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Investigation on the Flotation Mechanism of Tantalite-Niobite Minerals with Styrenephosphonic Acid Collector
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作者 Huang, Jianhui Li, Yukang +1 位作者 Sun, Ji Dong, Ronggeng 《Rare Metals》 SCIE EI CAS CSCD 1990年第2期81-88,共8页
The flotability and mechanism of tantalite-niobite minerals which have different contents of Ta, Nb, Fe Mn using styrenephosphonic acid (SPA) were investigated. The optimum pH value in pulp is less than 5, flotability... The flotability and mechanism of tantalite-niobite minerals which have different contents of Ta, Nb, Fe Mn using styrenephosphonic acid (SPA) were investigated. The optimum pH value in pulp is less than 5, flotability varies with the different contents of mineral, and flotability of minerals with higher Nb2O5 content is better than that with higher Ta2O5 content. In wide range of pH in solution, the Fe, Mn on the surface are the main active species for flotation. Research using Auger electron spectroscopy, infrared spectroscopy and ultraviolet spectroscopy for determining surface conditions has been done. SPA interacts with Fe, Mn ions on the surface by a chemical bond force. On the outer layer of the collector, which is a non-uniform multilayer, adsorption of SPA on surface is both chemico-adsorption and physico-adsorption, but chemico-adsorption is dominant. 展开更多
关键词 Hydrogen Ion Concentration niobium ore treatment FLOTATION
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