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Article(id=1322595167606002392, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322595047657296718, 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=1712592000000, receivedDateStr=2024-04-09, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260860587, onlineDateStr=2026-10-29, pubDate=1742832000000, pubDateStr=2025-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260860587, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260860587, creator=13701087609, updateTime=1793260860587, updator=13701087609, issue=Issue{id=1322595047657296718, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='3', pageStart='1', pageEnd='288', issueExtLink='null', onlineDate='null', pubDate='1742832000000', pubDateStr='2025-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793260831989, creator='13701087609', updateTime=1793260831989, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=237, endPage=244, ext={EN=ArticleExt(id=1322595167773774553, articleId=1322595167606002392, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Flotation Tailings Re-separation Test of Copper-Cobalt Ore with High Oxidation Rate in SICOMINES from the Democratic Republic of the Congo, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Copper-cobalt ore with high oxidation rate in SICOMINES from the Democratic Republic of the Congo contains some copper-bearing minerals which are difficult to be separated, resulting in poor separation indexes. In order to recover copper-bearing minerals in flotation tailings, the mineral composition of flotation tailings was analyzed. The flotation tailings were re-separated by gravity separation, magnetic separation, flotation and combination of various separation methods. Finally, it was determined that the flotation tailings were separated to one roughing and one scavenging strong magnetic separation, the magnetic separation concentrate was separated by one roughing and one scavenging flotation, and the flotation tailings of the magnetic separation concentrate were separated by a section of strong magnetic separation process. The recovery rates of total copper and total cobalt reach 84.74% and 56.88% respectively after adding the re-separation process on flotation tailings, which are 8.96 and 8.28 percentage points higher than those of the original flotation process. Meanwhile, conducting re-separation on the magnetic separation concentrate from magnetic separation of flotation tailings can greatly reduce the leaching acid consumption of magnetic separation concentrate.

, authors=Danxiao GAO, Haibao FAN, authorsList=Danxiao GAO, Haibao FAN, authorCompany=null, correspAuthors=Haibao FAN, 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=1322595171112440548, articleId=1322595167606002392, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=刚果(金)SICOMINES高氧化率铜钴矿浮选尾矿再选试验研究, 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=

刚果(金)SICOMINES高氧化率铜钴矿含有部分较难选的含铜矿物，导致选别指标较差。为回收浮选尾矿中的含铜矿物，对浮选尾矿进行了矿物成分分析，并对浮选尾矿进行了重选、磁选、浮选以及多种选别方式联合的再选试验研究。最终确定了对浮选尾矿采用一粗一扫强磁选，对磁选精矿进行一粗一扫浮选，对磁选精矿的浮选尾矿再进行一段强磁选的选别工艺。增加浮选尾矿再选工艺后，总铜和总钴回收率分别达到了84.74%和56.88%，比原浮选工艺分别提高了8.96和8.28个百分点。同时，对浮选尾矿再磁选的磁选精矿再选别，大大降低磁选精矿的浸出酸耗量。

, authors=高丹校, 范海宝, authorsList=高丹校, 范海宝, authorCompany=null, correspAuthors=范海宝, authorNote=

高丹校（1994—），男，广东揭阳人，硕士研究生，助理工程师，主要研究方向为铜钴矿选矿。E-mail:

, correspAuthorsNote=
范海宝（1986—），男，山东聊城人，硕士，高级工程师，主要研究方向为铜钴矿选矿。E-mail:
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高丹校（1994—），男，广东揭阳人，硕士研究生，助理工程师，主要研究方向为铜钴矿选矿。E-mail:

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高丹校（1994—），男，广东揭阳人，硕士研究生，助理工程师，主要研究方向为铜钴矿选矿。E-mail:

