Chemistry Letters, Vol.31, No.11, 1094-1095, 2002
Sulphidization of metal oxides by means of mechanochemical solid reaction
Co-grinding nonferrous metal oxides and sulphur together with iron/aluminium metal stimulates a solid-state reaction to form the nonferrous metal sulphides and iron/aluminium oxide, allowing the use of the current mineral processing technologies to recover metals from various kinds of wastes.