Impact of gypsum on flotation of scheelite and fluorite using sodium oleate as collector

被引：4
作者：
Zhang, Zhiguo [1 ,2 ]
Cao, Yijun [2 ,3 ]
Ma, Zilong [2 ]
Liao, Yinfei [2 ]
机构：
[1] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou, Jiangsu, Peoples R China
[2] China Univ Min & Technol, Chinese Natl Engn Res Ctr Coal Preparat & Purific, Xuzhou 221116, Jiangsu, Peoples R China
[3] Zhengzhou Univ, Henan Prov Ind Technol Res Inst Resources & Mat, Zhengzhou, Henan, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Scheelite; fluorite; gypsum; calcium ion; sulfate ion; SELECTIVE FLOTATION; CALCIUM-IONS; CONTACT-ANGLE; ADSORPTION; SURFACE; SEPARATION; SILICATE; BEHAVIOR; SULFATE; MECHANISM;
D O I：
10.1080/01496395.2019.1634734
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, effect of calcium and gypsum on scheelite and fluorite was investigated using sodium oleate as collector. Micro-flotation and contact angle results showed that the adsorption of calcium could inhibit the hydrophobicity of scheelite and fluorite. Moreover, sulfate could enhance the inhibition. FT-IR results showed that calcium could be priori precipitated into calcium oleate and adsorb on mineral surface. The adsorption of calcium could increase the scheelite potential to IEP, while it showed limited effect on fluorite potential. However, the interaction of calcium on scheelite and fluorite in gypsum solution was more complex than that in calcium solution.
引用
收藏
页码：2528 / 2537
页数：10
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