本文描述了近几年浮选研究中出现的一种新趋势,作者称之为“γ—浮选”的方法是控制液—气界面张力,而不是采用常规捕收剂,改变所分离矿物的润湿性。本文将在以表面化学为基础的分选过程中,解释“γ-浮选”的依据,说明润湿临界表面张力作为分选判据的应用。所举的例子包括煤、油页岩、硫化矿和硅石等体系。这些例子来自于文献和作者的实验工作。研究表明,经典的盐溶液浮选法有许多符合“γ-浮选”,本文还概括了“γ-浮选”的一般规则。 This article describes a recent trend in flotation studies that the authors call “γ-flotation” to control liquid-gas interfacial tension rather than using conventional collectors to alter the content of the separated minerals Wettability. This article will explain the basis of “γ-flotation” in the surface chemistry-based sorting process, illustrating the application of the critical wettability surface tension as a sorting criterion. Examples include coal, oil shale, sulphide ore and silica systems. These examples come from the experimental work of the literature and authors. Studies have shown that many of the classic salt solution flotation methods are in line with “γ-flotation,” and general rules for “γ-flotation” are also summarized.