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Geology and Exploration, 2016, 52(2):392-398., articleTitle=Geological characteristics and metallogenic prospect of the Katanga copperbelt in Democratic Republic of the Congo, refAbstract=null)], funds=[Fund(id=1322595617252168216, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, awardId=2022YFC2904503; 2022YFC2904505, language=CN, fundingSource=国家重点研发计划项目(2022YFC2904503; 2022YFC2904505), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322595603620680163, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, xref=null, ext=[AuthorCompanyExt(id=1322595603629068772, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, companyId=1322595603620680163, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=La Sino-Congolaise Des Mines S.A., Beijing 100083, China), AuthorCompanyExt(id=1322595603637457381, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, companyId=1322595603620680163, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=华刚矿业股份有限公司，北京　100083)])], figs=[ArticleFig(id=1322595608481878520, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Fig.1, caption=Flow of flotation test, figureFileSmall=Nmx42pOpiNa2ILdGKI/gLw==, figureFileBig=orn8HbpulNR1Nvi7DNSyRg==, tableContent=null), ArticleFig(id=1322595608540598777, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=图1, caption=浮选试验流程, figureFileSmall=Nmx42pOpiNa2ILdGKI/gLw==, figureFileBig=orn8HbpulNR1Nvi7DNSyRg==, tableContent=null), ArticleFig(id=1322595608628679162, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Fig.2, caption=Test flow of increasing the number of flotation segments, figureFileSmall=xpFhSSpNKUcC11yAgpvRlw==, figureFileBig=fFS1XMQ5aRolK0MqQN+qhw==, tableContent=null), ArticleFig(id=1322595608687399419, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=图2, caption=增加浮选段数的试验流程, figureFileSmall=xpFhSSpNKUcC11yAgpvRlw==, figureFileBig=fFS1XMQ5aRolK0MqQN+qhw==, tableContent=null), ArticleFig(id=1322595608750313980, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Fig.3, caption=Test results of strong magnetic separation process, figureFileSmall=BWH7N9+0zsb4wRvgWlKUKQ==, figureFileBig=sgOaCJ86nngqKaGE4fZ0pg==, tableContent=null), ArticleFig(id=1322595608838394365, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=图3, caption=强磁选工艺试验结果, figureFileSmall=BWH7N9+0zsb4wRvgWlKUKQ==, figureFileBig=sgOaCJ86nngqKaGE4fZ0pg==, tableContent=null), ArticleFig(id=1322595608901308926, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Fig.4, caption=Flow of reflotation test of the strong magnetic separation concentrate, figureFileSmall=uXw8lew/zueyDIpP5ttA2w==, figureFileBig=A7or+FLk7a8YLZa2Z+aesw==, tableContent=null), ArticleFig(id=1322595608964223487, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=图4, caption=强磁选精矿再浮选试验流程, figureFileSmall=uXw8lew/zueyDIpP5ttA2w==, figureFileBig=A7or+FLk7a8YLZa2Z+aesw==, tableContent=null), ArticleFig(id=1322595609022943744, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Fig.5, caption=Results of reflotation test of the strong magnetic separation concentrate, figureFileSmall=hmChYE4u/wAMcu2Gv9kNRQ==, figureFileBig=OcpXOpGYTaj9GmqHk3wLmQ==, tableContent=null), ArticleFig(id=1322595609098441217, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=图5, caption=强磁选精矿再浮选试验结果, figureFileSmall=hmChYE4u/wAMcu2Gv9kNRQ==, figureFileBig=OcpXOpGYTaj9GmqHk3wLmQ==, tableContent=null), ArticleFig(id=1322595609161355778, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 1, caption=

Phase analysis results of copper and cobalt in raw ore

, figureFileSmall=null, figureFileBig=null, tableContent=
铜相/钴相含量/%分布率/%可能存在的矿物
自由氧化铜2.1485.60孔雀石、蓝磷铜矿、硅孔雀石等
结合氧化铜0.3112.40含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等
原生硫化铜0.010.40黄铜矿等
次生硫化铜0.041.60辉铜矿、铜蓝、斑铜矿
总铜2.50100.00
氧化钴0.1458.33水钴矿、菱钴矿等
硫化钴0.0625.00含铜钴硬锰矿、铜钴锰铁结合物等
硅酸盐中的钴0.0416.67硫铜钴矿等
总钴0.24100.00
), ArticleFig(id=1322595609253630467, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表1, caption=

原矿的铜、钴物相分析结果

, figureFileSmall=null, figureFileBig=null, tableContent=
铜相/钴相含量/%分布率/%可能存在的矿物
自由氧化铜2.1485.60孔雀石、蓝磷铜矿、硅孔雀石等
结合氧化铜0.3112.40含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等
原生硫化铜0.010.40黄铜矿等
次生硫化铜0.041.60辉铜矿、铜蓝、斑铜矿
总铜2.50100.00
氧化钴0.1458.33水钴矿、菱钴矿等
硫化钴0.0625.00含铜钴硬锰矿、铜钴锰铁结合物等
硅酸盐中的钴0.0416.67硫铜钴矿等
总钴0.24100.00
), ArticleFig(id=1322595609366876676, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 2, caption=

