Article(id=1241081032057868883, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.04.039, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1710259200000, receivedDateStr=2024-03-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773826376212, onlineDateStr=2026-03-18, pubDate=1722441600000, pubDateStr=2024-08-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773826376212, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773826376212, creator=13701087609, updateTime=1773826376212, updator=13701087609, issue=Issue{id=1241081025531540408, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='4', pageStart='1', pageEnd='258', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773826374657, creator=13701087609, updateTime=1773827517159, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241085817590960730, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241085817590960731, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=203, endPage=206, ext={EN=ArticleExt(id=1241081032380830301, articleId=1241081032057868883, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Regrinding and Reseparation of Slag-Beneficiated Copper Sulfide Ore from Congo (Kinshasa), columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

To recover the copper resource therein, mineral processing of a slag-beneficiated copper sulfide ore from Congo (Kinshasa) with 9.62% Cu was investigated. A regrinding and reseparation flotation process was proposed based on multi-element chemical analysis and mineral occurrence analysis. It is found that with this process, a copper concentrates with Cu grade of 25.16% and Cu recovery of 90.67% can be collected.

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对刚果(金)某含铜9.62%的低品位渣选硫化铜矿进行了回收铜的选矿试验研究。在化学多元素分析、赋存状态分析基础上,采用再磨再选浮选工艺,获得了Cu品位25.16%、回收率90.67%的铜精矿产品。

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周宽达(1995—),男,云南曲靖人,硕士,助理工程师,主要研究方向为有色金属选冶及二次资源的回收及开发利用。E-mail:
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刘杰(1983—),男,山西人,硕士,高级工程师,主要从事有色金属选冶技术、质量控制和生产管理工作。E-mail:

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刘杰(1983—),男,山西人,硕士,高级工程师,主要从事有色金属选冶技术、质量控制和生产管理工作。E-mail:

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刘杰(1983—),男,山西人,硕士,高级工程师,主要从事有色金属选冶技术、质量控制和生产管理工作。E-mail:

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CuCoSFeMnCaO
9.620.075.962.480.021.95
MgOAl2O3SiO2NaK2OCuO
3.994.3942.000.331.054.08
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试样化学多元素分析结果(质量分数)

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CuCoSFeMnCaO
9.620.075.962.480.021.95
MgOAl2O3SiO2NaK2OCuO
3.994.3942.000.331.054.08
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铜物相质量分数/%分布率/%
水溶铜<0.005
氧化铜1.43014.86
次生硫化铜7.81081.19
原生硫化铜0.0700.73
其他0.3103.22
合计9.620100.00
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试样铜物相分析结果

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铜物相质量分数/%分布率/%
水溶铜<0.005
氧化铜1.43014.86
次生硫化铜7.81081.19
原生硫化铜0.0700.73
其他0.3103.22
合计9.620100.00
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矿物质量分数/%矿物质量分数/%
蓝辉铜矿5.48钠长石0.27
铜蓝5.03硅孔雀石0.17
斑铜矿1.56褐铁矿1.83
黄铜矿0.20金红石0.32
硫砷铜矿0.11石英49.88
白云母11.61绿泥石19.57
石膏2.16磷灰石0.20
正长石0.74其他0.21
电气石0.66
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试样矿物组成

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矿物质量分数/%矿物质量分数/%
蓝辉铜矿5.48钠长石0.27
铜蓝5.03硅孔雀石0.17
斑铜矿1.56褐铁矿1.83
黄铜矿0.20金红石0.32
硫砷铜矿0.11石英49.88
白云母11.61绿泥石19.57
石膏2.16磷灰石0.20
正长石0.74其他0.21
电气石0.66
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粒级/mm产率/%Cu品位/%分布率/%
+0.1505.9912.948.02
0.074~0.15017.486.9212.53
0.038~0.07411.139.2910.71
0.025~0.0380.9812.811.30
-0.02564.4210.1167.44
合计100.009.66100.00
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试样粒度筛分分析及铜分布情况

