Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling

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	Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling
	Gong, Xuzhong; Wang, Zhi; Zhuang, Siyuan; Wang, Dong; Wang, Yuhua; Wang, Mingyong
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
	2017-02-01
卷号	48 期号:1 页码:726-732
ISSN号	1073-5615
英文摘要	The recycling of NaCl used as supporting electrolyte for bauxite electrolysis was carried out in this study. The electrolyte was regenerated by adding anhydrous CaCl2 into the solution after filtration, and effects of electrolyte characterization on bauxite electrolysis were examined by observing the change in desulfurization ratio and cell voltage. The results indicated that the desulfurization ratio increased with increasing recycling times of electrolyte. In the meantime, the increase in recycling times has led to the decrease in pH value as well as the increase in Fe ion concentration in the electrolyte, which were the main reasons for the increase in the desulfurization ratio with increasing recycling of electrolyte. The pH value of electrolyte after second electrolysis was lower than 1.5, and the desulfurization ratio increased obviously due to the increase in Fe3+ concentration and suppression of jarosite formation. The increase in Ca2+ concentration did not apparently change desulfurization ratio and anode surface activity. However, with Ca2+ addition, the cathode surface was covered by CaSO4 center dot nH(2)O, thus resulting in the increase of cell voltage. (C) The Minerals, Metals & Materials Society and ASM International 2016
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	SLURRY BWS ELECTROLYSIS ; SULFUR REMOVAL ; WATER SLURRY ; PYRITE OXIDATION ; CATALYTIC-OXIDATION ; ORGANIC SULFUR ; COAL ; KINETICS ; SYSTEM ; NATROJAROSITE
收录类别	SCI
语种	英语
WOS记录号	WOS:000392295500069
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21884]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Gong, Xuzhong,Wang, Zhi,Zhuang, Siyuan,et al. Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2017,48(1):726-732.
APA	Gong, Xuzhong,Wang, Zhi,Zhuang, Siyuan,Wang, Dong,Wang, Yuhua,&Wang, Mingyong.(2017).Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,48(1),726-732.
MLA	Gong, Xuzhong,et al."Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 48.1(2017):726-732.