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胺离子和胺分子原则上可在矿物表面上吸附。捕收剂的吸附能由决定捕收剂在溶液中存在状态和矿物表面带电状态的电场的静电分量、与矿物和捕收剂晶体结构参数有关的被吸附的捕收剂的烃链的缔合能、捕收剂的极性基与矿物表面之间的非静电作用能(通过弱的化学吸附形成氢键、通过牢固化学吸附形成二维金属胺络合物和通过化学反应形成价饱和的金属胺络合物)组成。在矿物表面上形成浮选所必需的捕收剂吸附层是捕收剂离子和分子形成氢键和二维金属胺络合物来中和矿物表面所带的负电荷,并使矿物表面疏水化,以保证矿物浮选所需要的热力学稳定性,创造捕收剂物理吸附的最佳条件,即通过烃基之间的色散作用,形成半胶束、缔合物和胶束簇,从而促使矿粒浮选。矿物浮选所需要的捕收剂吸附密度与矿物原来的疏水程度有关,但是,在矿物表面上形成价饱和的金属胺络合物时,捕收剂的吸附密度会提高,使得形成捕收剂吸附层最佳结构变得困难。随着捕收剂烃链分支化,浮选所需要的捕收剂浓度增大。
Amine ions and amine molecules can in principle be adsorbed on mineral surfaces. The sorption energy of the collector can be determined by the association of the electrostatic components of the electric field that determine the presence of the collector in solution and the charged state of the mineral surface, the hydrocarbon chains of the adsorbed collector associated with the crystal and structure parameters of the mineral and collector The non-electrostatic interaction energy between the polar groups of the collector and the mineral surface (formation of hydrogen bonds by weak chemisorption, formation of two-dimensional metal amine complexes by firm chemisorption and formation of valence-saturated metals by chemical reaction Amine complex). Collectors necessary to form a flotation on the mineral surface The adsorbent layer is a collector of ions and molecules that form hydrogen bonds and two-dimensional metal amine complexes to neutralize the negative charge on the mineral surface and to hydrophobize the mineral surface , In order to ensure the thermodynamic stability required for flotation of mineral and to create the optimum conditions for the physical adsorption of collector by forming the semi-micelles, association and micelle clusters through the dispersion of hydrocarbon groups, Flotation. The density of collectors required for mineral flotation is related to the original degree of hydrophobicity of the mineral, however, as the valency of the metal amine complex is formed on the surface of the mineral, the adsorption density of the collector will increase, resulting in the formation of collectors The best structure for the adsorbed layer becomes difficult. As the collector hydrocarbon chains are branched, the collector concentration required for flotation increases.