Roles of Electrolyte Characterization on Bauxite Electrolysis Desulfurization with Regeneration and Recycling
Gong, Xuzhong; Wang, Zhi; Zhuang, Siyuan; Wang, Dong; Wang, Yuhua; Wang, Mingyong
2017-02-01
发表期刊METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN1073-5615
卷号48期号:1页码:726-732
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
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1007/s11663-016-0841-4
收录类别SCI
语种英语
关键词[WOS]SLURRY BWS ELECTROLYSIS ; SULFUR REMOVAL ; WATER SLURRY ; PYRITE OXIDATION ; CATALYTIC-OXIDATION ; ORGANIC SULFUR ; COAL ; KINETICS ; SYSTEM ; NATROJAROSITE
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者Natural Science Foundation of China(51004090 ; Youth Innovation Promotion Association, CAS(2015036) ; 51474198)
WOS记录号WOS:000392295500069
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21884
专题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
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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.
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