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应用毛细穿透的技术测定了在与浮选有关条件下闪锌矿颗粒的润湿性。根据对闪锌矿颗粒层的润湿速率和平衡毛细压力的测定分别确定了各个颗粒的接触角。不同颗粒大小的闪锌矿其接触角的变化范围为75～90°,而人工制备的硫化锌(99.9%)的接触角为46～53°。天然闪锌矿疏水性强是因为偶尔受到铜的活化以及会形成富含硫的表面层而造成的,这现象是通过化学全分析和表面分析(X-射线光电分光镜和扫描俄歇显微镜分析)研究而确定的。在扫描俄歇显微镜分析中还发现了不同矿物颗粒之间表面铜含量是变化的,并证明了闪锌矿表面的化学性质是非均匀的。根据后一种现象可对接触角的可变性进行讨论。
The capillary penetration technique was used to determine the wettability of sphalerite particles under conditions associated with flotation. The contact angle of each particle was determined according to the wetting rate of the sphalerite layer and the equilibrium capillary pressure, respectively. The contact angles of sphalerite with different particle sizes range from 75 to 90 ° compared to 46 to 53 ° for artificially prepared zinc sulfide (99.9%). The strong hydrophobicity of natural sphalerite is caused by the occasional activation of copper and the formation of a sulfur-rich surface layer by chemical full analysis and surface analysis (X-ray photoelectron spectroscopy and scanning Auger microscopy ) Research confirmed. In the scanning Auger microscope analysis, it was also found that the copper content on the surface varies among the different mineral particles and that the surface chemistry of the sphalerite is non-uniform. According to the latter phenomenon, the variability of contact angle can be discussed.