Conversion Reactions of Uranyl Ions to Uranium Oxides in Supercritical Ethanol

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概要

• 論文の詳細を見る

• Conversion reactions of UO22+ ions to uranium oxides in supercritical ethanol have been studied to develop the method for recovering uranium from liquid wastes containing uranyl ions(UO22+). The UO2 precipitates were formed efficiently in supercritical ethanol medium under 300°C and 40 MPa. The conversion reaction of UO22+ to UO2 is proposed to proceed through two steps, i.e., the first step is the hydrolysis of UO22+, followed by the reduction of resulting hydrolysis product to U3O8, and the second one is the conversion of U3O8 to UO2. From the detection of acetal and ethyl acetate in the liquid residue, acetaldehyde is proposed to be the most probable candidate as reducing agent.

• 社団法人 日本原子力学会の論文
• 2003-05-25

著者

• Ikeda Yujiro

  Japan Atomic Energy Research Institue

• Harada M

  Department Of Energy Conversion Engineering Kyushu University

• Sato Miki

  Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology

• HARADA Masayuki

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

• IKEDA Yasuhisa

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

• FAZEKAS Zsolt

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

• TOMIYASU Hiroshi

  Department of Chemistry and Material Engineering, Shinshu University

• Fazekas Zsolt

  Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology

• Ikeda Y

  Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology

• Ikeda Yasuhisa

  Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology

• Ikeda Yasuhisa

  Res. Lab. For Nuclear Reactors Tokyo Inst. Of Technol.

• Hatta Masahisa

  Ishikawajima-harima Heavy Industries Co. Ltd.

• Tomiyasu H

  Department Of Chemistry And Material Engineering Shinsyu University

• Tomiyasu Hiroshi

  Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University

• Harada Masayuki

  Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology

• Harada Masayuki

  Research Laboratory For Nuclear Reactor Tokyo Institute Of Technology

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