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Vol. 25 No. 5 (2013): Vol 25 Issue 5

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Removal of Fluorine from the Waste Acid of Lead Smelter

https://doi.org/10.14233/ajchem.2013.14071
Jiayuan Li
School of Metallurgical Science and Engineering, Central South University, Changsha 410083, P.R. China ; Department of Chemical Engineering and Life Science, Xiangnan University, Chenzhou 423000, P.R. China
Tianzu Yang
School of Metallurgical Science and Engineering, Central South University, Changsha 410083, P.R. China
Zhaoan Zhou
School of Metallurgical Science and Engineering, Central South University, Changsha 410083, P.R. China

Corresponding Author(s) : Jiayuan Li

lijiayuanchen@yahoo.com.cn

Asian Journal of Chemistry, Vol. 25 No. 5 (2013): Vol 25 Issue 5

Abstract

Based on thermodynamic data, using lead ions to remove the fluoride in the waste acid solution was studied. Lead-fluoride ion-water system E-log [F–] diagram and the solubility curve of lead fluoride was drawn at 25 ºC. When lead oxide or the other materials such as the lead blast furnace dust and lead ash were used as the precipitant, the removal rate of fluoride is more than 90 % under proper conditions in the waste acid solution.

Keywords

Lead fluoride Lead-fluoride ion-water system Thermodynamics Waste acid
Li, J., Yang, T., & Zhou, Z. (2012). Removal of Fluorine from the Waste Acid of Lead Smelter. Asian Journal of Chemistry, 25(5), 2849–2852. https://doi.org/10.14233/ajchem.2013.14071
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