中文摘要：

寻找有效硅酸盐矿物质收集者的一个新奇的班，双子座第四级的铵盐表面活化剂(钢瓶煤气--， -bis(dimethyl dodeculammonium 溴化物)， 12-4-12 )并且它的相应常规 monomeric 表面活化剂( dedecyl trimethyl 铵溴化物， DTAB )被采用比较地学习 illite 的筹款行为，叶卉石和 kaolinite 。有双子座表面活化剂的三种硅酸盐矿物质作为收集者揭示比与相应的传统的远好的 floatability。在 pH 6，有 3.5 的 illite，叶卉石和 kaolinite 的最好的恢复

英文摘要：

To search a novel class of effective silicate mineral collectors, the Gemini quaternary ammonium salt surfactant （butane-α, ω-bis（dimethyl dodeculammonium bromide）, 12-4-12） and its corresponding conventional monomeric surfactant （dedecyl trimethyl ammonium bromide, DTAB） were adopted to comparatively study the flotation behaviors of illite, pyrophyllite and kaolinite. Three silicate minerals with the Gemini surfactant as collector reveal floatability far better than with the corresponding traditional one. At pH 6, the best recoveries of illite, pyrophyllite and kaolinite with 3.5 × 10 ^-4 mol/L 12-4-12 are 99.2%, 91.7% and 99.6%, respectively The fluorescence and contact angle measurement were also conducted for the further investigation of surfactants aggregation behavior and silicate mineral surface hydrophobic properties. FTIR spectra analysis and electrokinetic analysis show that the mechanism of adsorption of collector molecules on mineral surfaces is almost identical for the electronic attraction and hydrogen bonds effect. The superior collecting power of dimeric collector may be attributed primarily to its special structure and its essential properties.