Ball milling of high carbon ferro chrome slag to liberate the alloy for gravity concentration
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- 作者：Vusumuzi Sibanda ; Vusumuzi.Sibanda@wits.ac.za ; Refilwe Kopong ; Sehliselo Ndlovu ; Ratombo Zwanga
- 关键词：Ferrochrome slag ; Milling ; Breakage function ; Selection function & liberation
- 刊名：International Journal of Mineral Processing
- 出版年：2016
- 出版时间：10 December 2016
- 年：2016
- 卷：157
- 期：Complete
- 页码：46-54
- 全文大小：781 K
- 卷排序：157
文摘
Bij and Si of a HCFeCr slag were determined by milling experiments using the monosize fraction method. Increasing mill speed from 75% Ncrit to 85% Ncrit increased Si for all size fractions, increase to 90% Ncrit reduced Si Increase in U from 40% to 60% increased Si for dp < 5.6 mm and decreased Si for dp > 5.6 mm, at U of 80%, Si decreased sharply. Particles in range -1.18 + 0.6 mm contain the highest amount of the FeCr alloy and the least amount of SiO2. The PBM predicted product PSD fitted the experimental data well.