| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently remove Se and Te from a raw material containing Se, Te and platinum group metals, and to leach/recover platinum group metals. <P>SOLUTION: In the chloridizing treatment method for an Se-containing material, a raw material containing Se, Te and platinum group metals (e.g., residue after drying in an Se distillation tower) is subjected to chloridizing volatilizing treatment in a chlorine atmosphere to remove Se and Te; a chloride is added to the treated material, and chloridizing roasting treatment is performed in a chlorine atmosphere to further remove Se and Te, thus platinum group metals are made into soluble salts; and next, the treated material is subjected to water leaching to leach/recover platinum group metals. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
