سامانه مدیریت نشریات علمی دانشگاه صنعتی شاهرود

salehi, soghra, Noaparast, M., Shafaei, S.Z., Amini, A., Heidarnia, A.. (1393). Iron leaching from bauxite ore in hydrochloric acid using response surface methodology. , 6(1), 103-108. doi: 10.22044/jme.2015.363
soghra salehi; M. Noaparast; S.Z. Shafaei; A. Amini; A. Heidarnia. "Iron leaching from bauxite ore in hydrochloric acid using response surface methodology". , 6, 1, 1393, 103-108. doi: 10.22044/jme.2015.363
salehi, soghra, Noaparast, M., Shafaei, S.Z., Amini, A., Heidarnia, A.. (1393). 'Iron leaching from bauxite ore in hydrochloric acid using response surface methodology', , 6(1), pp. 103-108. doi: 10.22044/jme.2015.363
salehi, soghra, Noaparast, M., Shafaei, S.Z., Amini, A., Heidarnia, A.. Iron leaching from bauxite ore in hydrochloric acid using response surface methodology. , 1393; 6(1): 103-108. doi: 10.22044/jme.2015.363

Iron leaching from bauxite ore in hydrochloric acid using response surface methodology

Journal of Mining and Environment
مقاله 10، دوره 6، شماره 1، فروردین 2015، صفحه 103-108    اصل مقاله (620.13 K)
نوع مقاله: Case Study
شناسه دیجیتال (DOI): 10.22044/jme.2015.363
نویسندگان
soghra salehi* 1؛ M. Noaparast2؛ S.Z. Shafaei3؛ A. Amini4؛ A. Heidarnia3
1Department of Mining Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
3School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran.
4Head of Mineral Processing Division, Geology & Exploration Organization of Iran, Tehran, Iran.
چکیده
In this work, hydrochloric acid is used to remove iron impurities in the bauxite ore contained in the diasporite mineral located in the Sari region. The bauxite ore was calcined at different temperatures and times, and then dissolved in a hydrochloric acid solution. After determining the optimum calcination conditions in 1 h at 900 °C, the response surface methodology (RSM) with four factors in five levels was employed in order to evaluate the effects of calcination temperature, calcination time, acid concentration, and leaching time on the iron leaching efficiency. A quadratic model is proposed using this methodology to correlate the leaching variables. The test results indicate that the model is consistent with the experimental data, and that the most important varriables involved are the acid concentration, leaching time, and squared term of calcination temperature (A2). The maximum iron recovery was 94.97%, and the Fe grade in the solids remained was 2.35% at the calcination temperature of 900 °C, a calcination time of 1 hour, and a leaching time of 2 h in hydrochloric acid (6 mM).
کلیدواژه‌ها
Optimization؛ Bauxite؛ Leaching؛ Iron Removal؛ Response Surface Methodology (RSM)
آمار
تعداد مشاهده مقاله: 3,568
تعداد دریافت فایل اصل مقاله: 3,028