Effect and mechanism of acetylacetone on desilication and decalcification from magnesite by one-step reverse flotation

被引：0
|
作者：
Ma Y.-Q. [1 ]
Cheng G.-B. [1 ]
Wang C. [2 ]
Yin W.-Z. [1 ,3 ]
Rao F. [1 ]
Zhao W.-X. [1 ]
Liu J.-Y. [1 ]
机构：
[1] Zijin School of Geology and Mining, Fuzhou University, Fuzhou
[2] School of Minerals Processing and Bioengineering, Central South University, Changsha
[3] College of Resources and Civil Engineering, Northeastern University, Shenyang
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2022年 / 32卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Acetylacetone; Desilication and decalcification; Dodecylamine; Magnesite; One-step reverse flotation;
D O I：
10.11817/j.ysxb.1004.0609.2021-42704
中图分类号：
学科分类号：
摘要：
Under the flotation system of dodecylamine collector, the effects of acetylacetone on desilication and decalcification from magnesite by one-step reverse flotation were investigated through the flotation test of single mineral and artificial mixed ore. The mechanisms of acetylacetone on flotation desilication and decalcification of magnesite were discussed through the analysis of mineral surface Zeta potential and infrared spectra before and after the action of reagent. The results show that acetylacetone has a certain inhibitory effect on magnesite, but has no obvious effect on dolomite and quartz. Acetylacetone has a good separation effect on reverse flotation desilication and decalcification of magnesite. Acetylacetone forms more magnesium containing complexes on the surface of magnesite than on the surface of dolomite. The adsorption capacity is large and stable, which enhances the positive electricity of the mineral surface, and is not conducive to the adsorption of collector dodecylamine on the surface of magnesite, resulting in strong inhibition of magnesite. Acetylacetone hardly adsorbs on the surface of quartz, it does not affect the adsorption of dodecylamine on the surface of quartz. © 2022, China Science Publishing & Media Ltd. All right reserved.
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页码：3123 / 3133
页数：10
相关论文
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