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粒级/mm产率/%Cu品位/%分布率/%
+0.1505.9912.948.02
0.074~0.15017.486.9212.53
0.038~0.07411.139.2910.71
0.025~0.0380.9812.811.30
-0.02564.4210.1167.44
合计100.009.66100.00
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磨矿时间/min粒级/mm产率/%品位/%分布率/%
CuCuSCuCuS
6+0.07412.116.925.028.707.84
0.038~0.07413.468.056.5911.2611.45
0.025~0.0382.378.426.742.072.06
-0.02572.0610.428.4677.9778.65
合计100.009.637.75100.00100.00
8+0.0749.977.005.497.257.00
0.038~0.07415.318.136.8012.9413.33
0.025~0.0382.469.578.022.452.53
-0.02572.2610.308.3477.3677.14
合计100.009.627.81100.00100.00
10+0.0746.467.035.644.734.65
0.038~0.07414.987.155.8511.1511.19
0.025~0.0381.808.226.891.541.58
-0.02576.7610.348.4382.5882.58
合计100.009.617.84100.00100.00
12+0.0746.226.655.014.294.04
0.038~0.07414.387.446.1311.1111.44
0.025~0.0381.549.377.691.511.54
-0.02577.8610.278.2183.0982.98
合计100.009.627.70100.00100.00
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磨矿产品粒度筛析及主要有价组分分布情况

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磨矿时间/min粒级/mm产率/%品位/%分布率/%
CuCuSCuCuS
6+0.07412.116.925.028.707.84
0.038~0.07413.468.056.5911.2611.45
0.025~0.0382.378.426.742.072.06
-0.02572.0610.428.4677.9778.65
合计100.009.637.75100.00100.00
8+0.0749.977.005.497.257.00
0.038~0.07415.318.136.8012.9413.33
0.025~0.0382.469.578.022.452.53
-0.02572.2610.308.3477.3677.14
合计100.009.627.81100.00100.00
10+0.0746.467.035.644.734.65
0.038~0.07414.987.155.8511.1511.19
0.025~0.0381.808.226.891.541.58
-0.02576.7610.348.4382.5882.58
合计100.009.617.84100.00100.00
12+0.0746.226.655.014.294.04
0.038~0.07414.387.446.1311.1111.44
0.025~0.0381.549.377.691.511.54
-0.02577.8610.278.2183.0982.98
合计100.009.627.70100.00100.00
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-0.074 mm粒级占比/%精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
87.9062.1912.8410.2390.3490.22
90.0362.7812.6810.1690.1690.63
93.5463.8712.518.8291.2390.44
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磨矿细度条件试验结果

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-0.074 mm粒级占比/%精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
87.9062.1912.8410.2390.3490.22
90.0362.7812.6810.1690.1690.63
93.5463.8712.518.8291.2390.44
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丁基黄药用量/(g·t-1精矿产率/%精矿品位/%回收率/%
CuCuSCuCuS
4068.7111.609.2186.4990.50
6066.7912.2310.0886.0990.00
8071.2211.318.8088.1590.93
10071.3011.219.7687.9490.91
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捕收剂丁基黄药用量试验结果

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丁基黄药用量/(g·t-1精矿产率/%精矿品位/%回收率/%
CuCuSCuCuS
4068.7111.609.2186.4990.50
6066.7912.2310.0886.0990.00
8071.2211.318.8088.1590.93
10071.3011.219.7687.9490.91
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粗选矿浆质量浓度/%精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
1553.5912.9310.2174.0676.61
1857.6812.469.9778.0080.22
2161.4611.999.4880.6783.07
2466.8011.618.9984.2185.85
2769.5811.599.3785.2787.37
3073.9911.419.0787.6689.49
3583.5710.568.0792.4193.98
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粗选矿浆质量浓度试验结果

