Title:
METHOD FOR TREATING ZIRCONIUM WASTE, AND MOLTEN SALT REFINING DEVICE
Document Type and Number:
Japanese Patent JP2007063591
Kind Code:
A
Abstract:
To provide a method for treating zirconium waste using molten salt electrolysis capable of recovering more refined zirconium having a low contamination rate from zirconium waste.
The method for treating zirconium waste where a radioactive material and zirconium are separated using a molten salt electrolysis process includes: a first molten salt electrolysis stage where a channel box and/or a sheathed tube for used fuel is subjected to anodic dissolution, and zirconium is precipitated at a cathode; and a second molten salt electrolysis stage where zirconium precipitated in the first molten salt electrolysis stage is mounted on an anode, so as to perform anodic dissolution, and, again, zirconium is precipitated at the cathode.
Inventors:
NAKAMURA HITOSHI
FUJITA REIKO
SATO KOKICHI
UTSUNOMIYA KAZUHIRO
FUJITA REIKO
SATO KOKICHI
UTSUNOMIYA KAZUHIRO
Application Number:
JP2005249209A
Publication Date:
March 15, 2007
Filing Date:
August 30, 2005
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
C25C3/26; C22B7/04; C22B34/14; C22B60/02; G21C19/44
Attorney, Agent or Firm:
Saichi Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama
Previous Patent: 中綿式筆記具
Next Patent: METHOD FOR CONSTRUCTING BLAST FURNACE AND METHOD FOR DISMANTLING BLAST FURNACE
Next Patent: METHOD FOR CONSTRUCTING BLAST FURNACE AND METHOD FOR DISMANTLING BLAST FURNACE