Title:
METHOD FOR RECOVERING PGM FROM MEMBER TO BE PROCESSED THAT CONTAINS PGM
Document Type and Number:
WIPO Patent Application WO/2012/108522
Kind Code:
A1
Abstract:
Provided is a method for recovering PGM from a material to be processed that contains PGM. Specifically provided is a method for recovering PGM from a material to be processed that contains PGM, which comprises: a reduction smelting step wherein a member to be processed that contains PGM, Cu and/or Cu2O and a flux are subjected to reduction smelting so that molten slag and a Cu alloy containing PGM are produced; and an oxidation smelting step wherein the Cu alloy containing PGM is subjected to oxidation smelting and then SiO2 is added to the molten Cu alloy so that Cu2O slag containing PGM and a Cu alloy having a higher PGM concentration than the above-described Cu alloy containing PGM are produced. In the oxidation smelting step, the PGM content in the Cu alloy is set at more than 0% by mass but 75% by mass or less.
Inventors:
NAKAMURA YUZURU (JP)
KAWASAKI MINORU (JP)
YAMAGUCHI KATSUNORI (JP)
KAWASAKI MINORU (JP)
YAMAGUCHI KATSUNORI (JP)
Application Number:
PCT/JP2012/053069
Publication Date:
August 16, 2012
Filing Date:
February 10, 2012
Export Citation:
Assignee:
DOWA METALS & MINING CO LTD (JP)
NAKAMURA YUZURU (JP)
KAWASAKI MINORU (JP)
YAMAGUCHI KATSUNORI (JP)
NAKAMURA YUZURU (JP)
KAWASAKI MINORU (JP)
YAMAGUCHI KATSUNORI (JP)
International Classes:
C22B11/02; B09B3/00; C22B5/10; C22B7/00; C22B9/10
Foreign References:
| JPH04317423A | 1992-11-09 | |||
| JP2000248322A | 2000-09-12 | |||
| JP2004270008A | 2004-09-30 | |||
| JP2004068071A | 2004-03-04 | |||
| JP2003301225A | 2003-10-24 |
Attorney, Agent or Firm:
ANIYA Setuo et al. (JP)
Ani store Setsuo (JP)
Ani store Setsuo (JP)
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Claims:
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