Article(id=1241064284113916524, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241064275599479114, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2025.05.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1741881600000, receivedDateStr=2025-03-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773822383192, onlineDateStr=2026-03-18, pubDate=1759248000000, pubDateStr=2025-10-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773822383192, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773822383192, creator=13701087609, updateTime=1773822383192, updator=13701087609, issue=Issue{id=1241064275599479114, tenantId=1146029695717560320, journalId=1235980550691926019, year='2025', volume='45', issue='5', pageStart='1', pageEnd='201', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773822381162, creator=13701087609, updateTime=1773822785847, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241065973038501946, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241064275599479114, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241065973038501947, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241064275599479114, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=77, endPage=81, ext={EN=ArticleExt(id=1241064284629815937, articleId=1241064284113916524, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Improvement of Metal Recovery from Lead-Zinc Ore in Qinghai by New Flotation Reagents, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

The flotation reagent system was optimized for a lead-zinc ore in Qinghai based on experimental studies. It is shown that a new chelating agent (PT-8) combined with the conventional 25# xanthate can effectively enhance the flotation recovery of copper-lead sulfide minerals. A new collector (SXF-10) at a low dosage can efficiently recover marmatite from the ore, significantly improving the recoveries of Cu, Pb and Zn from flotation process. With raw ore at a grinding fineness of -0.074 mm 70%, 25# xanthate and PT-8 are used for Pb flotation, and SXF-10 is used for Zn flotation. A closed-circuit test with such process flow can produce a Cu-Pb concentrate grading 3.52% Cu and 62.53% Pb at corresponding recoveries of 70.08% and 93.75%, respectively, and a Zn concentrate grading 48.19% Zn at 87.97% recovery.

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对青海某铅锌矿进行了浮选药剂制度优化研究。结果表明,采用新型螯合剂PT-8配合常规25#黑药可有效强化铜铅硫化矿物的浮选回收,新型捕收剂SXF-10可以在低用量条件下高效回收矿石中的铁闪锌矿,明显提高铜、铅和锌金属的浮选回收率;在磨矿细度-0.074 mm粒级占70%条件下,铅浮选采用25#黑药+PT-8,锌浮选采用SXF-10,闭路试验可获得Cu品位3.52%、Cu回收率70.08%、Pb品位62.53%、Pb回收率93.75%的含铜铅精矿以及Zn品位48.19%、Zn回收率87.97%的锌精矿。

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邹松(1990—),男,江西赣州人,博士,内聘副教授,硕士研究生导师,主要从事低碳浮选理论与工艺、绿色选矿新药剂研发等工作。E-mail:
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林悦(2004—),女,广东揭西人,主要研究方向为矿物加工。E-mail:

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林悦(2004—),女,广东揭西人,主要研究方向为矿物加工。E-mail:

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Mining and Metallurgical Engineering, 2023, 43(3): 67-71., articleTitle=Experimental study on flotation of Ag-rich Pb-Zn sulfide ore from Inner Mongolia, refAbstract=null)], funds=[Fund(id=1241064303290274237, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, awardId=20242BAB20188, language=CN, fundingSource=江西省自然科学基金(20242BAB20188), fundOrder=null, country=null), Fund(id=1241064303781007811, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, awardId=52404280, language=CN, fundingSource=国家自然科学基金(52404280), fundOrder=null, country=null), Fund(id=1241064304087192008, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, awardId=205200100692, language=CN, fundingSource=江西理工大学博士科研启动项目(205200100692), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241064286643082052, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, 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journalId=1235980550691926019, articleId=1241064284113916524, companyId=1241064286781494099, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China), AuthorCompanyExt(id=1241064286794077013, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, companyId=1241064286781494099, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.江西理工大学 资源与环境工程学院,江西 赣州 341000)])], figs=[ArticleFig(id=1241064295342067996, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Fig.1, caption=Basic flotation flowchart in test, figureFileSmall=2LunkDwgI/AihHSAx87+og==, figureFileBig=k9mwHxrnpBIO29Sfm5SxGA==, tableContent=null), ArticleFig(id=1241064295514034470, 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journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Table 1, caption=

Multi-elemental analysis of ore

, figureFileSmall=null, figureFileBig=null, tableContent=
CuPbZnSFeAg1)
0.101.352.9613.2332.7515.11
), ArticleFig(id=1241064298710094189, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表1, caption=

