Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR SEPARATING PLATINUM GROUP ELEMENT
Document Type and Number:
WIPO Patent Application WO/2003/078670
Kind Code:
A1
Abstract:
A method for separating a platinum group element, which comprises a step (A) subjecting a material containing a platinum group element and selenium and/or tellurium to a treatment with an alkali, a step (B) of leaching selenium and/or tellurium, and a step (C) of separating a leaching residue containing a platinum group element from a solution containing the leached selenium and/or tellurium. The method allows the separation of selenium, tellurium and a platinum group element from a material containing a platinum group element and selenium and/or tellurium with good efficiency.

Inventors:
Okada, Satoshi c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Uno, Takahiro c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Sato, Kazusuke c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Ishiwata, Shoji c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Application Number:
PCT/JP2003/003108
Publication Date:
September 25, 2003
Filing Date:
March 14, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI MATERIALS CORPORATION (5-1 Otemachi 1-chome, Chiyoda-ku, Tokyo, 100-8117, JP)
Okada, Satoshi c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Uno, Takahiro c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Sato, Kazusuke c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
Ishiwata, Shoji c/o Mitsubishi Materials Corporation (Central Research Institute Omiya Research Center, 297, Kitabukuro-cho 1-chom, Saitama-shi Saitama, 330-0835, JP)
International Classes:
C22B1/02; C22B3/00; C22B7/00; C22B11/00; C22B59/00; C22B61/00; (IPC1-7): C22B11/04; C22B1/02; C22B3/00; C22B7/00; C22B61/00
Foreign References:
JP2000169116A
US4229270A
JPS60208433A
Attorney, Agent or Firm:
Shiga, Masatake (Shiga International Patent Office, 2-3-1 Yaesu Chuo-ku, Tokyo, 104-8453, JP)
Download PDF: