کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6658794 | 1425524 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel technology for the refinement of low-grade ilmenite concentrate
ترجمه فارسی عنوان
یک تکنولوژی جدید برای پالایش از کنسانتره الیمنیت با درجه پایین
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this paper, the refinement of low-grade ilmenite concentrate was studied. It was found that by transforming in NaOH/NaNO3 molten salt, and then leaching in water and in dilute hydrochloric acid, the low-grade ilmenite concentrate containing 3.09â¯wt% Mg, 1.03â¯wt% Ca, 3.38â¯wt% Si and 1.54â¯wt% Al can be refined well, meanwhile the contents of Ti and Fe are not affected. The lattice of ilmenite concentrate can be completely destroyed in the molten salt with NaOH/NaNO3 weight ratio 7:3 at 400â¯Â°Cfor 6â¯h. The removal rates of Mg, Al, Ca and Si are 86.62%, 90.55%, 92.62%, 92.90% respectively by leaching the transformed concentrate in water with L/S ratio 2:1â¯mL/g at 60â¯Â°C for 0.5â¯h, and leaching the water leached residue in dilute HCl solution with L/S ratio 4:1â¯mL/g under pHâ¯1.2 at 40â¯Â°C for 2â¯h. The contents of Mg, Al, Ca and Si are 0.41â¯wt%, 0.13â¯wt%, 0.08â¯wt% and 0.21â¯wt% respectively in the refined concentrate, which is suitable for arc reduction smelting to produce high-quality titanium slag.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 180, September 2018, Pages 36-40
Journal: Hydrometallurgy - Volume 180, September 2018, Pages 36-40
نویسندگان
Xuewen Wang, Xuehui Liu, Yiqian Ma, Mingyu Wang, Yi Wang, Xingming Wang,