Modelling effects of dissolved ions in process water on flotation performance
Modelling effects of dissolved ions in process water on flotation performance
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DOI：
10.1016/j.mineng.2018.08.031
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发表时间：
2018-11
影响因子：
4.8
通讯作者：
Ozlem Bicak;Y. Ozturk;Elif Ozdemir;Z. Ekmekci
中科院分区：
文献类型：
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作者：
Ozlem Bicak;Y. Ozturk;Elif Ozdemir;Z. Ekmekci
采矿和矿物加工业从勘探、采矿和加工到关闭的所有作业都需要水。在所有矿物浮选应用中，浮选受工艺用水质量的影响最大。工艺用水含有几乎所有类型的溶解离子，这取决于矿石特性，如表面化学、矿物学和表面氧化。文献中对单离子对浮选性能的影响有一个普遍的认识。然而，至关重要的是要证明在工艺用水中的主要离子的相互作用，定量使用数学建模，以控制离子污染的上限。在本研究中，影响复杂铜锌矿石浮选性能的主要离子被确定为Ca 2+、Cu 2+和S2 O32-。利用设计专家软件进行了实验设计。统计实验设计允许推导数学模型，表达品位和回收率作为水化学的函数。这些模型被用来估计一个有效的浮选过程中的溶解离子的临界浓度。
The mining and mineral processing industries need water in all of their operations, from exploration, through mining and processing to closure. Flotation is the most affected by the quality of the process water in all of mineral beneficiation applications. Process water contains dissolved ions of almost all types depending on ore characteristics such as surface chemistry, mineralogy and surface oxidation. There is a general understanding about influence of individual ions on flotation performance in literature. However, it is crucial to demonstrate interactive effects of the major ions in a process water quantitatively using mathematical modelling to control the upper limits of ion contaminations. In this study the major ions affecting flotation performance of a complex Cu-Zn ore were determined to be Ca2+, Cu2+and S2O32−. An experimental design has been done by using Design Expert Software. The statistical experimental design allowed derivation of mathematical models expressing grade and recovery as a function of water chemistry. These models were used to estimate critical concentration of the dissolved ions for an efficient flotation process.