Phase analysis results of copper in the tailings

, figureFileSmall=null, figureFileBig=null, tableContent=
铜相含量/%分布率/%主要矿物
自由氧化铜0.5367.95硅孔雀石、孔雀石等
结合氧化铜0.1721.79含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等
硫化铜0.0810.26辉铜矿、铜蓝等
总铜0.78100.00
), ArticleFig(id=1322595609442374149, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表2, caption=

尾矿的铜物相分析结果

, figureFileSmall=null, figureFileBig=null, tableContent=
铜相含量/%分布率/%主要矿物
自由氧化铜0.5367.95硅孔雀石、孔雀石等
结合氧化铜0.1721.79含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等
硫化铜0.0810.26辉铜矿、铜蓝等
总铜0.78100.00
), ArticleFig(id=1322595609538843142, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 3, caption=

Results of collector screening tests

, figureFileSmall=null, figureFileBig=null, tableContent=
捕收剂种类产品名称产率/%Cu品位/%Cu回收率/%
戊基黄药粗选精矿2.203.028.77
扫选精矿1.922.045.17
浮选尾矿95.880.6886.06
给矿100.000.76100.00
RS粗选精矿29.591.1945.73
扫选精矿12.420.619.84
浮选尾矿57.990.5944.43
给矿100.000.77100.00
MJ粗选精矿35.610.8640.51
扫选精矿27.510.7125.83
浮选尾矿36.880.6933.66
给矿100.000.76100.00
), ArticleFig(id=1322595609601757703, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表3, caption=

捕收剂筛选试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
捕收剂种类产品名称产率/%Cu品位/%Cu回收率/%
戊基黄药粗选精矿2.203.028.77
扫选精矿1.922.045.17
浮选尾矿95.880.6886.06
给矿100.000.76100.00
RS粗选精矿29.591.1945.73
扫选精矿12.420.619.84
浮选尾矿57.990.5944.43
给矿100.000.77100.00
MJ粗选精矿35.610.8640.51
扫选精矿27.510.7125.83
浮选尾矿36.880.6933.66
给矿100.000.76100.00
), ArticleFig(id=1322595609681449480, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 4, caption=

Test results of increasing the number of flotation sections

, figureFileSmall=null, figureFileBig=null, tableContent=
产品名称产率/%Cu品位/%Cu回收率/%
粗选精矿2.203.028.98
扫选精矿11.922.045.29
扫选精矿21.411.222.32
扫选精矿30.821.051.16
尾矿93.650.6582.25
给矿100.000.75100.00
), ArticleFig(id=1322595609765335561, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表4, caption=

增加浮选段数的试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
产品名称产率/%Cu品位/%Cu回收率/%
粗选精矿2.203.028.98
扫选精矿11.922.045.29
扫选精矿21.411.222.32
扫选精矿30.821.051.16
尾矿93.650.6582.25
给矿100.000.75100.00
), ArticleFig(id=1322595609861804554, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 5, caption=

The results of gravity separation test of flotation tailings

, figureFileSmall=null, figureFileBig=null, tableContent=
作业方式样品名称产率/%Cu品位/%Cu回收率/%
摇床精矿10.591.3117.86
中矿32.610.5824.36
尾矿56.800.7957.78
给矿100.000.78100.00
螺旋溜槽精矿18.411.0525.12
中矿40.060.6332.79
尾矿41.530.7842.09
给矿100.000.77100.00
), ArticleFig(id=1322595609928913419, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表5, caption=

浮选尾矿重选试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
作业方式样品名称产率/%Cu品位/%Cu回收率/%
摇床精矿10.591.3117.86
中矿32.610.5824.36
尾矿56.800.7957.78
给矿100.000.78100.00
螺旋溜槽精矿18.411.0525.12
中矿40.060.6332.79
尾矿41.530.7842.09
给矿100.000.77100.00
), ArticleFig(id=1322595610012799500, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 6, caption=

Results of leaching test of the magnetic separation concentrate

, figureFileSmall=null, figureFileBig=null, tableContent=
磁选精矿浸出渣浸出液渣计浸出率渣率/%吨铜净酸耗/t
Cu/%Co/%Cu/%Co/%Cu/(g/L)Co/(g/L)Cu/%Co/%
1.80.170.500.071.200.1375.2263.2789.2011.41
), ArticleFig(id=1322595610121851405, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表6, caption=