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粗选矿浆质量浓度/%精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
1553.5912.9310.2174.0676.61
1857.6812.469.9778.0080.22
2161.4611.999.4880.6783.07
2466.8011.618.9984.2185.85
2769.5811.599.3785.2787.37
3073.9911.419.0787.6689.49
3583.5710.568.0792.4193.98
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精选次数/次精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
148.8714.5312.1874.1479.52
231.7118.4816.0962.3068.91
323.4221.5119.1453.0759.68
420.5022.9820.3848.0853.72
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精选流程试验结果

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精选次数/次精矿产率/%精矿品位/%回收率/%
CuCu(CuS)CuCu(CuS)
148.8714.5312.1874.1479.52
231.7118.4816.0962.3068.91
323.4221.5119.1453.0759.68
420.5022.9820.3848.0853.72
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产品名称产率/%品位/%回收率/%
CuCuSCuCuS
精矿34.7625.1620.4490.6790.70
尾矿65.241.381.129.339.30
给矿100.009.657.83100.00100.00
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闭路试验结果

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产品名称产率/%品位/%回收率/%
CuCuSCuCuS
精矿34.7625.1620.4490.6790.70
尾矿65.241.381.129.339.30
给矿100.009.657.83100.00100.00
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CuCoSFeMnCaMg
25.160.0618.844.460.010.324.11
AlSiO2NaKCuOP
4.3131.170.760.940.708.13
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精矿化学多元素分析结果(质量分数)

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CuCoSFeMnCaMg
25.160.0618.844.460.010.324.11
AlSiO2NaKCuOP
4.3131.170.760.940.708.13
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刚果(金)某渣选硫化铜矿再磨再选试验研究
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刘杰 , 王洪杰 , 周宽达 , 蒙文飞 , 兰福荫 , 陈兴海 , 陆智国
矿冶工程杂志 | 选矿 2024,44(4): 203-206
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矿冶工程杂志 | 选矿 2024, 44(4): 203-206
刚果(金)某渣选硫化铜矿再磨再选试验研究
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刘杰 , 王洪杰, 周宽达 , 蒙文飞, 兰福荫, 陈兴海, 陆智国
作者信息
  • 华刚矿业股份有限公司,北京 100039
  • 刘杰(1983—),男,山西人,硕士,高级工程师,主要从事有色金属选冶技术、质量控制和生产管理工作。E-mail:

通讯作者:

周宽达(1995—),男,云南曲靖人,硕士,助理工程师,主要研究方向为有色金属选冶及二次资源的回收及开发利用。E-mail:
Regrinding and Reseparation of Slag-Beneficiated Copper Sulfide Ore from Congo (Kinshasa)
Jie LIU , Hongjie WANG, Kuanda ZHOU , Wenfei MENG, Fuyin LAN, Xinghai CHEN, Zhiguo LU
Affiliations
  • SINO-CONGOLAISE DES Mines S A, Beijing 100039, China
出版时间: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.039
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对刚果(金)某含铜9.62%的低品位渣选硫化铜矿进行了回收铜的选矿试验研究。在化学多元素分析、赋存状态分析基础上,采用再磨再选浮选工艺,获得了Cu品位25.16%、回收率90.67%的铜精矿产品。

渣选硫化铜矿  /  磨矿  /  浮选  /  刚果(金)  /  铜精矿

To recover the copper resource therein, mineral processing of a slag-beneficiated copper sulfide ore from Congo (Kinshasa) with 9.62% Cu was investigated. A regrinding and reseparation flotation process was proposed based on multi-element chemical analysis and mineral occurrence analysis. It is found that with this process, a copper concentrates with Cu grade of 25.16% and Cu recovery of 90.67% can be collected.