矿石化学多元素分析结果(质量分数)

, figureFileSmall=null, figureFileBig=null, tableContent=
CuPbZnSFeAg1)
0.101.352.9613.2332.7515.11
), ArticleFig(id=1241064299007889782, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Table 2, caption=

Main mineral contents in ore

, figureFileSmall=null, figureFileBig=null, tableContent=
石英黄铁矿磁黄铁矿方铅矿铁闪锌矿辉石方解石
12.967.1130.972.935.1219.532.12
绿泥石高岭石云母闪石菱铁矿烧石膏
6.534.661.891.583.471.13
), ArticleFig(id=1241064299284713852, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表2, caption=

矿石主要矿物含量分析结果(质量分数)

, figureFileSmall=null, figureFileBig=null, tableContent=
石英黄铁矿磁黄铁矿方铅矿铁闪锌矿辉石方解石
12.967.1130.972.935.1219.532.12
绿泥石高岭石云母闪石菱铁矿烧石膏
6.534.661.891.583.471.13
), ArticleFig(id=1241064299486040452, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Table 3, caption=

Lead collector type test results

, figureFileSmall=null, figureFileBig=null, tableContent=
铅捕收剂种类及用量/(g·t-1)产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
25#黑药 40铅粗精矿3.521.4333.204.9750.5491.676.12
尾矿96.480.0510.112.7849.468.3393.88
原矿100.000.0991.272.86100.00100.00100.00
乙硫氮 40铅粗精矿2.971.8522.042.8852.5756.913.00
尾矿97.030.0510.512.8547.4343.0997.00
原矿100.000.1041.152.85100.00100.00100.00
乙硫氮+乙黄药 20+20铅粗精矿4.411.3620.051.8260.5067.782.99
尾矿95.590.0410.442.7339.5032.2297.01
原矿100.000.101.312.69100.00100.00100.00
25#黑药+PT-8 40+10铅粗精矿7.301.0218.684.1871.5296.2110.17
尾矿92.700.0320.0582.9128.483.7989.83
原矿100.000.1041.423.00100.00100.00100.00
), ArticleFig(id=1241064299670589835, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表3, caption=

铅捕收剂种类试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
铅捕收剂种类及用量/(g·t-1)产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
25#黑药 40铅粗精矿3.521.4333.204.9750.5491.676.12
尾矿96.480.0510.112.7849.468.3393.88
原矿100.000.0991.272.86100.00100.00100.00
乙硫氮 40铅粗精矿2.971.8522.042.8852.5756.913.00
尾矿97.030.0510.512.8547.4343.0997.00
原矿100.000.1041.152.85100.00100.00100.00
乙硫氮+乙黄药 20+20铅粗精矿4.411.3620.051.8260.5067.782.99
尾矿95.590.0410.442.7339.5032.2297.01
原矿100.000.101.312.69100.00100.00100.00
25#黑药+PT-8 40+10铅粗精矿7.301.0218.684.1871.5296.2110.17
尾矿92.700.0320.0582.9128.483.7989.83
原矿100.000.1041.423.00100.00100.00100.00
), ArticleFig(id=1241064299855139217, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Table 4, caption=

PT-8 dosage test results

, figureFileSmall=null, figureFileBig=null, tableContent=
PT-8用量/(g·t-1)产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
0铅粗精矿3.521.4333.204.9750.5491.676.12
尾矿96.480.0510.112.7849.468.3393.88
原矿100.000.0991.272.86100.00100.00100.00
5铅粗精矿5.011.2228.374.6558.8593.157.85
尾矿94.990.0450.112.8841.156.8592.15
原矿100.000.1041.532.97100.00100.00100.00
10铅粗精矿7.301.0218.684.1871.5296.2110.17
尾矿92.700.0320.0582.9128.483.7989.83
原矿100.000.1041.423.00100.00100.00100.00
20铅粗精矿9.770.6812.062.5064.8093.558.38
尾矿90.230.0400.0902.9635.206.4591.62
原矿100.000.1031.262.92100.00100.00100.00
), ArticleFig(id=1241064300287152535, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表4, caption=

