Article(id=1236334631688139055, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.06.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1686326400000, receivedDateStr=2023-06-10, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772694746180, onlineDateStr=2026-03-05, pubDate=1701360000000, pubDateStr=2023-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772694746180, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772694746180, creator=13701087609, updateTime=1772694746180, updator=13701087609, issue=Issue{id=1236334630450819368, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='6', pageStart='1', pageEnd='183', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772694745886, creator=13701087609, updateTime=1772694896382, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236335261735506524, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236335261735506525, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=70, endPage=73, ext={EN=ArticleExt(id=1236334631935603000, articleId=1236334631688139055, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Beneficiation Experiment on Low-Grade Refractory Copper-Nickel Sulfide Ore from Abroad, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

According to the difficulties in beneficiation, such as intimate dissemination and complicated intergrowth of pentlandite, chalcopyrite and pyrrhotite, and high content of magnesium-bearing silicate minerals, a beneficiation experiment was conducted for a low-grade copper-nickel sulfide ore from abroad. A flowsheet consisting of rough grinding, fine-grinding of middlings, copper-nickel bulk flotation was introduced to treat this raw ore with Ni and Cu grades respectively as 0.50% and 0.20%. Adopting selective grinding approach and using high-efficient depressant CMC, excessive comminution of copper and nickel minerals can be avoided while magnesium-bearing silicate minerals can be selectively depressed. A closed-circuit test produced a copper-nickel concentrate grading 9.70% Ni and 4.75% Cu at corresponding recoveries of 68.99% and 79.85%, indicating copper and nickel resources were all effectively recovered.

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针对国外某低品位硫化铜镍矿中镍黄铁矿、黄铜矿与磁黄铁矿三者嵌布关系密切、共生关系复杂、含镁硅酸盐矿物含量高等选矿难点，开展了选矿试验研究。结果表明，对镍品位0.50%、铜品位0.20%的原矿，采用原矿粗磨-中矿细磨-铜镍混合浮选工艺，通过选择性磨矿和添加高效抑制剂CMC，避免了铜、镍矿物的过粉碎和实现了对含镁硅酸盐矿物的选择性抑制，闭路试验获得了镍品位9.70%、铜品位4.75%，镍、铜回收率分别为68.99%、79.85%的铜镍精矿，实现了铜、镍资源的有效回收。

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刘超（1988—），男，江西抚州人，硕士，高级工程师，主要从事选矿及固废利用研究。

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刘超（1988—），男，江西抚州人，硕士，高级工程师，主要从事选矿及固废利用研究。

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