磁选精矿浸出试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
磁选精矿浸出渣浸出液渣计浸出率渣率/%吨铜净酸耗/t
Cu/%Co/%Cu/%Co/%Cu/(g/L)Co/(g/L)Cu/%Co/%
1.80.170.500.071.200.1375.2263.2789.2011.41
), ArticleFig(id=1322595610184765966, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 7, caption=

Test results of spiral chute re-separation of strong magnetic concentrate

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
重选精矿4.503.3218.92
尾矿95.500.6781.08
给矿100.000.79100.00
), ArticleFig(id=1322595613850587663, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表7, caption=

强磁精矿螺旋溜槽再选试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
重选精矿4.503.3218.92
尾矿95.500.6781.08
给矿100.000.79100.00
), ArticleFig(id=1322595613942862352, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 8, caption=

Results of reflotation-shaker test of the strong magnetic concentrate

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
粗选精矿4.254.2923.15
扫选精矿2.802.8510.15
摇床精矿1.201.722.61
尾矿91.750.5564.09
给矿100.000.79100.00
), ArticleFig(id=1322595614240657937, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表8, caption=

强磁精矿再浮选-摇床试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
粗选精矿4.254.2923.15
扫选精矿2.802.8510.15
摇床精矿1.201.722.61
尾矿91.750.5564.09
给矿100.000.79100.00
), ArticleFig(id=1322595614592979474, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 9, caption=

Results of reflotation-magnetic separation test of the strong magnetic concentrate

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
粗选精矿4.264.3523.61
扫选精矿2.732.819.76
磁选精矿1.322.143.60
尾矿91.690.5463.03
给矿100.000.79100.00
), ArticleFig(id=1322595614668476947, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表9, caption=

强磁精矿再浮选-磁选试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
样品名称产率/%Cu品位/%Cu回收率/%
粗选精矿4.264.3523.61
扫选精矿2.732.819.76
磁选精矿1.322.143.60
尾矿91.690.5463.03
给矿100.000.79100.00
), ArticleFig(id=1322595614756557332, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 10, caption=

Production specifications

, figureFileSmall=null, figureFileBig=null, tableContent=
产品名称产率/%铜品位/%铜回收率/%钴品位/%钴回收率/%
对原矿对作业对原矿对作业
硫化铜精矿0.1060.102.51—0.120.06—
氧化铜精矿13.9810.7560.05—0.5433.29—
浮选钴精矿8.234.0213.22—0.4215.25—
再选精矿6.463.478.9536.970.298.2816.11
尾矿71.230.5415.2763.030.1443.1283.89
给矿100.002.50100.00—0.23100.00—
), ArticleFig(id=1322595615037575701, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表10, caption=

生产技术指标

, figureFileSmall=null, figureFileBig=null, tableContent=
产品名称产率/%铜品位/%铜回收率/%钴品位/%钴回收率/%
对原矿对作业对原矿对作业
硫化铜精矿0.1060.102.51—0.120.06—
氧化铜精矿13.9810.7560.05—0.5433.29—
浮选钴精矿8.234.0213.22—0.4215.25—
再选精矿6.463.478.9536.970.298.2816.11
尾矿71.230.5415.2763.030.1443.1283.89
给矿100.002.50100.00—0.23100.00—
), ArticleFig(id=1322595615138238998, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=EN, label=Table 11, caption=

Leaching test results of the concentrate

, figureFileSmall=null, figureFileBig=null, tableContent=
再选精矿浸出渣浸出液渣计浸出率渣率/%吨铜净酸耗/t
Cu/%Co/%Cu/%Co/%Cu/(g/L)Co/(g/L)Cu/%Co/%
3.490.2870.650.1011.200.1384.1670.0785.042.43
), ArticleFig(id=1322595617080201751, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595167606002392, language=CN, label=表11, caption=

精矿浸出试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
再选精矿浸出渣浸出液渣计浸出率渣率/%吨铜净酸耗/t
Cu/%Co/%Cu/%Co/%Cu/(g/L)Co/(g/L)Cu/%Co/%
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刚果(金)SICOMINES高氧化率铜钴矿浮选尾矿再选试验研究
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高丹校 , 范海宝
矿业研究与开发 | 选矿与资源综合利用 2025,45(3): 237-244
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矿业研究与开发 |选矿与资源综合利用 2025 , 45 (3) : 237 -244
刚果(金)SICOMINES高氧化率铜钴矿浮选尾矿再选试验研究
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高丹校 , 范海宝
作者信息
  • 华刚矿业股份有限公司，北京　100083
通讯作者:
范海宝（1986—），男，山东聊城人，硕士，高级工程师，主要研究方向为铜钴矿选矿。E-mail:
作者简介:

