Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. There have been many studies to overcome this problem, and depress talc with various reagents. In this study the flotation of a copper ore in the presence of talc and muscovite was studied. It was found that talc can affect copper flotation mainly via froth phase. The copper grade and recovery were affected in the presence of only 7% talc. On the other hand, muscovite influenced the pulp phase via affecting the pulp rheology. The copper flotation grade was reduced in the presence of high amount (30%) of muscovite due to the entrainment, but its effect on the copper recovery was negligible.

中文翻译：

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滑石和云母在铜矿浮选中的行为

滑石和云母是许多贱金属矿石（包括硫化物矿石）中的主要脉石矿物。滑石是一种天然疏水性矿物，因此很容易漂浮。已经有很多研究来克服这个问题，并用各种试剂抑制滑石粉。在这项研究中，研究了在滑石和白云母存在下铜矿石的浮选。发现滑石粉主要通过泡沫相影响铜浮选。仅存在 7% 滑石粉时，铜品位和回收率就会受到影响。另一方面，白云母通过影响纸浆流变学影响纸浆相。由于夹带量（30%）白云母的存在，铜浮选品位会降低，但其对铜回收率的影响可以忽略不计。