PT-8用量试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
PT-8用量/(g·t-1)产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
0铅粗精矿3.521.4333.204.9750.5491.676.12
尾矿96.480.0510.112.7849.468.3393.88
原矿100.000.0991.272.86100.00100.00100.00
5铅粗精矿5.011.2228.374.6558.8593.157.85
尾矿94.990.0450.112.8841.156.8592.15
原矿100.000.1041.532.97100.00100.00100.00
10铅粗精矿7.301.0218.684.1871.5296.2110.17
尾矿92.700.0320.0582.9128.483.7989.83
原矿100.000.1041.423.00100.00100.00100.00
20铅粗精矿9.770.6812.062.5064.8093.558.38
尾矿90.230.0400.0902.9635.206.4591.62
原矿100.000.1031.262.92100.00100.00100.00
), ArticleFig(id=1241064300656251292, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=EN, label=Table 5, caption=

Zn collector type test results

, figureFileSmall=null, figureFileBig=null, tableContent=
锌捕收剂种类及用量/(g·t-1)产品名称产率/%品位/%回收率/%
PbZnPbZn
乙硫氮 100铅粗精矿9.2014.234.9092.3415.20
锌粗精矿12.740.2418.882.1681.11
尾矿78.060.100.145.503.69
原矿100.001.422.97100.00100.00
复配黄药100铅粗精矿10.9011.662.6389.159.38
锌粗精矿16.880.3615.904.2687.79
尾矿72.220.1300.126.592.83
原矿100.001.433.06100.00100.00
SXF-10 10铅粗精矿8.1918.095.2191.7812.86
锌粗精矿15.100.3218.342.9983.44
尾矿76.710.110.165.233.70
原矿100.001.613.32100.00100.00
), ArticleFig(id=1241064302371721636, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表5, caption=

锌捕收剂种类试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
锌捕收剂种类及用量/(g·t-1)产品名称产率/%品位/%回收率/%
PbZnPbZn
乙硫氮 100铅粗精矿9.2014.234.9092.3415.20
锌粗精矿12.740.2418.882.1681.11
尾矿78.060.100.145.503.69
原矿100.001.422.97100.00100.00
复配黄药100铅粗精矿10.9011.662.6389.159.38
锌粗精矿16.880.3615.904.2687.79
尾矿72.220.1300.126.592.83
原矿100.001.433.06100.00100.00
SXF-10 10铅粗精矿8.1918.095.2191.7812.86
锌粗精矿15.100.3218.342.9983.44
尾矿76.710.110.165.233.70
原矿100.001.613.32100.00100.00
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Closed-circuit test results

, figureFileSmall=null, figureFileBig=null, tableContent=
产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
铅精矿1.893.5262.533.5870.0893.753.07
锌精矿4.030.450.09248.1919.040.2987.97
尾矿94.080.0110.080.2110.885.968.96
原矿100.000.0951.262.21100.00100.00100.00
), ArticleFig(id=1241064302954729905, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064284113916524, language=CN, label=表6, caption=

闭路试验结果

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产品名称产率/%品位/%回收率/%
CuPbZnCuPbZn
铅精矿1.893.5262.533.5870.0893.753.07
锌精矿4.030.450.09248.1919.040.2987.97
尾矿94.080.0110.080.2110.885.968.96
原矿100.000.0951.262.21100.00100.00100.00
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新型浮选药剂提高青海某铅锌矿金属回收率的研究
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林悦 1, 2 , 邹松 1, 2 , 余新阳 1, 2 , 何桂春 1, 2 , 郭舒政 1, 2 , 吴锋 1, 2
矿冶工程杂志 | 选矿 2025,45(5): 77-81
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矿冶工程杂志 | 选矿 2025, 45(5): 77-81
新型浮选药剂提高青海某铅锌矿金属回收率的研究
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林悦1, 2 , 邹松1, 2 , 余新阳1, 2, 何桂春1, 2, 郭舒政1, 2, 吴锋1, 2
作者信息
  • 1.战略金属矿产资源低碳加工与利用江西省重点实验室,江西 赣州 341000
  • 2.江西理工大学 资源与环境工程学院,江西 赣州 341000
  • 林悦(2004—),女,广东揭西人,主要研究方向为矿物加工。E-mail:

通讯作者:

邹松(1990—),男,江西赣州人,博士,内聘副教授,硕士研究生导师,主要从事低碳浮选理论与工艺、绿色选矿新药剂研发等工作。E-mail:
Improvement of Metal Recovery from Lead-Zinc Ore in Qinghai by New Flotation Reagents
Yue LIN1, 2 , Song ZOU1, 2 , Xinyang YU1, 2, Guichun HE1, 2, Shuzheng GUO1, 2, Feng WU1, 2
Affiliations
  • 1.Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metallic Mineral Resources, Ganzhou 341000, Jiangxi, China
  • 2.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
出版时间: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.013
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对青海某铅锌矿进行了浮选药剂制度优化研究。结果表明,采用新型螯合剂PT-8配合常规25#黑药可有效强化铜铅硫化矿物的浮选回收,新型捕收剂SXF-10可以在低用量条件下高效回收矿石中的铁闪锌矿,明显提高铜、铅和锌金属的浮选回收率;在磨矿细度-0.074 mm粒级占70%条件下,铅浮选采用25#黑药+PT-8,锌浮选采用SXF-10,闭路试验可获得Cu品位3.52%、Cu回收率70.08%、Pb品位62.53%、Pb回收率93.75%的含铜铅精矿以及Zn品位48.19%、Zn回收率87.97%的锌精矿。

方铅矿  /  铁闪锌矿  /  铅锌矿  /  浮选  /  浮选药剂  /  螯合剂  /  捕收剂  /  铜铅精矿  /  锌精矿

The flotation reagent system was optimized for a lead-zinc ore in Qinghai based on experimental studies. It is shown that a new chelating agent (PT-8) combined with the conventional 25# xanthate can effectively enhance the flotation recovery of copper-lead sulfide minerals. A new collector (SXF-10) at a low dosage can efficiently recover marmatite from the ore, significantly improving the recoveries of Cu, Pb and Zn from flotation process. With raw ore at a grinding fineness of -0.074 mm 70%, 25# xanthate and PT-8 are used for Pb flotation, and SXF-10 is used for Zn flotation. A closed-circuit test with such process flow can produce a Cu-Pb concentrate grading 3.52% Cu and 62.53% Pb at corresponding recoveries of 70.08% and 93.75%, respectively, and a Zn concentrate grading 48.19% Zn at 87.97% recovery.