高丹校（1994—），男，广东揭阳人，硕士研究生，助理工程师，主要研究方向为铜钴矿选矿。E-mail:

Study on Flotation Tailings Re-separation Test of Copper-Cobalt Ore with High Oxidation Rate in SICOMINES from the Democratic Republic of the Congo
Danxiao GAO , Haibao FAN
Affiliations
  • La Sino-Congolaise Des Mines S.A., Beijing 100083, China
出版时间: 2025-03-25
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摘要
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刚果(金)SICOMINES高氧化率铜钴矿含有部分较难选的含铜矿物，导致选别指标较差。为回收浮选尾矿中的含铜矿物，对浮选尾矿进行了矿物成分分析，并对浮选尾矿进行了重选、磁选、浮选以及多种选别方式联合的再选试验研究。最终确定了对浮选尾矿采用一粗一扫强磁选，对磁选精矿进行一粗一扫浮选，对磁选精矿的浮选尾矿再进行一段强磁选的选别工艺。增加浮选尾矿再选工艺后，总铜和总钴回收率分别达到了84.74%和56.88%，比原浮选工艺分别提高了8.96和8.28个百分点。同时，对浮选尾矿再磁选的磁选精矿再选别，大大降低磁选精矿的浸出酸耗量。

高氧化率铜钴矿  /  强磁选  /  强磁精矿再选  /  浸出酸耗

Copper-cobalt ore with high oxidation rate in SICOMINES from the Democratic Republic of the Congo contains some copper-bearing minerals which are difficult to be separated, resulting in poor separation indexes. In order to recover copper-bearing minerals in flotation tailings, the mineral composition of flotation tailings was analyzed. The flotation tailings were re-separated by gravity separation, magnetic separation, flotation and combination of various separation methods. Finally, it was determined that the flotation tailings were separated to one roughing and one scavenging strong magnetic separation, the magnetic separation concentrate was separated by one roughing and one scavenging flotation, and the flotation tailings of the magnetic separation concentrate were separated by a section of strong magnetic separation process. The recovery rates of total copper and total cobalt reach 84.74% and 56.88% respectively after adding the re-separation process on flotation tailings, which are 8.96 and 8.28 percentage points higher than those of the original flotation process. Meanwhile, conducting re-separation on the magnetic separation concentrate from magnetic separation of flotation tailings can greatly reduce the leaching acid consumption of magnetic separation concentrate.

