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研究了方铅矿、黄铁矿、闪锌矿及黄铜矿与多种黄药的同系物之间的反应。表明方铅矿及黄铁矿形成一种可溶性产物-相应的一硫代碳酸盐-以及特有的吸附产物。方铅矿与乙基黄药作用时,在有过量氧存在条件下,所有被吸附的黄药以一硫代碳酸盐形式又溶于溶液中,但吸附在黄铁矿表面上的乙基黄药却不能以这样的方式从表面上脱除。当这两种矿物与黄药的较高同系物作用时,可溶性一硫代碳酸盐生成的量与速率远较用乙基黄药时小。可以认为一硫代碳酸盐是经由吸附在表面上的混合羟基黄原酸的金属盐,但不是经由被吸附的双黄药而生成的。黄药的水溶液与黄铜矿及闪锌矿之间的反应并不能生成可溶性的一硫代碳酸盐。前者的结果与预期的作用机理相符合,后者的结果显然与预期的机理不相符合。在矿物表面上一硫代碳酸盐的吸附作用,无论有否黄药的存在都考虑到了,其结论是:一硫代碳酸盐的吸附远比相应黄药的吸附弱。
The reactions between galena, pyrite, sphalerite and chalcopyrite and homologues of various xanthophylls were studied. Indicating that galena and pyrite form a soluble product - the corresponding monothiocarbonate - as well as the unique adsorption product. Galena and ethyl xanthate, in the presence of excess oxygen, all adsorbed xanthate dissolved in solution in the form of monothiocarbonate, but adsorbed on the pyrite surface of the ethyl Xanthics can not be surfaced in such a way. When these two minerals interact with higher homologues of xanthophylls, the amount and rate of formation of soluble monothiocarbonate is much less than with ethyl xanthophyll. Monothiocarbonate is believed to be produced via the mixed metal salt of hydroxyxanthic acid adsorbed on the surface, but not via the absorbed xanthophylls. The reaction between the xanthate solution and chalcopyrite and sphalerite does not produce soluble monothiocarbonate. The former results are in line with the expected mechanism of action, which is clearly not in accordance with the expected mechanism. The adsorption of monothiocarbonate on the mineral surface is taken into account regardless of whether xanthate is present or not, concluding that the adsorption of monothiocarbonate is much weaker than that of the corresponding xanthate.