slag-beneficiated copper sulfide ore  /  milling  /  flotation  /  Congo (Kinshasa)  /  copper concentrate
刘杰, 王洪杰, 周宽达, 蒙文飞, 兰福荫, 陈兴海, 陆智国. 刚果(金)某渣选硫化铜矿再磨再选试验研究. 矿冶工程杂志, 2024 , 44 (4) : 203 -206 . DOI: 10.3969/j.issn.0253-6099.2024.04.039
Jie LIU, Hongjie WANG, Kuanda ZHOU, Wenfei MENG, Fuyin LAN, Xinghai CHEN, Zhiguo LU. Regrinding and Reseparation of Slag-Beneficiated Copper Sulfide Ore from Congo (Kinshasa)[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 203 -206 . DOI: 10.3969/j.issn.0253-6099.2024.04.039
非洲矿产资源极为丰富,铜、钴、金、铀等储量均居世界首位[1]。近年来,随着中国在非洲矿业投资逐渐增加,刚果(金)境内一系列铜钴矿得以开发利用[1]。目前,非洲刚果(金)地区大部分硫氧混合型铜钴矿石的回收技术以浮选和浮选-浸出联合工艺为主[2-6]。每年选冶工艺生产过程中产生大量浸出渣,部分浸出渣铜品位较高,直接丢弃既污染环境又造成资源浪费。如何高效回收利用这部分含铜浸出渣已成为矿山企业必须面对的问题。本文针对低品位渣选硫化铜中铜资源回收问题,对刚果(金)某地堆存的大量渣选硫化铜矿开展选矿试验研究,旨在为工业化回收利用该资源探索简单易行的选矿方案。
刚果(金)某矿山原生铜钴混合矿经先浮选硫化铜、后硫化浮选氧化铜工艺得到粗选氧化铜精矿,粗选氧化铜精矿硫酸浸出后的浸出渣经酸性浮选后获得渣选低品位硫化铜矿。试验所用试样取自该渣选硫化铜沉淀池。试样采用网格法取样获得,对获得的样品全部混匀缩分作为试验样,考虑到实际生产中的需求,试样未进行清水洗涤。
试样化学多元素和铜物相分析结果分别见表1和见表2。由表12可知,矿石中可回收的主要有价元素为Cu,其次为Co,其他元素品位太低,不具备回收价值。本文主要考虑铜金属的回收,其氧化率为42.41%。
对试样进行了X射线衍射分析,并结合显微镜分析,测得试样矿物组成如表3所示。试样中铜矿物主要为蓝辉铜矿和铜蓝,其次为斑铜矿,另有少量黄铜矿、硫砷铜矿和硅孔雀石,微量辉铜矿、硫铜钴矿等。脉石矿物主要为石英,其次为绿泥石和白云母,另有少量石膏和褐铁矿,微量正长石、电气石、钠长石、金红石、磷灰石、赤铁矿、黑云母、高岭石、铬铁矿、锆石等。
试样粒度筛分分析及铜分布情况见表4。试样中-0.074 mm粒级占76.53%,-0.025 mm粒级占64.42%,各粒级产品Cu品位介于6.92%~12.94%,无明显富集情况;12.53%的铜分布于0.074~0.15 mm粒级,10.71%的铜分布于0.038~0.074 mm粒级,67.44%的铜分布于-0.025 mm粒级。由此分析可知,试样中铜嵌布粒度细,常规重选或浮选方法难以高效回收试样中的铜。
为了合理回收这部分资源,对该低品位渣选硫化铜矿开展了原矿石灰调浆浮选、洗涤后浮选、低浓度浮选和原矿再磨再选等大量探索试验研究,并结合现场生产实践,最终确定以再磨再选方案实现渣选铜精矿的高效回收。试验原则流程见图1
物料再磨,使目的矿物在较细的粒级下与脉石矿物解离,从而在浮选阶段有效回收是浮选回收尾渣中有价金属的一个关键环节。对不同时间下的磨矿产品进行了粒度筛析和主要有价元素分布情况分析,结果见表5。随着磨矿时间增加,+0.074 mm、0.038~0.074 mm、0.025~0.038 mm粒级产品Cu品位接近,-0.025 mm粒级产品Cu品位高于上述3个粒级。
在丁基黄药用量60 g/t、2#油用量30 g/t条件下,按照图1所示流程,探究了磨矿细度对浮选指标的影响,结果见表6。由表6可知,随着再磨细度-0.074 mm粒级含量增加,粗选硫化铜精矿Cu品位逐渐降低,回收率逐渐升高;CuS品位和回收率逐渐降低。综合考虑,确定适宜的磨矿细度为-0.074 mm粒级占90.03%。