Copper-cobalt ore with high oxidation rate  /  Strong magnetic separation  /  Re-separation of strong magnetic concentrate  /  Leaching acid consumption
高丹校, 范海宝. 刚果(金)SICOMINES高氧化率铜钴矿浮选尾矿再选试验研究. 矿业研究与开发, 2025 , 45 (3) : 237 -244 .
Danxiao GAO, Haibao FAN. Study on Flotation Tailings Re-separation Test of Copper-Cobalt Ore with High Oxidation Rate in SICOMINES from the Democratic Republic of the Congo[J]. Mining Research and Development, 2025 , 45 (3) : 237 -244 .
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0　引言
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铜、钴金属具有优异的理化性质，被广泛地应用于各工业领域，其需求量日益增长，而易开采易选别的铜、钴资源日益减少，难选的铜、钴资源的开发利用成为亟需解决的问题[1-2]。中国铜金属消耗量居世界第一，占全球铜消费量近一半，而我国铜资源储量仅居全球第九位，已探明的铜资源储量静态保障年限不足20 a，远低于全球平均值[3]；同时，中国也是全球最大的精炼钴生产国和全球最大的钴消费国，而我国探明的钴资源储量仅占全球的1%左右，钴资源严重匮乏[4-6]。因此，我国通过“走出去”战略，获得海外铜、钴资源，有效地弥补了国内铜、钴资源的短缺。其中，中国企业在非洲-赞比亚铜钴矿带上就有许多开采经营[7-9]，对保障我国铜、钴资源的稳定供应起着重要作用。非洲-赞比亚铜钴矿带属于沉积层状铜矿床，不仅含有大量容易选别的硫化铜矿石，也存在大量难选的高氧化率铜钴矿石[10-12]。目前，除了部分较难选的高氧化率铜钴矿只能通过化学选矿法处理外，其余的主要处理方法为浮选法[13-16]。高氧化率铜钴矿石具有含泥量大，矿物组成复杂，结合率高，有用矿物可浮性差，浮选药剂耗量大的特点，导致其选别指标较差[17-18]。由于高氧化率铜钴矿的矿物组成复杂，其中可浮性较好的矿物可通过浮选回收，而可浮性较差的含铜矿物，例如铜钴硬锰矿、铜钴锰铁结合物、（含铜）赤铁矿、（含铜)褐铁矿等矿物，其浮选效果较差，可联合其他选别方法回收。因此，加强高氧化率铜钴矿的选别研究，提高高氧化率铜钴矿的选别效果，对促进高氧化率铜矿资源的开发利用，降低其选别成本有着重要的意义。
1　原矿矿石性质
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SICOMINES铜钴矿位于非洲-赞比亚铜钴矿带，属于层状特大型铜钴矿床[19-21]。矿区的矿石性质复杂，矿石氧化率波动较大，含有大量难选的高氧化率铜钴矿石。该矿石的铜品位为2.50%，钴品位为0.24%，铁品位为4.05%，锰品位为0.29%，硫品位为0.10%，矿石中主要有价元素为铜和钴。原矿的铜、钴物相分析结果见表1。由表1可见，原矿中的铜主要以自由氧化铜和结合氧化铜为主，分别占总铜的85.60%和12.40%，含少量的次生硫化铜和原生硫化铜。自由氧化铜主要以孔雀石、蓝磷铜矿和硅孔雀石等为主，结合氧化铜主要有铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等，次生硫化铜矿物由辉铜矿、铜蓝和斑铜矿组成，原生硫化铜主要以黄铜矿为主。原矿中的钴主要以氧化钴、硫化钴和硅酸盐中的钴组成，分别占总钴含量的58.33%、25.00%和16.67%。其中，氧化钴主要以水钴矿和菱钴矿为主，硫化钴主要以含铜钴硬锰矿、铜钴锰铁结合物形式赋存，硅酸盐中的钴主要为硫铜钴矿等。原矿中的非金属矿物主要为石英、白云母、黏土、钾长石等；铁矿物主要以褐铁矿、菱铁矿和赤铁矿为主；锰矿物主要为铜钴硬锰矿和铜钴锰铁结合物。
2　现场选别工艺与主要技术指标
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根据该高氧化率铜钴矿石的性质和特点，目前现场采用半自磨-球磨碎磨工艺对该矿石进行破碎和磨矿处理，对磨矿好的矿浆采用先硫后氧的浮选法对矿石中不同可浮性的铜矿物进行梯级浮选，即对磨好的矿浆依次进行硫化铜浮选、氧化铜浮选和钴浮选，分别得到硫化铜精矿、氧化铜精矿和钴精矿。现场矿浆磨矿细度约为72%，使用戊基黄药为捕收剂，硫氢化钠为硫化剂，松醇油（2#油）为起泡剂；另外，主流程浮选设备均使用WEMCO160RT溢流型浮选机，硫化铜精选使用WEMCO50RT溢流型浮选机。高氧化率铜钴矿的选别总铜、总钴回收率分别为75.78%和48.60%，浮选尾矿的铜、钴含量较高，浮选尾矿铜、钴品位分别为0.78%和0.15%。因此，需要对高氧化率铜钴矿的浮选尾矿进行再回收利用的研究，降低尾矿中的铜、钴品位，以提高资源的开发利用水平和选矿经济效益。
