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含有亚铁和亚硫酸钠的体系,是无氰法分离铜、铅硫化矿物的基础。作者借助于电位测定法研究了Fe~(2+)—SO_3~(2-)体系的稳定性及其对硫化矿物表面性质的影响。在浮选使用的浓度下,用毫伏计测定亚硫酸钠与硫酸亚铁混合溶液的氧化-还原电位证明,所用的还原剂氧化过程进行得非常激烈。方铅矿的φ-电位在亚硫酸钠与硫酸亚铁的混合液中,开始阶段比在单一的药剂溶液中高一些,但在全部感应时间延续的过程中,它的电位比在不含药剂只溶有氧的蒸馏水中却低一些。
Systems containing ferrous and sodium sulfite are the basis for the cyanide-free separation of copper and lead sulphide minerals. The authors studied the stability of Fe ~ (2 +) - SO_3 ~ (2-) system and its effect on the surface properties of sulphide minerals by means of potentiometry. At the concentration used for flotation, the oxidation-reduction potential of the mixed solution of sodium sulfite and ferrous sulfate was confirmed by millivolts, demonstrating that the reductant oxidation process used was very intense. Galena φ-potential in the mixture of sodium sulfite and ferrous sulfate, the initial stage than the single agent solution higher, but in the induction of the duration of the process, its potential than in the drug-free only dissolved Oxygen distilled water is lower.