کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
213110 462081 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acid leaching of ilmenite decomposed by KOH
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Acid leaching of ilmenite decomposed by KOH
چکیده انگلیسی

The effects of reaction time, KOH concentration, alkali-to-ilmenite mass ratios and reaction temperature on titanium decomposition were investigated. Minor amounts of titanium and iron were leached (less than 2%) from the decomposed ilmenite ore in the alkaline KOH solution. After alkaline treatment, the ilmenite paste was leached to extract iron, titanium, chromium and vanadium by adding sulfuric acid, hydrochloric acid or oxalic acid. The significant effects of reaction time, acid concentration, acid-to-ilmenite mass ratios and reaction temperature on the leaching were studied for each acid. About 93%, 92% and 89% of titanium could be leached from the alkaline treated ilmenite paste, under the optimal conditions by oxalic acid, hydrochloric acid and sulfuric acid, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 97, Issues 1–2, June 2009, Pages 86–93
نویسندگان
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