复杂伟晶岩铝硅酸盐矿物晶体结构与表面特性和可浮性的关系

发布时间：2018-06-18 11:15

本文选题：铝硅酸盐矿物 + 晶体结构　；参考：《金属矿山》2017年08期

【摘要】：基于复杂伟晶岩铝硅酸盐矿物锂辉石、绿柱石、石榴子石、长石和云母晶体结构复杂,表面物理化学性质的各向异性显著,表面化学性质相似,表面活性质点皆为Al~(3+),与传统的脂肪酸类捕收剂作用的选择性差等特点,对复杂伟晶岩铝硅酸盐的晶体结构与可浮性关系进行分析,以期为复杂伟晶岩铝硅酸矿物浮选分离提供理论借鉴。研究表明,不同铝硅酸盐矿物解离时矿物表面的诸多性质如:化学键的断裂程度、暴露元素的数量和种类、Al~(3+)对Si~(4+)的替代程度及Al的配位方式等的不同直接影响着矿物的可浮性,而导致铝硅酸盐矿物解离时表面性质差异的深层次原因是它们晶体结构的差异。
[Abstract]:Based on the complex pegmatite aluminosilicate minerals spodumene, Beryl, pomegranate, feldspar and mica with complex crystal structure, the anisotropy of physical and chemical properties of the surface is obvious, and the surface chemical properties are similar. The relationship between the crystal structure and floatability of aluminosilicate of complex pegmatite is analyzed, which is characterized by the difference of selectivity between the surface active particle and the traditional fatty acid collector. In order to provide theoretical reference for the flotation separation of aluminosilicate minerals in complex pegmatite. The results show that the surface properties of different aluminosilicate minerals such as the degree of fracture of chemical bond, The amount and type of the exposed elements (Alf3) have a direct effect on the floatability of the minerals, such as the substitution degree of Si-4) and the coordination mode of Al, and so on, which have a direct effect on the floatability of the minerals. The deep reason for the difference in surface properties of aluminosilicate minerals is the difference of their crystal structure.
【作者单位】：西南科技大学环境与资源学院;固体废物处理与资源化教育部重点实验室;中南大学资源加工与生物工程学院;
【基金】：国家自然科学基金项目(编号:51674207,51304162) 西南科技大学实验技术研究项目(编号:16syjs11)
【分类号】：TD91

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