Gillies Graeme, Kappl Michael, Butt Hans-Jürgen
Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Adv Colloid Interface Sci. 2005 Jun 30;114-115:165-72. doi: 10.1016/j.cis.2004.08.003.
The essence of mineral flotation is the formation of strong particle-bubble aggregates. Hydrodynamics and DLVO forces hinder the particle-bubble approach, however the presence of a hydrophobic surface results in hydrophobic attraction and strong aggregate formation. In this article we review literature where the colloid probe technique has been used to investigate flotation, primarily particle-bubble interactions in aqueous solution. In some instance particles-bubble interactions have used to quantify the hydrophobic force, whilst hydrophobic forces are crucial for particle-bubble attachment, studies of hydrophobic forces are not the main focus of this article.
矿物浮选的本质是形成强大的颗粒 - 气泡聚集体。流体动力学和DLVO力会阻碍颗粒与气泡的靠近,然而疏水表面的存在会导致疏水吸引并形成强大的聚集体。在本文中,我们回顾了利用胶体探针技术研究浮选的文献,主要是关于水溶液中颗粒 - 气泡的相互作用。在某些情况下,颗粒 - 气泡相互作用已被用于量化疏水力,虽然疏水力对颗粒 - 气泡附着至关重要,但疏水力的研究并非本文的主要重点。