Leaching of silver contained in mining tailings, using sodium thiosulfate: A kinetic study
详细信息 查看全文
- 作者：Eleazar Salinas-Rodrí ; gueza ; b ; 1 ; salinasr@uaeh.edu.mx" class="auth_mail" title="E-mail the corresponding author ; esalinas1994nov@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Juan Herná ; ndez-Á ; vilaa ; 1 ; Isauro Rivera-Landeroa ; 1 ; Eduardo Cerecedo-Sá ; enza ; 1 ; Ma. Isabel Reyes-Valderramaa ; 1 ; Manuel Correa-Cruzb ; 2 ; Daniel Rubio-Mihib ; 2
- 关键词：Silver recovery ; Leaching of tailings ; Kinetic study ; Controlled by diffusion
- 刊名：Hydrometallurgy
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：160
- 期：Complete
- 页码：6-11
- 全文大小：784 K
文摘
- •
We execute a kinetics study of silver leaching from tailings, using thiosulfate.
- •
Reaction orders are 1 (oxygen), 0.07 (thiosulfate), 0.45 (pH) and 0.26 (copper).
- •
The activation energy in the range of temperatures 288–328 K was 1.91 kJ·mol− 1.
- •
The kinetics is controlled by, mass transfer of oxygen, in the solid–liquid surface.
- •
The presence of Cu2 + in the system increases silver leaching rate.