Photocatalytic gold recovery from spent cyanide plating bath solutions

被引：23
|
作者：
van Grieken, R [1 ]
Aguado, J [1 ]
López-Muñoz, MJ [1 ]
Marugán, J [1 ]
机构：
[1] Rey Juan Carlos Univ, Dept Chem & Environm Technol, Madrid 28933, Spain
来源：
GOLD BULLETIN | 2005年 / 38卷 / 04期
关键词：
photocatalysis; gold recovery; cyanide; plating bath;
D O I：
10.1007/BF03215258
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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.
引用
收藏
页码：180 / 187
页数：8
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