi 2-chome, Chiyoda-ku, Tokyo 04, 1000004, JP)
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