کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
214417 1425841 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Recovery of silver and zinc by acid pressure oxidative leaching of silver-bearing low-grade complex sulfide ores
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Recovery of silver and zinc by acid pressure oxidative leaching of silver-bearing low-grade complex sulfide ores
چکیده انگلیسی

Rich silver-bearing low-grade complex sulfide ores can be found in great supply in China's Yunnan Province. The beneficiation experiment showed that it would be very difficult to separate Ag (Zn or Pb) minerals with traditional ore beneficiation methods. In the present work, acid pressure oxidative leaching of such complex sulfide ores in sulfate medium added sodium iodine and at the temperature ranging from 90 to 170 °C was studied to search for silver recovery alternatives. The Lab-scale experiments were conducted in a 2-L autoclave to investigate the influences of temperature, acidity, sodium iodide addition, oxygen pressure, oxygen flow rate on recovery of silver and zinc. The experimental results obtained show that under optimum conditions, recovery yield of silver and zinc reaches 71.5% and 41.29%, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mineral Processing - Volume 89, Issues 1–4, 5 December 2008, Pages 60–64
نویسندگان
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