Polymer-stabilized emulsions and fine-particle recovery,II. The chalcopyrite-quartz system |
| |
| Authors: | W Kent J Ralston |
| |
| Institution: | School of Chemical Technology, South Australian Institute of Technology, P.O. Box 1, Ingle Farm, S.A., 5098, Australia |
| |
| Abstract: | The interaction between fine, generally ?2 μm chalcopyrite and polymer-stabilized oil droplets has been studied as a function of pH and weight percent solids in the pH range from 5 to 12. Oil droplets stabilized by partially esterified polymethacrylic acid and cellulose xanthate have been used as collectors. Chalcopyrite may be efficiently separated from fine quartz gangue at pH 11, using cellulose xanthate stabilized emulsions. Good recovery and grade may be obtained at pH 11 up to pulp densities of at least 5.1 wt.%. At other pH values, selectivity is poor due to Cu11 species from chalcopyrite activating the quartz surface. |
| |
| Keywords: | To whom all correspondence should be addressed |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
