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Surface chemistry aspects of bastnaesite flotation with octyl hydroxamate
Alternative TitleInt. J. Miner. Process.
Zhang, Xia1; Du, Hao2; Wang, Xuming1; Miller, J. D.1
2014-12-10
Source PublicationINTERNATIONAL JOURNAL OF MINERAL PROCESSING
ISSN0301-7516
Volume133Issue:DEC.Pages:29-38
AbstractSurface chemistry features of bastnaesite were investigated with respect to octyl hydroxamate adsorption and the wetting characteristics at different levels of hydroxamate adsorption. The wetting characteristics of bastnaesite in the absence of collector adsorption were examined using both contact angle measurements and MD simulations. As expected, it was found that bastnaesite is naturally hydrophilic. Surface chemistry studies included octyl hydroxamate adsorption by the solution depletion method. The surface state was described by sum-frequency vibrational spectroscopy (SFVS) and molecular dynamic simulations (MDS). The adsorption isotherm at low levels of hydroxamate adsorption was established and the hydrophobic surface state was described from contact angle measurements. The relationship between hydrophobicity and adsorption density was examined for the first time by MD simulations. The SFVS spectra indicate that a well-ordered monolayer was formed at a hydroxamate concentration of about 1 x 10(-4) M. (C) 2014 Elsevier B.V. All rights reserved.; Surface chemistry features of bastnaesite were investigated with respect to octyl hydroxamate adsorption and the wetting characteristics at different levels of hydroxamate adsorption. The wetting characteristics of bastnaesite in the absence of collector adsorption were examined using both contact angle measurements and MD simulations. As expected, it was found that bastnaesite is naturally hydrophilic. Surface chemistry studies included octyl hydroxamate adsorption by the solution depletion method. The surface state was described by sum-frequency vibrational spectroscopy (SFVS) and molecular dynamic simulations (MDS). The adsorption isotherm at low levels of hydroxamate adsorption was established and the hydrophobic surface state was described from contact angle measurements. The relationship between hydrophobicity and adsorption density was examined for the first time by MD simulations. The SFVS spectra indicate that a well-ordered monolayer was formed at a hydroxamate concentration of about 1 x 10(-4) M. (C) 2014 Elsevier B.V. All rights reserved.
KeywordOctyl Hydroxamate Adsorption Bastnaesite Contact Angle Mds Sfvs
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.minpro.2014.08.009
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSUM-FREQUENCY SPECTROSCOPY ; MOLECULAR-DYNAMICS SIMULATION ; VIBRATIONAL SPECTROSCOPY ; SULFURIC-ACID ; COMPUTER-SIMULATION ; ADSORPTION ; INTERFACE ; WATER ; CONFORMATION ; SYSTEMS
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000346552400004
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11892
Collection研究所(批量导入)
Affiliation1.Univ Utah, Coll Mines & Earth Sci, Dept Met Engn, Salt Lake City, UT 84112 USA
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xia,Du, Hao,Wang, Xuming,et al. Surface chemistry aspects of bastnaesite flotation with octyl hydroxamate[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2014,133(DEC.):29-38.
APA Zhang, Xia,Du, Hao,Wang, Xuming,&Miller, J. D..(2014).Surface chemistry aspects of bastnaesite flotation with octyl hydroxamate.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,133(DEC.),29-38.
MLA Zhang, Xia,et al."Surface chemistry aspects of bastnaesite flotation with octyl hydroxamate".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 133.DEC.(2014):29-38.
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