高岭石和蒙脱石存在下黄铜矿浮选主要参数的影响评价
Evaluation of the effect of the main parameters on chalcopyrite flotation in the presence of kaolinite and montmorillonite
Hasan Ali TANER 1Vildan ONEN1
作者信息
- 1. Mining Engineering Department,Konya Technical University,Konya,Turkey
- 折叠
摘要
黏土矿物对硫浮选有负面影响.在本研究中,研究了黏土矿物(高岭石-蒙脱石)对黄铜矿浮选的影响,旨在提出能够消除负面影响的解决方案.进行ζ-电位测量和浮选实验,采用中心复合设计方法,选取起泡剂浓度、分散剂浓度、泡沫高度、空气流速和黏土量为变量.在对测试结果的评估中,将这5个重要变量定为因变量.随着黏土量的增加,黄铜矿品位降低,而黄铜矿回收率、黄铁矿回收率和动态泡沫稳定性增加.黄铜矿浮选的负相互作用顺序为蒙脱石>高岭石,说明使用蒙脱石可获得较大的气泡直径.对矿石中的黏土类型(高岭石和蒙脱石)适用的浮选条件进行数学建模,该模型预测了与矿石的黏土比的相关条件随时间的变化,以及浮选获得的品位回收值.
Abstract
Clay minerals are known to negatively affect sulfur flotation.In the present study,the effect of clay minerals(kaolinite-montmorillonite)on chalcopyrite flotation was investigated and it was aimed to propose solutions to eliminate the negative effects.In the experimental studies,ζ-potential measurements and flotation experiments were carried out.The central composite design method was used in the flotation experiments and the independent variables were selected as frother concentration,dispersant concentration,froth height,air flow rate and amount of clay.In the evaluation of the test results,5 important variables were determined as dependent variables.While the chalcopyrite grade decreased as the amount of clay increased,and chalcopyrite recovery,pyrite recovery and dynamic froth stability increased.The negative interaction order was determined as montmorillonite>kaolinite in terms of chalcopyrite flotation.Larger bubble diameter was obtained with montmorillonite.The flotation conditions that can be applied for the clay type(kaolinite and montmorillonite)found in the ore are mathematically modeled.Thus,the changes of the conditions in the model depending on the clay ratio that changes over time in the ore and the predictability of the grade-recovery values that can be obtained as a result of flotation will be ensured.
关键词
黏土矿物/动态泡沫稳定性/浮选/响应面模型/ζ-电位Key words
clay minerals/dynamic froth stability/flotation/response surface model/ζ-potential引用本文复制引用
基金项目
Selcuk University,Turkey(16401051)
出版年
2023
NETL
NSTL
维普
万方数据