%0 Journal Article
%T Photocatalytic gold recovery from spent cyanide plating bath solutions
%A Rafael van Grieken
%A Jos¨¦ Aguado
%A Mar¨ªa-Jos¨¦ L¨®pez-Mu oz
%A Javier Marug¨¢n
%J Gold Bulletin
%@ 2190-7579
%D 2005
%I Springer
%R 10.1007/BF03215258
%X A new procedure is presented for the photocatalytic treatment of the highly stable gold-cyanide complexes remaining in spent plating bath solutions. The process allows the recovery of gold by photocatalytic reduction, increasing simultaneously the availability of cyanide for removal treatment. Gold recovery requires a non-oxidant atmosphere and the presence of hydroxyl radical scavengers. The use of mixed TiO2/SiO2 photocatalysts leads to an improvement in the gold recovery rate.
%K Photocatalysis
%K Gold recovery
%K Cyanide
%K Plating bath
%U http://link.springer.com/article/10.1007/BF03215258