Title:
固体状廃液又は懸濁液中の物質を含有する廃液中でラジウムを安定化する方法
Document Type and Number:
Japanese Patent JP5258766
Kind Code:
B2
Abstract:
Method of stabilizing radium present in radium-containing effluent, in which the effluent and a metal chloride are mixed, then the previously obtained mixture is reacted with a sulfate ion to obtain effluent containing stabilized radium. The chloride can be a barium, strontium or lead chloride. The sulfate ion can be supplied by the addition of sulfuric acid, sulfuric anhydride, soluable sulfate or soluble sulfate salt. The method applies in particular to the treatment of solid radium-containing effluents or effluents containing substances in suspension coming from chemistry or metallurgy of zirconium or treatment of uranium-containing minerals.
Inventors:
Veil duni
Application Number:
JP2009523320A
Publication Date:
August 07, 2013
Filing Date:
August 10, 2007
Export Citation:
Assignee:
Companion Europe Anne Du Zirconian Sez
International Classes:
G21F9/10; C02F1/36; C02F1/52; C02F1/62; C02F11/00
Domestic Patent References:
| JP2000507308A | ||||
| JP2002530261A |
Foreign References:
| US20060088457 | ||||
| US5160482 |
Other References:
D.MOFFETT et al,“Radium-226 removal from a uranium mill effluent-physical/chemcal treatment process development studies”,CIM Bull(Can Inst Min Metall),1980年 7月,Vol.73 No.819,Page.148-155
Attorney, Agent or Firm:
Sadao Kumakura
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki