Mineral Processing Technology Study on a Lean Hematite Ore with Finely-Disseminated Minerals

Abstract:

The mineral processing experimental research was carried out on the hematite bearing characteristics of low grade, fine grain,complex composition. The results showed that using the technological flowsheet of “stage grinding- low intensity magnetic separation”, the iron concentrate with recovery of 36.56% and grade of 65.85% Fe can be obtained. And the iron concentrate with recovery of 17.23% and grade of 63.53% Fe can be obtained by “stage grinding-HIMS process-reverse flotation” process. The final iron concentrate with TFe grade of 65.10%,yield of 19.19% and total iron recovery of 53.79% from the raw ores with TFe grade of 23.41％ was obtained, with the first stage grinding size being 55% -0.074mm and the second stage,93% -0.074mm.

• Periodical: Applied Mechanics and Materials (Volumes 303-306)
• Pages: 2473-2476
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.303-306.2473
• Online since: February 2013
• Authors: Wei Zhi Wang, Li Hui Zhou, Chun Guang Yang
• Keywords: Fine-Disseminated Hematite, High-Intensity Magnetic Separation, Reverse Flotation, Stage Grinding

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