A. Rabieh, J. J. Eksteen
The purpose of this study was to investigate the role of grinding media type, water chemistry and pyrite mineralogy on the galvanic interaction between grinding media and pyrite during grinding of a gold ore. The galvanic current between pyrite and grinding media increased with the electrochemical activity of the grinding media, while it decreased as a function of increasing chromium content in the media. Furthermore, changing the pyrite-based electrode from pure pyrite to a gold-bearing pyrite electrode increased the galvanic current between the pyrite and the grinding media electrodes; therefore, the gold-bearing pyrite electrode is more active than the pure pyrite. In addition, using process water instead of tap water increased the galvanic current density between pyrite and the high-chromium grinding media electrode (30% chromium). However, when the forged steel or the low-chromium grinding media electrodes were used, the galvanic current decreased compared to the tap water condition. The results obtained from SEM-EDX analysis showed the corresponding changes in oxide species affecting the galvanic interaction.
@article{87ea2f3d-a61c-4c88-82a5-85a1074e08e7,
title={Influence of grinding media pyrite miner},
author={A. Rabieh and J. J. Eksteen},
year={2026},
language={en}
}TY - JOUR TI - Influence of grinding media pyrite miner AU - A. Rabieh AU - J. J. Eksteen PY - 2026 LA - en ER -
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