کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9632487 | 462112 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Leaching of a sphalerite concentrate with H2SO4-HNO3 solutions in the presence of C2Cl4
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Leaching of a sphalerite concentrate with H2SO4-HNO3 solutions in the presence of C2Cl4 Leaching of a sphalerite concentrate with H2SO4-HNO3 solutions in the presence of C2Cl4](/preview/png/9632487.png)
چکیده انگلیسی
The enhanced leaching of sphalerite concentrates in H2SO4-HNO3 solutions and the extraction of sulfur with tetrachloroethylene were studied. Variables of the process were investigated including leaching temperature, reaction time, liquid / solid ratio, and tetrachloroethylene concentration. The number of cycles that tetrachloroethylene could be recycled did not have a significant effect on zinc extraction. The results indicated that 99.6% zinc extraction was obtained after three hours of leaching at 85 °C and 0.1 MPa O2, when 20 g of sphalerite concentrate were leached in a 200 ml solution containing 2.0 mol/L H2SO4 and 0.2 mol/L HNO3, in the presence of 10 ml C2Cl4. Leaching rates were significantly improved under these conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 80, Issue 4, 30 December 2005, Pages 265-271
Journal: Hydrometallurgy - Volume 80, Issue 4, 30 December 2005, Pages 265-271
نویسندگان
Peng Peng, Huiqin Xie, Lizhu Lu,