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Effect of biological pretreatment on flotation recovery of pyrolusite
Alternative TitleTrans. Nonferrous Met. Soc. China
Yang, Zhi-chao1; Feng, Ya-li1; Li, Hao-ran2; Wang, Wei-da1; Teng, Qing1
2014-05-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume24Issue:5Pages:1571-1577
AbstractBacillus mucilaginosus was used in pretreatment of pyrolusite to facilitate the flotation removal of quartz from pyrolusite minerals. Quartz was activated by B. mucilaginosus, whereas pyrolusite was unaffected at pH 7 with laurylamine as collector. Flotation recovery of pyrolusite with B. mucilaginosus pretreatment is 73.62%, slightly lower than that of the process without biopretreament, namely 74.70%. The grade of concentrate of recovered pyrolusite is 19.44%, 2.18% higher than that of the recovered pyrolusite without B. mucilaginosus pretreatment (17.26%). The results of FTIR and SEM showed that no bacteria were adsorbed on the surface of quartz or pyrolusite, indicating that the better selectivity and collectability of flotation resulted from bacterial byproducts. And interaction of bacterial byproducts such as extracellular bacterial polysaccharide, extracellular bacterial protein and acetic acid, on minerals were studied by FTIR and adsorption.; Bacillus mucilaginosus was used in pretreatment of pyrolusite to facilitate the flotation removal of quartz from pyrolusite minerals. Quartz was activated by B. mucilaginosus, whereas pyrolusite was unaffected at pH 7 with laurylamine as collector. Flotation recovery of pyrolusite with B. mucilaginosus pretreatment is 73.62%, slightly lower than that of the process without biopretreament, namely 74.70%. The grade of concentrate of recovered pyrolusite is 19.44%, 2.18% higher than that of the recovered pyrolusite without B. mucilaginosus pretreatment (17.26%). The results of FTIR and SEM showed that no bacteria were adsorbed on the surface of quartz or pyrolusite, indicating that the better selectivity and collectability of flotation resulted from bacterial byproducts. And interaction of bacterial byproducts such as extracellular bacterial polysaccharide, extracellular bacterial protein and acetic acid, on minerals were studied by FTIR and adsorption.
KeywordFlotation Pyrolusite Quartz Laurylamine
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/S1003-6326(14)63227-1
URL查看原文
Indexed BySCI
Language英语
WOS KeywordMANGANESE-DIOXIDE ; ADSORPTION ; BEHAVIOR
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000339036700040
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11013
Collection研究所(批量导入)
Affiliation1.Univ Sci & Technol Beijing, Civil & Environm Engn Sch, Beijing 100083, Peoples R China
2.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Zhi-chao,Feng, Ya-li,Li, Hao-ran,et al. Effect of biological pretreatment on flotation recovery of pyrolusite[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2014,24(5):1571-1577.
APA Yang, Zhi-chao,Feng, Ya-li,Li, Hao-ran,Wang, Wei-da,&Teng, Qing.(2014).Effect of biological pretreatment on flotation recovery of pyrolusite.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,24(5),1571-1577.
MLA Yang, Zhi-chao,et al."Effect of biological pretreatment on flotation recovery of pyrolusite".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 24.5(2014):1571-1577.
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