3　尾矿性质和试验设备
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3.1　尾矿性质
取现场生产的高氧化率铜钴矿的浮选尾矿，在实验室进行浮选尾矿再选试验。浮选尾矿样品的铜品位为0.78%，钴品位为0.14%，铁品位为3.29%，锰品位为0.17%，尾矿铜的物相分析结果见表2。由表2可知，该浮选尾矿的结合氧化铜的含量较原矿有所升高，达到21.79%。浮选尾矿中主要有用矿物为较难浮选的硅孔雀石、孔雀石，以及可浮性较差的含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等。接下来采用浮选、磁选和重选方法对该浮选尾矿进行再选试验研究，主要考察浮选尾矿铜金属回收。
3.2　试验设备
浮选试验采用XFD-1.5型单槽浮选机、XFD-0.5型单槽浮选机及XMQ-Φ240×90A(6.25L)型磨矿机，磁选使用Slon750型高梯度磁选机，重选使用LYN-1100×500型摇床和Φ800 mm的螺旋溜槽。
4　试验与结果分析
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4.1　再浮选试验
基于该高氧化率铜钴矿中有用矿物与脉石矿物间的可浮性差异，首先采用浮选工艺回收浮选尾矿中的有用矿物。参考选矿厂初步设计相关试验结果，优选捕收剂，对该浮选尾矿进行再选试验。
4.1.1　捕收剂筛选试验
根据该矿石的性质，对戊基黄药以及阴离子捕收剂RS和阴离子捕收剂MJ进行捕收剂种类遴选试验，试验流程如图1所示，试验结果见表3。由表3可见，与戊基黄药相比，使用RS和MJ的精矿品位较低，精矿产率较大，同时不利于精矿后续处理，而使用戊基黄药可获得相对较好的浮选效果。因此后续试验使用戊基黄药进行试验。
4.1.2　捕收剂戊基黄药浮选试验
使用捕收剂戊基黄药进行增加浮选段数的浮选试验，试验流程见图2，试验结果见表4。由表4可知，采用戊基黄药作为捕收剂，浮选尾矿再经过一粗一扫可以将尾矿的Cu含量降低到0.68%，再通过增加浮选段数，尾矿的Cu品位降低不明显，据此认为，高氧化率铜钴矿浮选尾矿再浮选一粗一扫即可。浮选尾矿再经一粗一扫浮选，可获得产率4.12%，铜品位为2.56%，铜回收率为14.27%的指标。
4.2　重选试验
对高氧化率铜钴矿浮选尾矿分别进行摇床和螺旋溜槽试验，试验结果见表5。由表5可知，该浮选尾矿再经摇床选别，可获得精矿产率为10.59%，铜品位为1.31%，铜回收率为17.86%的精矿；浮选尾矿再经螺旋溜槽选别，可获得精矿产率为18.41%，铜品位为1.05%，铜回收率为25.12%的精矿。由此可见，对高氧化率铜钴矿浮选尾矿再进行重选的效果较差。
4.3　磁选试验
使用SLon-750型磁选机对高氧化率铜钴矿的浮选尾矿进行一粗一扫的强磁选，试验结果见图3。由图3可知，在背景场强为1.0 T的条件下，对浮选尾矿进行一粗一扫试验，可获得精矿产率为21.20%，铜品位为1.80%，总铜回收率48.69%的指标。对比前述高氧化率铜钴矿浮选尾矿再浮选和再重选试验结果可知，对该浮选尾矿采用强磁选别可获得较好的选别效果。另外，由于磁选精矿产率较大，品位较低，接下来对该强磁精矿进行浸出试验，了解其浸出酸耗。浸出试验的条件为：浸出温度为室温，浸出液固比为9:1，浸出时间为4 h，搅拌速度约200 r/min，浸出终点pH约为1.30，试验用质量分数为98%的硫酸调节矿浆酸度。试验结果见表6。由表6可知，该磁选精矿的铜渣计浸出率为75.22%，吨铜净酸耗量为11.41 t，吨铜酸耗较高。因此，需要对该磁选精矿再进行选别，以降低精矿产率，提高精矿品位，降低精矿浸出酸耗。
4.4　磁选精矿再重选(螺旋溜槽)试验
对浮选尾矿进行强磁一粗一扫作业后的磁选精矿进行再重选（螺旋溜槽）试验，试验结果见表7。由表7可知，强磁选精矿再经螺旋溜槽再选，最终可获得铜品位3.32%，铜回收率18.92%的重选精矿。
4.5　强磁精矿再浮选试验
对磁选精矿进行了再浮选试验。在硫氢化钠粗选用量为1 500 g/t、扫选用量为1 000 g/t，戊基黄药粗选用量为600 g/t、扫选用量为400 g/t，松醇油粗选用量为15 g/t、扫选用量为8 g/t的条件下，对浮选尾矿进行强磁一粗一扫作业后的精矿再进行一粗一扫的浮选，可获得较好的浮选指标。试验流程见图4，试验结果见图5。由图5可知，对磁选精矿进行再浮选，可获得精矿产率为6.98%，铜品位为3.76%，铜回收率33.13%的浮选精矿。
