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首页> 外文期刊>Applied Surface Science >The cleavage and surface properties of wet and dry ground spodumene and their flotation behavior
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The cleavage and surface properties of wet and dry ground spodumene and their flotation behavior

机译：干湿锂辉石的劈裂和表面特性及其浮选行为

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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 -105 + 38 mu m were determined to be 0.252 m(2)/g and 0.382 m(2)/g, respectively. However, the maximum adsorption densities of sodium oleate on wet and dry ground spodumene were 21.5 x 10(-6) mol/m(2) and 12.5 x 10(-6) mol/m(2), respectively. The densities of surface Al-O broken bonds were calculated to be 6.376 x 10(18), 4.351 x 10(18) and 14.057 x 10(18)/m(2) 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. (C) 2015 Elsevier B.V. All rights reserved.
机译：当使用油酸钠作为捕收剂时，发现湿式和干式锂辉石的浮选性不同，并且湿式锂辉石的浮选回收率高于干式锂辉石的浮选回收率。众所周知，矿物的可浮性与它们的晶体结构和表面性质密切相关，因此，通过SEM和XRD对湿的和干的锂辉石进行形态和结构检查。可以确认，湿的锂辉石表面更光滑，{1 1 0}和{1 0 0}面更暴露，而在干燥的锂辉石表面发现{0 1 0}面更暴露。湿式和干式锂辉石的比表面积分别为-105 + 38μm，确定为0.252 m（2）/ g和0.382 m（2）/ g。但是，油酸钠在湿和干磨锂辉石上的最大吸附密度分别为21.5 x 10（-6）mol / m（2）和12.5 x 10（-6）mol / m（2）。对于{1 1 0}，{0 1 0}，计算得出的表面Al-O断裂键的密度分别为6.376 x 10（18），4.351 x 10（18）和14.057 x 10（18）/ m（2）。和{1 0 0}。结果表明，{1 0 0}和{1 1 0}面比{0 1 0}面更有利于油酸离子的吸附。 （C）2015 Elsevier B.V.保留所有权利。

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