Article(id=1236333414480146497, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236333405122646435, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.01.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663084800000, receivedDateStr=2022-09-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772694455975, onlineDateStr=2026-03-05, pubDate=1675180800000, pubDateStr=2023-02-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772694455975, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772694455975, creator=13701087609, updateTime=1772694455975, updator=13701087609, issue=Issue{id=1236333405122646435, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='1', pageStart='1', pageEnd='159', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772694453745, creator=13701087609, updateTime=1772694772892, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236334743785099547, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236333405122646435, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236334743785099548, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236333405122646435, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=50, endPage=54, ext={EN=ArticleExt(id=1236333414798913619, articleId=1236333414480146497, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Influence of Particle Liberation Characteristics of Calcium-Magnesium Phosphate Ore on Its Flotation Behavior, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

A medium-low grade calcium-magnesium phosphate ore was ground to a fineness of 56.74% -0.075 mm and was used to study the liberation characteristics of particle size within varied ranges on its flotation behavior. The particles were classified into coarse ranges (+0.15 mm, -0.15+0.106 mm and -0.106+0.075 mm) and fine ranges (-0.075+0.038 mm and -0.038 mm). The content of different minerals in each size range was estimated by using X-ray fluorescence spectroscopy and X-ray powder diffraction analysis, while the intergrowth and monomer liberation was evaluated with the backscattering images obtained from scanning electron microscopy. It is found that the content of liberated minerals increases as the particle size decreases. Fluorapatite is primarily enriched in the coarser particles within the size range of +0.075 mm, whereas dolomite is concentrated mainly in fine particles of -0.075 mm. By improving the selective aggregation of valuable minerals and gangues in size range of -0.038 mm, the P₂O₅ loss can be reduced. Furthermore, by reducing the content of coarse particles within the size of +0.075 mm and increasing the content of particles within -0.075+0.038 mm range, both P₂O₅ grade and recovery of the concentrates can be effectively improved.

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以中低品位钙镁质磷矿石为原料，研究了磨矿细度-0.075 mm粒级占56.74%磨矿产品中的粗粒级（+0.15 mm、-0.15+0.106 mm和-0.106+0.075 mm）和细粒级（-0.075+0.038 mm和-0.038 mm）颗粒解离特性对浮选行为的影响。使用X射线荧光光谱分析和X射线粉末衍射分析各粒级不同矿物组分含量，结合扫描电镜背散射扫描分析各粒级连生体及单体解离情况，发现单体矿物含量随粒径减小而增多，氟磷灰石主要富集在+0.075 mm粗粒级中，白云石主要集中在-0.075 mm细粒级中。增强-0.038 mm粒级中有用矿物和脉石矿物选择性聚集，可减少P₂O₅损失；减少+0.075 mm粗粒级含量、同时增加-0.075+0.038 mm粒级含量，可以有效提高精矿中P₂O5品位和回收率。

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杨俊（1996—），男，四川资阳人，硕士研究生，主要研究方向为难选矿石的选矿及资源综合利用。

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杨俊（1996—），男，四川资阳人，硕士研究生，主要研究方向为难选矿石的选矿及资源综合利用。

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