Article(id=1321866364856423342, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321866297609146910, 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=1748534400000, receivedDateStr=2025-05-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793087100471, onlineDateStr=2026-10-27, pubDate=1779638400000, pubDateStr=2026-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793087100471, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793087100471, creator=13701087609, updateTime=1793087100471, updator=13701087609, issue=Issue{id=1321866297609146910, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='5', pageStart='1', pageEnd='312', issueExtLink='null', onlineDate='null', pubDate='1779638400000', pubDateStr='2026-05-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793087084438, creator='13701087609', updateTime=1793094562481, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321897662853533805, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321866297609146910, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321897662853533806, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321866297609146910, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=251, endPage=260, ext={EN=ArticleExt(id=1321866366697722801, articleId=1321866364856423342, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on the Inhibitory Effect of New Potassium Ion Starch on Fine-Grained Hematite, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Due to the characteristics of low grade and fine disseminated particle size, lean hematite is prone to overgrinding in grinding operations, resulting in a large number of fine-grained minerals. Due to the small particle size and large specific surface area, such fine-grained minerals are prone to coverage and surface adsorption competition effects during the flotation process, which significantly weakens the selective adsorption capacity of flotation reagents. Aiming at the problem of selective inhibition in the separation process of fine-grained hematite, a new K⁺ starch inhibitor was developed. Based on the flotation tests of pure minerals of quartz and hematite, combined with contact angle, Zeta potential, Fourier transform infrared spectroscopy and scanning electron microscopy (SEM)-EDS analysis, the inhibition mechanism of new K⁺ starch on fine-grained hematite was systematically revealed. The results showed that when the dosage of K⁺ starch was 150 mg·L^-1, the dosage of activator CaO was 100 mg·L^-1, and the dosage of collector sodium oleate was 200 mg·L^-1, the recovery rate of quartz was 83.5%, which was 4.00 percentage points higher than that of traditional corn starch, while the recovery rate of hematite decreased to 15.85%. In the flotation of mixed magnetic concentrate, the concentrate grade and recovery rate obtained under the action of new K⁺starch were 7.28 percentage points and 5.30 percentage points higher than those of corn starch, respectively. The mechanism analysis showed that K⁺ starch combined with O^2- to form K—O^- bond when K⁺ starch adsorbed onto hematite surface, which reduced the contact angle of hematite surface to 22.31° and formed a hydrophilic film, thus realizing the selective inhibition of hematite. The research results provided the design concept and theoretical basis of new environmentally friendly inhibitors for the efficient separation of fine-grained hematite.

, authors=Jinghui Sun¹, Yiwen Ma¹, Jie Liu², Yang Li¹, Fuxing Yao¹, Mengke Zheng¹, Xin Sun¹, Yanbing Zhang¹, authorsList=Jinghui Sun, Yiwen Ma, Jie Liu, Yang Li, Fuxing Yao, Mengke Zheng, Xin Sun, Yanbing Zhang, authorCompany=null, correspAuthors=Yiwen Ma, 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=1321866367830184883, articleId=1321866364856423342, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=新型钾离子型淀粉对微细粒赤铁矿抑制作用研究, 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=

贫赤铁矿因品位低及嵌布粒度细等特征，在磨矿作业中易发生过磨现象，产生大量微细粒矿物。此类微细粒矿物因粒径微小、比表面积大，在浮选过程中易发生罩盖及表面吸附竞争效应，显著削弱浮选药剂的选择性吸附能力。针对微细粒赤铁矿分选过程中存在的选择性抑制难题，研发了新型K⁺淀粉抑制剂。基于石英与赤铁矿纯矿物浮选试验，结合接触角、Zeta电位、傅里叶变换红外光谱（FTIR）及扫描电镜-EDS能谱检测与分析，系统揭示了新型K⁺淀粉对微细粒赤铁矿的抑制作用机理。试验结果表明：当K⁺淀粉用量为150 mg·L^-1、活化剂CaO用量为100 mg·L^-1、捕收剂油酸钠用量为200 mg·L^-1时，石英回收率为83.53%，相较于传统玉米淀粉，其回收率提升了4.00个百分点，而赤铁矿回收率降低至15.85%；浮选混磁精矿时，新型K⁺淀粉作用下得到的精矿品位及回收率较玉米淀粉作用下分别提高了7.28和5.30个百分点。机理分析表明，K⁺淀粉在赤铁矿表面吸附时，与O^2-结合形成K—O^-键，使赤铁矿表面接触角降至22.31°，并形成了亲水膜，从而实现对赤铁矿的选择性抑制作用。研究结果为微细粒赤铁矿的高效分选提供了新型环保抑制剂的设计理念和理论依据。

, authors=孙竞珲¹, 马艺闻¹, 刘杰², 李洋¹, 姚富兴¹, 郑梦可¹, 孙欣¹, 张艳兵¹, authorsList=孙竞珲, 马艺闻, 刘杰, 李洋, 姚富兴, 郑梦可, 孙欣, 张艳兵, authorCompany=null, correspAuthors=马艺闻, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=KXfAYZpr0EtxNCS00lEHXw==, magXml=iUUVh3sy/PUsuKU3u7b7fA==, pdfUrl=null, pdf=wdbFZND2K99LDHSv4h5Jug==, pdfFileSize=2958277, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=kTXMZ1TEeEJXcdxTYvYiqQ==, mapNumber=null, fund=null)}, authors=[Author(id=1321866369205916606, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321866364856423342, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1554638390@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321866369386271680, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321866364856423342, authorId=1321866369205916606, language=EN, stringName=Jinghui Sun, firstName=Jinghui, middleName=null, lastName=Sun, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.School of Mining Engineering, University of Science and Technology Liaoning, Anshan, Liaoning 114051, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321866371105936321, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321866364856423342, authorId=1321866369205916606, language=CN, stringName=孙竞珲, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．辽宁科技大学 矿业工程学院，辽宁 鞍山市　114051, bio={"content":"

孙竞珲（1999—），男，辽宁鞍山人，硕士研究生，主要从事微细粒矿物浮选药剂研究工作。E-mail: 1554638390@qq.com

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孙竞珲（1999—），男，辽宁鞍山人，硕士研究生，主要从事微细粒矿物浮选药剂研究工作。E-mail: 1554638390@qq.com

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