CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Sulfur removal from bauxite water slurry (BWS) electrolysis intensified by ultrasonic
Ge, Lan1; Gong, Xuzhong1; Wang, Zhi1; Zhao, Lixin2; Wang, Yuhua1; Wang, Mingyong1
2015-09-01
Source PublicationULTRASONICS SONOCHEMISTRY
ISSN1350-4177
Volume26Issue:SEPPages:142-148
Abstract

Effects of ultrasonic on desulfurization ratio from bauxite water slurry (BWS) electrolysis in NaOH solution were examined under constant current. The results indicated that ultrasonic improved the desulfurization ratio at high temperatures because of the diffusion and transfer of oxygen gas in electrolyte. However, due to the increase in oxygen gas emission, ultrasonic could not improve the desulfurization ratio obviously at low temperatures. Additionally, the particle size of bauxite became fine in the presence of ultrasonic, indicating that the mass transfer of FeS2 phase was improved. According to the polarization curves, the current density increased in the presence of ultrasonic, indicating that the mass transfer of liquid phase was improved. The apparent activation energy (AAE) of electrode reaction revealed that ultrasonic did not change the pathway of water electrolysis. However, ultrasonic changed the pathway of BWS electrolysis, converting indirect oxidation into direct oxidation. The ME of BWS electrolysis in the presence of ultrasonic was higher than that in the absence of ultrasonic. And the low AAEs (less than 20 kJ/mol) clearly indicated the diffusion control during BWS electrolysis reaction. (C) 2015 Elsevier B.V. All rights reserved.

KeywordElectrolysis Desulfurization High Sulfur Bauxite Ultrasonic Polarization Curve Kinetics
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.ultsonch.2015.03.010
Indexed BySCI
Language英语
WOS KeywordELECTROCHEMICAL OXIDATION ; AQUEOUS-SOLUTION ; IONIC LIQUID ; PYRITE FES2 ; ACID ; COAL ; DESULFURIZATION ; ELECTRODES ; OXYGEN ; DEGRADATION
WOS Research AreaAcoustics ; Chemistry
WOS SubjectAcoustics ; Chemistry, Multidisciplinary
WOS IDWOS:000355024300019
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19248
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Tianjin Univ Technol, Dept Environm Sci & Safety Engn, Tianjin 300384, Peoples R China
Recommended Citation
GB/T 7714
Ge, Lan,Gong, Xuzhong,Wang, Zhi,et al. Sulfur removal from bauxite water slurry (BWS) electrolysis intensified by ultrasonic[J]. ULTRASONICS SONOCHEMISTRY,2015,26(SEP):142-148.
APA Ge, Lan,Gong, Xuzhong,Wang, Zhi,Zhao, Lixin,Wang, Yuhua,&Wang, Mingyong.(2015).Sulfur removal from bauxite water slurry (BWS) electrolysis intensified by ultrasonic.ULTRASONICS SONOCHEMISTRY,26(SEP),142-148.
MLA Ge, Lan,et al."Sulfur removal from bauxite water slurry (BWS) electrolysis intensified by ultrasonic".ULTRASONICS SONOCHEMISTRY 26.SEP(2015):142-148.
Files in This Item:
File Name/Size DocType Version Access License
Sulfur removal from (1145KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ge, Lan]'s Articles
[Gong, Xuzhong]'s Articles
[Wang, Zhi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ge, Lan]'s Articles
[Gong, Xuzhong]'s Articles
[Wang, Zhi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ge, Lan]'s Articles
[Gong, Xuzhong]'s Articles
[Wang, Zhi]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.