Elsevier
Applied Surface Science
,  volume 514 ,  pages 145851

Effect of ammonium salt on the stability of surface sulfide layer of smithsonite and its flotation performance

Publication type: Journal Article
Publication date: 2020-06-01
Elsevier
scimago Q1
wos Q1
SJR: 1.310
CiteScore: 13.4
Impact factor: 6.9
ISSN: 01694332, 18735584
Surfaces, Coatings and Films
General Chemistry
General Physics and Astronomy
Condensed Matter Physics
Surfaces and Interfaces
Abstract
The sulfidization–xanthate method is an important method for recovering smithsonite. As the sulfidization time increases, the newly formed sulfidization layer on the smithsonite surface is unstable, which causes attenuation and affects the recovery efficiency. We studied the stability of the sulfidization layer of smithsonite and the effect of ammonium chloride on the sulfidization layer by microflotation experiments, sulfur adsorption test, X-ray photoelectron spectroscopy and time-of-flight secondary mass spectrometry. Microflotation experiments results showed that ammonium-chloride addition can increase the recovery efficiency of the smithsonite by ~10%. Sulfur adsorption test results showed that after ammonium-chloride addition, more sulfur components were formed on the smithsonite surface. XPS results showed that after ammonium-chloride addition, the atomic concentration of the surface sulfur component increased from 0.09% to 2.38%. ToF-SIMS results showed that the newly formed sulfide component was more evenly distributed and the surface of the sulfide layer was smoother. The sulfur composition and sulfide layer thickness increased significantly, which increased the sulfide layer stability and improved the recovery efficiency of the smithsonite. All these details have established that the ammonium chloride has a good promoting effect on the sulfidization of smithsonite and increases the sulfidization layer stability.
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GOST Copy
Bai X. et al. Effect of ammonium salt on the stability of surface sulfide layer of smithsonite and its flotation performance // Applied Surface Science. 2020. Vol. 514. p. 145851.
GOST all authors (up to 50) Copy
Bai X., Liu J., Wen S., Wang Yu., Lin Y. Effect of ammonium salt on the stability of surface sulfide layer of smithsonite and its flotation performance // Applied Surface Science. 2020. Vol. 514. p. 145851.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1016/j.apsusc.2020.145851
UR - https://doi.org/10.1016/j.apsusc.2020.145851
TI - Effect of ammonium salt on the stability of surface sulfide layer of smithsonite and its flotation performance
T2 - Applied Surface Science
AU - Bai, Xu
AU - Liu, Jian
AU - Wen, Shuming
AU - Wang, Yu
AU - Lin, Yilin
PY - 2020
DA - 2020/06/01
PB - Elsevier
SP - 145851
VL - 514
SN - 0169-4332
SN - 1873-5584
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2020_Bai,
author = {Xu Bai and Jian Liu and Shuming Wen and Yu Wang and Yilin Lin},
title = {Effect of ammonium salt on the stability of surface sulfide layer of smithsonite and its flotation performance},
journal = {Applied Surface Science},
year = {2020},
volume = {514},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016/j.apsusc.2020.145851},
pages = {145851},
doi = {10.1016/j.apsusc.2020.145851}
}