Molybdenum is an important alloy element for metallurgical industry because of its high temperature stability. As the major mineral reserve for molybdenum, molybdenite (MoS₂) is commonly found in porphyry copper deposits. Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, microstructure, surface wettability, zeta potential, etc. can have a great effect on its floatability. Organic and inorganic depressants and surface pre-treatment methods are applied to improve the recovery of molybdenite. Electrochemical potential measurements using different electrodes are used to monitor process conditions and enable processing parameter adjustments to improve flotation circuit performance and reduce operating costs. Cations like Ca²⁺ and Mg²⁺ are reported to have negative effects on the flotation of molybdenite in alkaline solution, and dispersants and oil collectors need to be added to restore the flotation of molybdenite. In addition, effects of gangue minerals, particle size, and oil collectors and surfactants on molybdenite recovery are also discussed in this manuscript.

钼因其高温稳定性而成为冶金工业的重要合金元素。作为钼的主要矿产储量，辉钼矿（MoS ₂) 常见于斑岩铜矿床。辉钼矿是天然可浮的，可以使用泡沫浮选法从硫化铜矿物中分离出来。辉钼矿的矿物学、微观结构、表面润湿性、zeta 电位等特性对其可浮性有很大影响。采用有机和无机抑制剂和表面预处理方法来提高辉钼矿的回收率。使用不同电极的电化学电位测量可用于监测工艺条件并调整工艺参数，以提高浮选回路性能并降低运营成本。Ca ²⁺和 Mg ²⁺等阳离子据报道，在碱性溶液中对辉钼矿的浮选有负面影响，需要添加分散剂和捕油剂来恢复辉钼矿的浮选。此外，本手稿还讨论了脉石矿物、粒度以及油收集剂和表面活性剂对辉钼矿回收率的影响。