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红土型金富集与胶态金的形成及其与富氧化铁介质的相互作用有关。在25℃下,测量了吸附在合成的针铁矿和赤铁矿上的胶态金。在相反电荷粒子间观察到的强亲和力取决于介质成分。柠檬酸盐阴离子的存在抑制相互凝结作用,而惰性电解质则加强这种作用。
The lateritic gold enrichment is related to the formation of colloidal gold and its interaction with ferric oxide rich media. Colloidal gold adsorbed on synthetic goethite and hematite was measured at 25 ° C. The strong affinity observed between oppositely charged particles depends on the medium composition. The presence of citrate anions suppresses coagulation, whereas inert electrolytes enhance this effect.