galena  /  marmatite  /  lead-zinc ore  /  flotation  /  flotation reagent  /  chelating agent  /  collector  /  Cu-Pb concentrate  /  Zn concentrate
林悦, 邹松, 余新阳, 何桂春, 郭舒政, 吴锋. 新型浮选药剂提高青海某铅锌矿金属回收率的研究. 矿冶工程杂志, 2025 , 45 (5) : 77 -81 . DOI: 10.3969/j.issn.0253-6099.2025.05.013
Yue LIN, Song ZOU, Xinyang YU, Guichun HE, Shuzheng GUO, Feng WU. Improvement of Metal Recovery from Lead-Zinc Ore in Qinghai by New Flotation Reagents[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 77 -81 . DOI: 10.3969/j.issn.0253-6099.2025.05.013
铅和锌是不可缺少的工业原料和主要矿产资源,在有色金属工业中具有举足轻重的地位,广泛应用于钢铁冶金、国防工业、机械电子、化学化工、新能源等领域[1-3]。世界铅锌矿资源分布广泛,截至2023年底,全球已查明的铅和锌资源储量分别达到了20亿t和19亿t,我国铅锌矿资源非常丰富,居世界第二位,总储量仅次于澳大利亚[4-5]。我国铅锌矿资源总体呈现分布广泛且集中、贫矿多富矿少、共伴生组分多、矿石类型复杂等特征[6-7]。铅和锌均属于亲硫元素,铅锌矿物在自然界中往往以硫化物形式存在,其中95%以上的铅锌金属是从硫化铅锌矿中提取出来的。在硫化铅锌矿中,重要的铅锌矿物分别为方铅矿和(铁)闪锌矿,其常与硫化铁、硫化铜等矿物共伴生[8-10]。对于硫化铅锌矿的分离和富集,浮选是目前应用广泛的有效方法[11-12]。硫化铅锌矿中,方铅矿的自然可浮性优于闪锌矿,铅锌矿浮选分离一般采用铅锌优先浮选,因此高效的浮选捕收剂在铅锌分离与回收中起着至关重要的作用。
青海某铅锌矿浮选铅时,以25#黑药为铅捕收剂、常规硫酸锌+亚硫酸钠组合药剂为锌硫矿物抑制剂。25#黑药选择性好,但存在对铜铅矿物捕收能力有限等缺点;另一方面,选矿厂锌浮选采用硫酸铜为活化剂、乙硫氮为捕收剂,生产中硫酸铜用量达到了500~700 g/t,乙硫氮用量更高达100 g/t,药剂成本高,且回收效果不理想。基于以上问题,本文以青海某低品位铅锌硫化矿为研究对象,通过引入新型靶向螯合剂PT-8与常规25#黑药组合使用,有效强化铜铅硫化矿物的浮选回收;采用新型特效捕收剂SXF-10在低用量条件下高效回收锌矿物;并探究降低硫酸铜用量的可能性;通过对比试验确定了适宜的新药剂浮选条件及其对铅锌矿物浮选指标的影响,实现了该矿石中有价金属的综合回收与利用。研究成果可为类似有色金属矿产资源开发利用提供借鉴。
矿石主要化学多元素分析结果见表1。该矿石化学成分较为复杂,可供选矿回收的元素主要是铅、锌和铁;铜和银有综合回收价值。需要注意的是,S含量高达13.23%,Fe含量高达32.75%,说明矿石中有大量硫化铁矿物存在。
矿石主要矿物含量分析结果见表2。矿石中铅矿物和锌矿物分别主要为方铅矿和铁闪锌矿;其他金属硫化物以磁黄铁矿和黄铁矿为主,还含有少量菱铁矿等。主要脉石矿物为石英和辉石,其次为方解石、绿泥石、高岭石等。
铅锌浮选工艺流程[13-15]主要有优先浮选、部分混合优先浮选、等可浮选、异步浮选等。试验先浮选铅,浮铅尾矿再浮选锌。浮选试验原则流程见图1
试验药剂包括硫酸锌、亚硫酸钠、硫酸铜、25#黑药、乙硫氮、乙基黄药、PT-8、2#油、SXF-10等。其中PT-8是一种含有硫脲官能团的有机螯合物,SXF-10是一种环境友好型的小分子有机化合物,均为江西理工大学自主研发的新型药剂。
磨矿细度-0.074 mm粒级占70%,硫酸锌、亚硫酸钠用量分别为600、300 g/t,2#油用量5 g/t条件下,按照图1所示流程,考察和对比了铅捕收剂种类对铅浮选指标的影响,结果见表3。结果表明,采用单一乙硫氮、乙硫氮+乙黄药混合药剂为捕收剂(用量均为40 g/t),浮选指标均不理想,铅粗精矿Pb回收率均低于70%;采用现场生产所使用的25#黑药为捕收剂(用量40 g/t),铅粗精矿中Cu回收率和Pb回收率分别为50.54%和91.67%;以25#黑药+PT-8为捕收剂时,铅粗精矿中Cu回收率和Pb回收率分别可达71.52%和96.21%,较单一25#黑药Cu回收率提高了20.98百分点,Pb回收率提高了4.54百分点。新型螯合剂PT-8能明显强化铜铅硫化矿物的浮选回收。
PT-8在浮选过程中能有效强化传统捕收剂(如本文中的25#黑药)对铜铅矿物的吸附作用,从而提高目标矿物的浮选回收率。25#黑药用量40 g/t,其他条件不变,进行了粗选PT-8用量试验,结果见表4。结果表明,未添加PT-8时,铅粗精矿中Cu回收率仅50.54%、Pb回收率为91.67%,25#黑药对矿物的捕收能力较弱,Cu回收率还有很大提升空间。在25#黑药基础上添加PT-8,铅粗精矿中Cu回收率58%~72%、Pb回收率93%~97%。由此可知,添加PT-8后,铅粗精矿中Cu及Pb回收率均明显提升;随着PT-8用量增大,铅粗精矿中铅回收率先增大后有所降低。综合考虑,PT-8适宜用量为10 g/t。