4.6　强磁综合精矿再浮选-重选(摇床)联合工艺试验
试验发现，对强磁一粗一扫作业得到的磁选精矿进行一粗一扫再浮选所得浮选尾矿的铜品位相对较高。因此，对浮选尾矿再进行一段摇床处理，试验结果见表8。由表8可知，对浮选尾矿再进行一段摇床处理，可获得精矿产率为8.25%，铜品位为3.43%，铜回收率35.91%的指标。
4.7　强磁综合精矿再浮选-磁选联合工艺试验
由于强磁精矿再浮选尾矿的铜品位仍然较高，对磁选精矿的浮选尾矿再进行强磁选回收，场强为1.0 T，试验结果见表9。由表9可知，对磁选精矿的再浮选尾矿进行一段强磁选处理，可获得精矿产率为8.31%，铜品位为3.49%，铜回收率36.97%的指标。
由此可见，该高氧化率铜钴矿浮选尾矿进行一粗一扫强磁选，磁选精矿再一粗一扫浮选，浮选尾矿再进行一段强磁选，可获得较好的选别指标。将该试验结果与前述试验结果综合计算得出的生产技术指标见表10。由表10可见，增加一粗一扫强磁选，磁选精矿再一粗一扫浮选，浮选尾矿再进行一段强磁选，可获得产率为6.46%，铜、钴品位分别为3.47%和0.29%，铜、钴回收率分别为8.95%和8.28%的再选精矿。另外，总铜和总钴回收率分别为84.74%和56.88%，较原工艺提高了8.96和8.28个百分点。
4.8　产品考察
由上述试验结果可知，对浮选尾矿再进行重选和浮选，选别效果均较差；而对浮选尾矿再进行一粗一扫强磁选，对磁选精矿再进行一粗一扫浮选，对浮选尾矿再进行强磁选，可获得较好的选矿指标。取浮选尾矿强磁选-浮选-强磁选的精矿进行浸出试验，试验条件为：浸出温度为室温，浸出液固比为9:1，浸出时间为4 h，搅拌速度约200 r/min，浸出终点pH约为1.28，试验用质量分数为98%的硫酸调节矿浆酸度，浸出试验结果见表11。由表11可知，再选精矿浸出的吨铜酸耗量为2.43 t，而由表7可知，磁选精矿浸出的吨铜酸耗量为11.41 t。由此可见，对磁选精矿进行一粗一扫浮选，对浮选尾矿再进行磁选，可大大降低磁选精矿的浸出酸耗。
5　结论
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（1）刚果(金)SICOMINES的高氧化率铜钴矿的铜品位为2.50%，钴品位为0.24%，以自由氧化铜和结合氧化铜为主，含少量的次生硫化铜和原生硫化铜。原工艺的浮选尾矿中损失的有用矿物主要为较难浮选的硅孔雀石、孔雀石，以及可浮性较差的含铜钴硬锰矿、铜钴锰铁结合物、含铜褐铁矿等。
（2）对该高氧化率铜钴矿的浮选尾矿采用重选（摇床和溜槽)和再浮选，选别效果较差，而采用一粗一扫强磁选，对磁选精矿再进行一粗一扫浮选，对浮选尾矿再进行一段强磁选，可获得较好的选别指标，最终总铜和总钴回收率分别为84.74%和56.88%，较原工艺提高了8.96和8.28个百分点。
（3）对该高氧化率铜钴矿的浮选尾矿进行一粗一扫强磁选，对磁选精矿直接浸出的酸耗量较高，而对磁选精矿再进行一粗一扫浮选，对浮选尾矿再进行一段强磁选得到的再选精矿，对再选精矿进行浸出的酸耗量大大降低，吨铜净酸耗为2.43 t。
基金
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  • 国家重点研发计划项目(2022YFC2904503; 2022YFC2904505)
文献
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2025年第45卷第3期
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  • 接收时间：2024-04-09
  • 首发时间：2026-10-29
  • 出版时间：2025-03-25
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  • 收稿日期：2024-04-09
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国家重点研发计划项目(2022YFC2904503; 2022YFC2904505)
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    华刚矿业股份有限公司，北京　100083

通讯作者:

范海宝（1986—），男，山东聊城人，硕士，高级工程师，主要研究方向为铜钴矿选矿。E-mail:
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2种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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