Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution

Using ferric chloride as an oxidant, here, we investigated the leaching effect of low-nickel matte in a flow field produced by mechanical agitation. The factors affecting a leaching reaction, such as stirring speed, leaching time, low-nickel matte particle size, and inert abrasive quartz sand, were...

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Autores principales:	Chuncheng Zhu, Yu Lei, Xinbo Hu, Qian Xu, Xingli Zou, Hongwei Cheng, Xionggang Lu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	low-nickel matte interfacial reaction barrier layer inert abrasive FeCl<sub>3</sub>-HCl-H<sub>2</sub>O solution Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/cdf5c6b5a848434786e54eb3eae046ec
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spelling	oai:doaj.org-article:cdf5c6b5a848434786e54eb3eae046ec2021-11-25T18:26:22ZEffective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution10.3390/min111112192075-163Xhttps://doaj.org/article/cdf5c6b5a848434786e54eb3eae046ec2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1219https://doaj.org/toc/2075-163XUsing ferric chloride as an oxidant, here, we investigated the leaching effect of low-nickel matte in a flow field produced by mechanical agitation. The factors affecting a leaching reaction, such as stirring speed, leaching time, low-nickel matte particle size, and inert abrasive quartz sand, were studied. X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), a laser particle size analyzer, optical microscopy (OM), a scanning electron microscopy (SEM) with an energy dispersive X-ray detector (EDS), and a Raman spectrometer were used to characterize the materials before and after the leaching reaction. The contents of the main metal ions such as Ni, Cu, and Co in the leaching solution were analyzed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). Using the control variable method, the optimal experimental conditions were as follows: 2 mol/L FeCl<sub>3</sub>—0.5 mol/L HCl-H<sub>2</sub>O system with low-nickel matte and quartz sand (mass ratio is 1:5) and leaching at 90 °C for 8 h. The results showed that the blocking effect of the solid product sulfur layer was effectively removed and continuous leaching was realized. The leaching efficiencies of Ni, Cu, and Co were 98.9%, 99.3%, and 98.1%, respectively.Chuncheng ZhuYu LeiXinbo HuQian XuXingli ZouHongwei ChengXionggang LuMDPI AGarticlelow-nickel matteinterfacial reactionbarrier layerinert abrasiveFeCl<sub>3</sub>-HCl-H<sub>2</sub>O solutionMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1219, p 1219 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	low-nickel matte interfacial reaction barrier layer inert abrasive FeCl<sub>3</sub>-HCl-H<sub>2</sub>O solution Mineralogy QE351-399.2
spellingShingle	low-nickel matte interfacial reaction barrier layer inert abrasive FeCl<sub>3</sub>-HCl-H<sub>2</sub>O solution Mineralogy QE351-399.2 Chuncheng Zhu Yu Lei Xinbo Hu Qian Xu Xingli Zou Hongwei Cheng Xionggang Lu Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
description	Using ferric chloride as an oxidant, here, we investigated the leaching effect of low-nickel matte in a flow field produced by mechanical agitation. The factors affecting a leaching reaction, such as stirring speed, leaching time, low-nickel matte particle size, and inert abrasive quartz sand, were studied. X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), a laser particle size analyzer, optical microscopy (OM), a scanning electron microscopy (SEM) with an energy dispersive X-ray detector (EDS), and a Raman spectrometer were used to characterize the materials before and after the leaching reaction. The contents of the main metal ions such as Ni, Cu, and Co in the leaching solution were analyzed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). Using the control variable method, the optimal experimental conditions were as follows: 2 mol/L FeCl<sub>3</sub>—0.5 mol/L HCl-H<sub>2</sub>O system with low-nickel matte and quartz sand (mass ratio is 1:5) and leaching at 90 °C for 8 h. The results showed that the blocking effect of the solid product sulfur layer was effectively removed and continuous leaching was realized. The leaching efficiencies of Ni, Cu, and Co were 98.9%, 99.3%, and 98.1%, respectively.
format	article
author	Chuncheng Zhu Yu Lei Xinbo Hu Qian Xu Xingli Zou Hongwei Cheng Xionggang Lu
author_facet	Chuncheng Zhu Yu Lei Xinbo Hu Qian Xu Xingli Zou Hongwei Cheng Xionggang Lu
author_sort	Chuncheng Zhu
title	Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
title_short	Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
title_full	Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
title_fullStr	Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
title_full_unstemmed	Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution
title_sort	effective removal of barrier layer on the surface of low-nickel matte in an fecl<sub>3</sub>-hcl-h<sub>2</sub>o solution
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cdf5c6b5a848434786e54eb3eae046ec
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Effective Removal of Barrier Layer on the Surface of Low-Nickel Matte in an FeCl<sub>3</sub>-HCl-H<sub>2</sub>O Solution

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