在磨矿细度-0.074 mm粒级占90.03%、2#油用量40 g/t条件下,进行了粗选捕收剂丁基黄药用量试验,结果见表7。由表7可知,随着粗选丁基黄药用量增加,精矿Cu、CuS品位均先升高后降低,Cu、CuS回收率变化不大。综合考虑,确定粗选捕收剂丁基黄药用量为60 g/t。
在磨矿细度-0.074 mm粒级占90.03%、粗选捕收剂丁基黄药用量60 g/t、起泡剂2#油用量35 g/t条件下,进行了粗选矿浆质量浓度试验,结果见表8。由表8可知,随着粗选矿浆质量浓度从15%提高至35%,粗选硫化铜精矿产品产率从53.59%提高至83.57%,Cu品位从12.93%降低至10.56%,Cu回收率从74.06%提高至92.41%。粗精矿中Cu和CuS回收率随矿浆质量浓度增加而增加,品位随矿浆质量浓度降低而降低。考虑到后续精选和扫选作业,粗选流程以保证产品产率和回收率为主,同时需保证粗精矿有一定品位,确定粗选矿浆质量浓度为30%。
在粗选条件试验基础上,确定适宜的磨矿细度为-0.074 mm粒级占90.03%,粗选捕收剂丁基黄药用量60 g/t,起泡剂2#油用量30 g/t,粗选矿浆质量浓度30%。采用每次增加一段精选和一段扫选的工艺,进行了精选流程试验,结果见表9。由表9可知,随着精选次数增加,精矿产率逐渐降低,精矿Cu回收率也逐渐降低;但精矿产品中Cu和CuS品位随着精选次数增加而增加。由此可见,增加精选段数能有效提升精矿产品品位,但随着精选次数增加,品位提升的幅度逐渐降低。综合考虑后续闭路试验和企业现有技术条件,确定以一次粗选、三次精选、三次扫选的工艺流程进行闭路试验。
在条件试验和精选流程试验基础上进行了闭路试验,试验流程见图2,结果见表10。在磨矿细度-0.074 mm粒级占90.03%、粗选捕收剂丁基黄药用量60 g/t、起泡剂2#油用量30 g/t、矿浆质量浓度30%条件下,经一次粗选、三次精选、三次扫选、中矿顺序返回的闭路浮选,可获得产率34.76%、Cu品位25.16%、Cu回收率90.67%的硫化铜精矿。
对精矿进行了化学多元素分析,结果见表11。精矿中Fe质量分数4.46%、Mg质量分数4.11%、Al质量分数4.31%、SiO2质量分数31.17%、P质量分数8.13%,产品达到YS/T 318—2007铜精矿三级品标准。
刚果(金)某矿山沉淀池中堆存大量低品位渣选铜精矿,Cu品位9.62%,主要铜矿物为蓝辉铜矿和铜蓝,粒度较细,各粒级中铜无明显富集情况。试样球磨至-0.074 mm粒级占90.03%,以丁基黄药为捕收剂、2#油为起泡剂,经一次粗选、三次精选、三次扫选、中矿顺序返回的再磨再选浮选流程,可获得产率34.76%、Cu品位25.13%、回收率90.67%的铜精矿,精矿产品达到YS/T 318—2007铜精矿三级品标准。采用再磨再选工艺,获得了良好的技术指标,为该铜资源的回收提供了依据。
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2024年第44卷第4期
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doi: 10.3969/j.issn.0253-6099.2024.04.039
  • 接收时间:2024-03-13
  • 首发时间:2026-03-18
  • 出版时间:2024-08-01
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  • 收稿日期:2024-03-13
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    华刚矿业股份有限公司,北京 100039

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周宽达(1995—),男,云南曲靖人,硕士,助理工程师,主要研究方向为有色金属选冶及二次资源的回收及开发利用。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
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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