Siyou Li, Lixia Li
In the staged grinding – staged magnetic separation process of magnetite ores, the selection of suitable grinding fineness is often mainly based on empirical design or single – index evaluation, which makes it difficult to balance mineral liberation degree, energy consumption, and magnetic separation performance. To this end, taking a – 3 mm magnetite ore after High Pressure Grinding Rolls (HPGR) as the research object, this paper introduces an experimental implementation method for determining suitable finenesses of staged grinding based on mineralogical properties, Bond Ball Mill Work Index, and magnetic separation performance. Results showed that a grinding fineness of – 0.074 mm passing 75 % was suitable for the first – stage grinding of this magnetite ore. Under this condition, the corresponding Bond Ball Mill Work Index was 8.00 kWh/t, while the concentrate yield of the first – stage magnetic separation was 53.32 %, with magnetic iron (MFe) grade and recovery of 51.00 % and 94.22 %, respectively. This proposed approach effectively integrates mineralogical characteristics, grinding energy consumption, and separation performance, and can provide a valuable reference for the optimization of staged grinding – staged magnetic separation processes for fine – grained embedded magnetite ores.
@article{ae86b4b9-3442-47d2-ba9b-5fb3d5516ded,
title={Experimental selection of first stage grinding fineness based 2027 Minerals },
author={Siyou Li and Lixia Li},
year={2026},
language={en}
}TY - JOUR TI - Experimental selection of first stage grinding fineness based 2027 Minerals AU - Siyou Li AU - Lixia Li PY - 2026 LA - en ER -
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