Article(id=1236319263972192841, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.03.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1669824000000, receivedDateStr=2022-12-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772691082231, onlineDateStr=2026-03-05, pubDate=1685548800000, pubDateStr=2023-06-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772691082231, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772691082231, creator=13701087609, updateTime=1772691082231, updator=13701087609, issue=Issue{id=1236316193171239730, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='3', pageStart='1', pageEnd='179', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772690350096, creator=13701087609, updateTime=1772691872061, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236322576809652696, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236322576809652697, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=75, endPage=78, ext={EN=ArticleExt(id=1236319265146598039, articleId=1236319263972192841, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Separation and Recovering of Aluminum, Silicon and Iron from Accumulative High-Iron Bauxite in Yunnan, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

An accumulative bauxite ore in Yunnan containing 42.13% Al₂O₃, 15.73% SiO₂ and 17.44% TFe, namely, with an Al/Si ratio of 2.68, was taken in a flotation for Al/Si separation, and the effects of pH regulator dosage, type and dosage of depressant, collector dosage and grinding fineness on desilication performance of flotation were all investigated. A closed-circuit flotation test performed with the optimized parameters produced an aluminum concentrate with Al₂O₃ grade and recovery of 52.16% and 70.30%, Al/Si ratio of 7.69, and TFe grade of 20.89%, respectively. Then, a flowsheet consisting of magnetic roasting and magnetic separation was introduced to treat this aluminum concentrate for Al/Fe separation, which produced a final aluminum concentrate containing 69.34% Al₂O₃ with Al/Si ratio of 8.70, and a rough iron concentrate grading 52.34% TFe with a process recovery of 76.03%.

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云南某堆积型高铁铝土矿Al₂O₃含量42.13%、SiO₂含量15.73%、TFe含量17.44%、铝硅比2.68。采用正浮选分离铝和硅，研究了pH值调整剂用量、抑制剂种类与用量、捕收剂用量及磨矿细度等对浮选脱硅效果的影响，适宜工艺条件下的浮选闭路试验获得了Al₂O₃品位52.16%、铝硅比7.69、Al₂O₃回收率70.30%、TFe含量20.89%的浮选铝精矿。采用磁化焙烧-磁选对浮选铝精矿开展铝铁分离探索试验研究，最终获得铝硅比8.70、Al₂O₃品位69.34%的铝精矿以及TFe品位52.34%、作业回收率76.03%的铁粗精矿。

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杨林（1985—），男（苗族），贵州安顺人，硕士，高级工程师，主要研究方向为浮选药剂开发及二次资源综合回收利用。

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杨林（1985—），男（苗族），贵州安顺人，硕士，高级工程师，主要研究方向为浮选药剂开发及二次资源综合回收利用。

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