在磨矿细度-0.074 mm粒级占70%,硫酸锌、亚硫酸钠用量分别为600、300 g/t,25#黑药、PT-8用量分别为40、10 g/t,2#油用量5 g/t条件下选铅,选铅尾矿再浮选锌。按照图1所示流程,在硫酸铜用量500 g/t、2#油用量5 g/t条件下,进行了锌捕收剂种类对比试验,结果见表5。SXF-10是一种硫化锌矿高效捕收剂,其分子中同时具有基团,对矿物兼具捕收能力和选择性。从表5可知,100 g/t乙硫氮(现场生产用捕收剂)为锌捕收剂时,可获得Zn品位18.88%、Zn回收率81.11%的锌粗精矿;100 g/t复配黄药为锌捕收剂时,可获得Zn品位15.90%、Zn回收率87.79%的锌粗精矿;而10 g/t SXF-10为锌捕收剂时,可获得Zn品位18.34%、Zn回收率83.44%的锌粗精矿,Zn回收率比乙硫氮时高2.33百分点,比复配黄药略低,但SXF-10用量是常规乙硫氮和复配黄药的1/10,药剂用量大幅度下降。新型捕收剂SXF-10是锌矿物的一种特效捕收剂,可作为下一步试验的选锌捕收剂。
SXF-10对闪锌矿/铁闪锌矿捕收能力强,而对黄铁矿/磁黄铁矿浮选能力微弱,能有效提高精矿品位和回收率。相同条件下,考察了SXF-10用量对锌矿物浮选指标的影响,结果见图2。结果表明,随着SXF-10用量增大,锌粗精矿中Zn回收率先逐渐增大后略微下降。综合考虑,确定SXF-10的适宜用量为10~15 g/t。
硫酸铜是铁闪锌矿优良的活化剂。SXF-10用量10 g/t,其他条件不变,进行了硫酸铜用量试验,结果如图3所示。由图3可知,随着硫酸铜用量增大,锌粗精矿中Zn回收率先缓慢增大再逐渐降低,适宜的硫酸铜用量为400 g/t,此时锌粗精矿中Zn回收率为84.93%。
在条件试验基础上,进行了新药剂体系下的铅锌闭路试验,试验结果见表6,试验流程如图4所示。铅浮选以25#黑药+PT-8为捕收剂,锌浮选以SXF-10为捕收剂,采用一粗三精三扫选铅和一粗三精三扫选锌,最终可获得Cu品位3.52%、Cu回收率70.08%、Pb品位62.53%、Pb回收率93.75%的铅精矿以及Zn品位48.19%、Zn回收率87.97%的锌精矿,浮选指标优异。
1)原矿为含铜银的铅锌原生多金属硫化矿。矿石中铅矿物主要为方铅矿,锌矿物基本为铁闪锌矿,其他金属硫化物以磁黄铁矿和黄铁矿为主,二者均有较高含量,此外含有少量菱铁矿矿物等。脉石矿物以硅酸盐型脉石为主,主要为石英和辉石,其次为方解石、绿泥石、高岭石等。
2)进行了详细的药剂对比及优化试验,发现添加新型螯合剂PT-8能有效强化常规25#黑药对铜铅矿物的浮选回收;对于锌浮选,采用新型特效捕收剂SXF-10,在用量10 g/t条件下,其浮选指标接近或优于常规的100 g/t黄药或乙硫氮为捕收剂的指标,药剂用量大幅度下降,有利于降低药剂成本。
3)闭路试验结果表明,铅浮选采用常规25#黑药+PT-8,锌浮选采用SXF-10,最终可获得Cu品位3.52%、Cu回收率70.08%、Pb品位62.53%、Pb回收率93.75%的含铜铅精矿以及Zn品位48.19%、Zn回收率87.97%的锌精矿。
  • 江西省自然科学基金(20242BAB20188)
  • 国家自然科学基金(52404280)
  • 江西理工大学博士科研启动项目(205200100692)
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2025年第45卷第5期
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doi: 10.3969/j.issn.0253-6099.2025.05.013
  • 接收时间:2025-03-14
  • 首发时间:2026-03-18
  • 出版时间:2025-10-01
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  • 收稿日期:2025-03-14
基金
江西省自然科学基金(20242BAB20188)
国家自然科学基金(52404280)
江西理工大学博士科研启动项目(205200100692)
作者信息
    1.战略金属矿产资源低碳加工与利用江西省重点实验室,江西 赣州 341000
    2.江西理工大学 资源与环境工程学院,江西 赣州 341000

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邹松(1990—),男,江西赣州人,博士,内聘副教授,硕士研究生导师,主要从事低碳浮选理论与工艺、绿色选矿新药剂研发等工作。E-mail:
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2种不同金属材料的力学参数

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种数
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Percentage of
total species (%)

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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