Article(id=1305178380240973975, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305178373467169689, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2026.03.004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1766678400000, receivedDateStr=2025-12-26, revisedDate=1770307200000, revisedDateStr=2026-02-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1789108374891, onlineDateStr=2026-09-11, pubDate=1781884800000, pubDateStr=2026-06-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789108374891, onlineIssueDateStr=2026-09-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789108374891, creator=13701087609, updateTime=1789108374891, updator=13701087609, issue=Issue{id=1305178373467169689, tenantId=1146029695717560320, journalId=1146120122248306696, year='2026', volume='45', issue='3', pageStart='273', pageEnd='454', issueExtLink='null', onlineDate='null', pubDate='1781884800000', pubDateStr='2026-06-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789108373275, creator='13701087609', updateTime=1789108489171, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305178859612168540, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305178373467169689, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305178859612168541, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305178373467169689, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=299, endPage=307, ext={EN=ArticleExt(id=1305178381818032280, articleId=1305178380240973975, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Optimization and Economic Evaluation of Acid Leaching Process for Colluvium in MSESA Orebody, Congo (DRC), columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=

In order to expand the development boundary of overseas low-grade copper-cobalt oxide ore, the leaching of copper and cobalt with sulfuric acid was studied for the Colluvium of MSESA orebody in Congo (DRC). The effects of various key factors on the leaching were investigated, and the economy of the process was evaluated and analyzed. The results show that the contents of copper and cobalt in the colluvium are 1.1% and 0.15%, respectively. The oxidation rate of the ore is high and the argillization is serious. The main gangue phases are talc, biotite, quartz, chlorite and dolomite. Copper mainly exists in the form of oxide, and cobalt exists in the form of cobaltite, cobalt carbonate and cobalt in gangue. Under the conditions of grinding fineness of 70% (－200 mesh), sulfuric acid addition of 7%, leaching temperature of 25 ℃, leaching time of 2 h, liquid volume to solid mass ratio of 2.5∶1, and stirring rate of 300 r/min, the leaching rates of copper and cobalt are 88.72% and 71.75%, respectively, and the acid consumption is 5.43 t/tCu. Cathode copper is produced by leaching－extraction－electrowinning process. The production cost is $3 450.618/tCu, accounting for only 36.322% of the sales price of cathode copper, which has good economic benefits.

, authors=Changda ZHANG¹, Hui LI¹, Jun ZHANG², Bin ZHENG¹, Wei XU¹, Bin HAN², Liucan LI¹, authorsList=Changda ZHANG, Hui LI, Jun ZHANG, Bin ZHENG, Wei XU, Bin HAN, Liucan LI, authorCompany=null, correspAuthors=Hui LI, 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=1305178382048719001, articleId=1305178380240973975, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=刚果（金）MSESA矿体崩积物的酸浸工艺优化及经济性评价, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

为拓展海外低品位氧化铜钴矿开发边界，针对刚果（金）MSESA矿体坑内崩积物，研究了用硫酸浸出其中的铜、钴，考察了各关键因素对浸出的影响，并对工艺的经济性进行了评价分析。结果表明：该崩积物中铜、钴品位分别为1.1%和0.15%，矿石氧化率高，泥化严重，主要脉石物相为滑石、黑云母、石英、绿泥石、白云石；铜主要以氧化物存在，钴以钴华、碳酸钴和脉石中钴形态存在；在磨矿细度－200目占比70%、硫酸加入量7%、浸出温度25 ℃、浸出时间2 h、液固体积质量比2.5∶1、搅拌速率300 r/min条件下，铜、钴浸出率分别为88.72%和71.75%，酸耗为5.43 t/tCu；采用浸出—萃取—电积工艺生产阴极铜，生产成本为3 450.618美元/tCu，仅占阴极铜售价的36.322%，具有较高的经济效益。

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张长达（1995—），男，博士研究生，工程师，主要研究方向为有色金属冶金。

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张长达（1995—），男，博士研究生，工程师，主要研究方向为有色金属冶金。

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