A comparison of ultrasound-augmented and conventional leaching of silver from sintering dust using acidic thiourea
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- 作者：Jun Changa ; b ; Er-dong Zhanga ; b ; Li-bo Zhanga ; b ; Jin-hui Pengb ; c ; Jun-wen Zhoua ; b ; zhoujunwen520@126.com" class="auth_mail" title="E-mail the corresponding author ; C. Srinivasakannand ; Chang-jiang Yangb
- 关键词：Sintering dust ; Dissolution kinetic ; Silver ; Ultrasound augmented ; Conventional ; Acidic thiourea
- 刊名：Ultrasonics Sonochemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：34
- 期：Complete
- 页码：222-231
- 全文大小：3640 K
文摘
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Ultrasound is used to assisted leaching silver from sintering dust in the presence of acidic thiourea.
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A comparison study between ultrasound-augmented leaching and conventional leaching of silver has been discussed.
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The rate of leaching was found to be higher with the ultrasound augmented leaching than the conventional leaching.
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Shrinking core model was used to describe the kinetic parameters and the rate controlling step.
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Both conventional and ultrasonic-augment leaching processes were controlled by diffusion through the product layer.