中南大學學報(英文版)
Journal of Central South University
Vol. 9 No. 1 March 2002 |
(Department ofMineral Engineering, Central South University, Changsha410083, China)
Abstract:The flotation properties of single minerals such as diaspore, kaolinite and pyrophllite in bauxites were investigated using RL as collector. The effects of regulators and unavoidable ions on flotation were studied. Based on the results of single minerals flotation, the separation experiments of mixed minerals and bauxite ore were carried out. The results of closed circuitteston the ore show that, using RLas collector, Na2CO3 and (NaPO3)6as modifiers, the grade of Al2O3and SiO2are respectively 70.74% and 6.37% in concentrate (Al/Si 11.11), and the recovery of Al2O3can reach 90.52%.
Key words: collector; modifier; unavoidable ion; flotation properties; bauxite