Influence of Sodium Phosphate Salts with Different Chain Length on the Flotation Behavior of Magnesite and Dolomite

被引：14
|
作者：
Bai, Junzhi [1 ]
Wang, Jizhen [2 ]
Yin, Wanzhong [1 ]
Chen, Xiangxiang [3 ]
机构：
[1] Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
[2] Xian Univ Sci & Technol, Sch Chem & Chem Engn, Xian 710054, Peoples R China
[3] Fuzhou Univ, Coll Zijin Min, Fuzhou 350108, Peoples R China
来源：
MINERALS | 2020年 / 10卷 / 11期
基金：
中国国家自然科学基金;
关键词：
magnesite; dolomite; phosphate; depressant; flotation; SEPARATION; SURFACE;
D O I：
10.3390/min10111031
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
This paper analyzes the influence of sodium phosphate salts with different chain lengths as depressants on the flotation behavior of magnesite and dolomite through single mineral flotation test, contact angle test, and theoretical analysis. Flotation tests show that depressants should be added for the flotation separation of magnesite and dolomite. The inhibition of sodium phosphate salts on dolomite is significantly stronger than magnesite, and the flotation difference of minerals is affected by the chain length of phosphate depressants. The order of flotation separation enhancement of different sodium phosphate depressants is sodium hexametaphosphate approximate to sodium tetrapolyphosphate > sodium tripolyphosphate > sodium pyrophosphate. This result could also be supported by the contact angle measurement.
引用
收藏
页码：1 / 11
页数：11
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