کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4769321 | 1425535 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A comprehensive utilization of silver-bearing solid wastes in chalcopyrite bioleaching
ترجمه فارسی عنوان
استفاده جامع از ضایعات جامد نقره در زباله چالکوپیریت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this work, two types of abandoned silver-bearing solid wastes of zinc leaching residue (ZLR) and firebrick were used as silver catalysis in chalcopyrite bioleaching by mixed moderately thermophilic culture. Bioleaching results showed that the chosen ZLR and waste firebrick both remarkably promoted chalcopyrite bioleaching, and chalcopyrite was not passivated at high redox potential (more than 600Â mV vs. Ag/AgCl) in the presence of silver-bearing solid wastes. The bioleaching residues were subsequently leached by thiourea to recover silver. Results indicated that silver was more easily to be extracted from bioleaching residues than from untreated silver-bearing solid wastes, and high silver recovery of about 90% can be finally achieved. Hence, this work is potentially useful to provide a promising technique for promoting chalcopyrite bioleaching and for comprehensive utilization of silver-bearing solid wastes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 169, May 2017, Pages 152-157
Journal: Hydrometallurgy - Volume 169, May 2017, Pages 152-157
نویسندگان
Jun Wang, Rui Liao, Lang Tao, Hongbo Zhao, Rui Zhai, Wenqing Qin, Guanzhou Qiu,