Title:
白金族金属精鉱の精錬方法
Document Type and Number:
Japanese Patent JP2014507564
Kind Code:
A
Abstract:
This invention relates to a process in which a Platinum Group Metal (PGM)-rich residue from a BMR (Base Metals Refinery) process is subjected to a high temperature roast to remove contaminants, typically volatile elements (for example Se, Te, As, S, Bi, Os) and obtain a roast product. The roast product is smelted with a flux to form a slag phase and an alloy phase, and to vaporize sulphates and heavy metals like Pb, Te, and remove stable oxide compounds such as Si02 and oxides of Fe, Ni, Co, Cu, Cr, Te, Bi to the slag phase. The alloy and the slag phase are separated, and the alloy phase is then melted and atomized with a gas or liquid atomization process to form fine alloy particles that can be dissolved in water and treated in a hydrometallurgical PMR (Precious Metals Refinery) process.
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Inventors:
Gerd Adrian Beziden Hout
Jacobs Johannes Exteen
Jacobs Johannes Exteen
Application Number:
JP2013552309A
Publication Date:
March 27, 2014
Filing Date:
February 02, 2012
Export Citation:
Assignee:
WESTERN PLATINUM LTD
International Classes:
C22B11/02; C22B1/04; C22B5/10; C22B5/16; C22B9/04; C22B9/10
Attorney, Agent or Firm:
Kenji Sugimura
Hiroshi Ikeda
Kengo Sake
Hiroshi Ikeda
Kengo Sake