Fluoride removal in zinc sulfate solution by adsorption on lanthanum silicate elimination du fluorure dans une solution de sulfate de zinc par adsorption sur le silicate de lanthane

被引：1

作者：

Wang, Mingyu ^{[1
]}

Zhang, Guoqi ^{[1
]}

Liao, Zhiqin ^{[1
]}

Zhang, Guiqing ^{[1
]}

Li, Qinggang ^{[1
]}

Cao, Zuoying ^{[1
]}

Guan, Wenjuan ^{[1
]}

Wu, Shengxi ^{[1
]}

Liu, Qiuxiang ^{[2
]}

机构：

[1] Cent South Univ, Sch Met & Environm, 932 Lushan South Rd, Changsha 410083, Peoples R China

[2] Zhejiang Light Ind Prod Inspect & Res Inst, Hangzhou, Peoples R China

来源：

CANADIAN METALLURGICAL QUARTERLY | 2024年 / 63卷 / 03期

关键词：

Fluorine removal; adsorption; lanthanum silicate; zinc electrolyte; ALUMINUM;

D O I：

10.1080/00084433.2023.2232975

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Lanthanum silicate adsorbent was synthesized and applied to the deep removal of fluorine in a zinc sulfate solution. The effect of adsorbent addition, reaction temperature, reaction time, solution pH value, initial fluorine concentration, and adsorption kinetics was investigated. The adsorption capacity of lanthanum silicate to fluorine can reach 150.0 mg/g. Kinetics analysis revealed that the adsorption of fluoride on lanthanum silicate is controlled by a combination of chemisorption and internal diffusion processes. In the rapid reaction stage, physical adsorption is dominant. In the slow reaction stage, chemisorption is dominant. The loaded lanthanum silicate adsorbent can be regenerated by NaOH solution.

引用

页码：870 / 881

页数：12

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