Research on the Adsorption of Humic Acid on Pyrite Surface

被引：5
|
作者：
Huang, Yanfang [1 ]
Chen, Huilan [1 ]
Han, Guihong [1 ]
机构：
[1] Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Peoples R China
来源：
LIGHT METALS 2018 | 2018年
关键词：
Pyrite; Humic acid; Adsorption; ORGANIC-MATTER; SORPTION; MECHANISMS; CHITOSAN;
D O I：
10.1007/978-3-319-72284-9_27
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
There are limited researches on the adsorption mechanism of humic acid depressant on pyrite in the flotation of bauxite. The adsorption behaviors of humic acid on pyrite were studied in this work. The effects of pH, ionic strength and temperature on the adsorption were discussed. The results demonstrate that the adsorption capacity decreased with the increase of pH, while increased with the increase of ionic strength. The kinetic data can be fitted with quasi-second order kinetic equation. The adsorption was in accordance with Freundlich adsorption model. The adsorption of humic acid on pyrite was exothermic reaction.
引用
收藏
页码：197 / 202
页数：6
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