Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5348337 | Applied Surface Science | 2015 | 7 Pages |
Abstract
The flotability of wet and dry ground spodumene was found different when sodium oleate was used as a collector, and the flotation recovery of wet ground spodumene was higher than that of dry ground spodumene. It is well known that the flotability of minerals is closely related with their crystal structures and surface properties, therefore morphology and structure examinations on wet and dry ground spodumene were performed by SEM and XRD. It was confirmed that wet ground spodumene had smoother surface and more exposed {1 1 0} and {1 0 0} planes, while more exposed {0 1 0} planes were found on dry ground spodumene surface. The specific surface areas of wet and dry ground spodumene in size fraction of â105 + 38 μm were determined to be 0.252 m2/g and 0.382 m2/g, respectively. However, the maximum adsorption densities of sodium oleate on wet and dry ground spodumene were 21.5 Ã 10â6 mol/m2 and 12.5 Ã 10â6 mol/m2, respectively. The densities of surface AlO broken bonds were calculated to be 6.376 Ã 1018, 4.351 Ã 1018 and 14.057 Ã 1018/m2 for {1 1 0}, {0 1 0} and {1 0 0}, respectively. The result indicated that {1 0 0} and {1 1 0} planes were more favorable for the adsorption of oleic acid ion than {0 1 0} plane.
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Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Guangli Zhu, Yuhua Wang, Xiaowen Liu, Fushun Yu, Dongfang Lu,