螢石, 石英の浮遊性に及ぼすドデシル・ベンゼン・スルホン酸ソーダの影響

抄録

The floatability of fluorite and quartz and the adsorption of dodecyl benzen sulphonate ion at those minerals-solution interfaces were measured as a function of collector concentration and pH, and the correlations of the floatability and the adsorption were discussed.
The results are as follows:
(1) The floatability of fluorite is remarkably influenced by the collector concentration and pH, On the other hand, the floatability of quartz is extremely low under the same flotation conditions, These results are shown in fig. 5 and 6.
(2) The adsorption of the collector ion on fluorite surface is remarkably influenced by the collector concentration and pH. Under the constant pH, the adsorption increases with the collector concentration and under the constant collector concentration, the adsorption increases with hydrogenion concentration. These results are shown in fig. 9 and 10.
(3) The surface coverage at the critical flotation conditions and the standard free energy change of the adsorption were calculated.