Article(id=1322559938078032719, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743868800000, receivedDateStr=2025-04-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252461212, onlineDateStr=2026-10-29, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252461212, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252461212, creator=13701087609, updateTime=1793252461212, updator=13701087609, issue=Issue{id=1322559901990240737, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='3', pageStart='1', pageEnd='330', issueExtLink='null', onlineDate='null', pubDate='1774368000000', pubDateStr='2026-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252452609, creator='13701087609', updateTime=1793252731500, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322561071810991099, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322561071810991100, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=281, endPage=290, ext={EN=ArticleExt(id=1322559938224833360, articleId=1322559938078032719, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Mechanism of the Effect of Different Magnetization Times on the Reverse Flotation Behavior of Fine-Grained Hematite, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the effect of varying magnetization times on the reverse flotation of fine-grained hematite, water, reagents, and slurry were subjected to magnetization treatments of differing durations. By measuring the conductivity and surface tension of the solution, the viscosity of the solution and slurry, and the changes in infrared and Raman spectra of the mineral particle surfaces at different magnetization times, the mechanism by which magnetization time influences the reverse flotation of hematite was revealed. Results indicate that the magnetization effect is optimal at an 8-minute magnetization time. Magnetized water, starch and slurry can enhance hematite recovery rates by 2.3 percentage points, 4.16 percentage points and 3.84 percentage points respectively, whereas magnetized dodecyl amine reduces hematite recovery by 3.56 percentage points. Magnetization increases the solution's electrical conductivity, enhancing the solubility of reagents and the concentration of electrolytes within the solution. It also elevates viscosity, thereby strengthening the inhibitor's efficacy and preventing hematite particles from floating. Furthermore, it reduces the solution's surface tension, facilitating the adhesion of quartz to bubbles and improving the recovery rate in hematite reverse flotation. Infrared spectroscopy analysis indicates that magnetization influences the interaction between the reagent and the mineral surface, altering the amount of reagent adsorbed onto the mineral surface.

, authors=Fengjiu LI^{1, 2}, Hangyu WANG¹, Lingqi ZHU³, Qingmei JIA^{1, 2}, Liucheng ZHAO^{1, 2}, authorsList=Fengjiu LI, Hangyu WANG, Lingqi ZHU, Qingmei JIA, Liucheng ZHAO, authorCompany=null, correspAuthors=Hangyu WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322559938468102993, articleId=1322559938078032719, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=不同磁化时间对微细粒赤铁矿反浮选行为的影响机理, columnId=1226462297560892399, journalTitle=矿业研究与开发, columnName=选矿与资源综合利用, runingTitle=null, highlight=null, articleAbstract=

为探究不同磁化时间对微细粒赤铁矿反浮选的影响，分别对水、药剂、矿浆进行不同时间的磁化处理。通过检测不同磁化时间下溶液的电导率和表面张力、溶液与矿浆的黏度、以及矿粒表面的红外光谱和拉曼光谱的变化，揭示磁化时间对赤铁矿反浮选的作用机理。结果表明，在磁化时间为8 min时，磁化效果最优，经磁化处理的水、淀粉和矿浆可使赤铁矿回收率分别提升2.3个百分点、4.16个百分点、3.84个百分点，而磁化十二胺使赤铁矿回收率下降3.56个百分点。磁化处理使溶液电导率上升，增加药剂的溶解度和溶液内电解质的浓度；还会使黏度增大，强化抑制剂效果，阻止赤铁矿颗粒上浮；减小了溶液的表面张力，使石英更易与气泡黏附，提高赤铁矿反浮选的回收率。红外光谱分析结果显示，磁化作用对药剂与矿物表面的相互作用产生影响，改变药剂在矿物表面的吸附量。

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李凤久（1977—），男，河北唐山人，博士，教授，主要从事复杂难选矿物高效分选理论与工艺方面的研究。E-mail: tslifengjiu@126.com

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李凤久（1977—），男，河北唐山人，博士，教授，主要从事复杂难选矿物高效分选理论与工艺方面的研究。E-mail: tslifengjiu@126.com

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