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Based on flotation tests of a low-grade copper sulfide ore, a processing technique was developed, composed of flash flotation of Cu, Cu-S bulk flotation, and Cu-S separation after regrinding of roughing concentrate from bulk flotation. Effects of factors on flotation were also explored, including grinding fineness, flotation reagent, regrinding fineness of roughing concentrate from bulk flotation. Ammonium dibutyl dithiophosphate was used as the collector for Cu in the flash flotation, a combination of ammonium dibutyl dithiophosphate and butyl xanthate as the collector for Cu-S bulk flotation, lime as a sulfur depressant, and terpineol oil as a frother. With grinding fineness of -0.074 mm 60% and regrinding fineness of -0.045 mm 70%, a closed-circuit test for the raw ore assaying 0.40% Cu and 2.45% S produced a bulk copper concentrate grading 19.49% Cu at 87.68% recovery, and a sulfur concentrate grading 48.65% S at 35.11% recovery. It is concluded that efficient separation and enrichment of copper and comprehensive recovery of sulfur from this low-grade copper ore can be actualized by this technique.
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对某低品位硫化铜矿进行了浮选试验研究,开发了“铜快速浮选-铜硫混合浮选-混合粗精矿再磨后铜硫分离”工艺,系统研究了磨矿细度、浮选药剂、混合粗精矿再磨细度等因素对铜选别富集的影响。采用丁铵黑药为铜快速浮选捕收剂、丁铵黑药与丁基黄药组合为铜硫混合浮选捕收剂、石灰为硫抑制剂、松醇油为起泡剂,在磨矿细度-0.074 mm粒级占60%、再磨细度-0.045 mm粒级占70%条件下,对Cu品位0.40%、S品位2.45%的原矿,闭路试验获得了Cu品位19.49%、回收率87.68%的混合铜精矿和S品位48.65%、回收率35.11%的硫精矿,实现了该低品位铜矿中铜的高效富集以及硫的综合回收。
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, authorsList=吕兵超)}, authors=[Author(id=1241064286689227254, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=123579469@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241064286840222202, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, authorId=1241064286689227254, language=EN, stringName=Bingchao LYU, firstName=Bingchao, middleName=null, lastName=LYU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Zinjin Mining Group Co, Ltd, Shanghang 364200, Fujian, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241064286940885505, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, authorId=1241064286689227254, language=CN, stringName=吕兵超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=紫金矿业集团股份有限公司,福建 上杭 364200, bio={"content":"
吕兵超(1988—),男,河南漯河人,工程师,主要从事矿物加工工艺研究与应用工作。E-mail:123579469@qq.com
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吕兵超(1988—),男,河南漯河人,工程师,主要从事矿物加工工艺研究与应用工作。E-mail:123579469@qq.com
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Conservation and Utilization of Mineral Resources,
2020,
40(4): 157-166., articleTitle=The development of research on the pyrite flotation depressants, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1241064286563398119, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, xref=null, ext=[AuthorCompanyExt(id=1241064286571786728, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, companyId=1241064286563398119, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Zinjin Mining Group Co, Ltd, Shanghang 364200, Fujian, China), AuthorCompanyExt(id=1241064286584369644, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, companyId=1241064286563398119, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=紫金矿业集团股份有限公司,福建 上杭 364200)])], figs=[ArticleFig(id=1241064290766090944, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.1, caption=
Basic flowchart in test, figureFileSmall=sXcSsiUU0rOkzxTdFTf6jQ==, figureFileBig=i3QlVqXG5YaioMwHkscTEQ==, tableContent=null), ArticleFig(id=1241064290875142859, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图1, caption=
试验原则流程, figureFileSmall=sXcSsiUU0rOkzxTdFTf6jQ==, figureFileBig=i3QlVqXG5YaioMwHkscTEQ==, tableContent=null), ArticleFig(id=1241064291181327077, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.2, caption=
Effect of grinding fineness on Cu flash flotation, figureFileSmall=16PgBrvOj/+pWXtCSr/Msg==, figureFileBig=3SQwWt7KG/V5lOsQ+1YWgg==, tableContent=null), ArticleFig(id=1241064291319739123, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图2, caption=
磨矿细度对铜快速浮选的影响, figureFileSmall=16PgBrvOj/+pWXtCSr/Msg==, figureFileBig=3SQwWt7KG/V5lOsQ+1YWgg==, tableContent=null), ArticleFig(id=1241064291458151174, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.3, caption=
Effect of lime dosage on Cu flash flotation, figureFileSmall=xAyixVaEAQSS4lU8G6WIng==, figureFileBig=M/O7AjBqEdsbRChcRffEfA==, tableContent=null), ArticleFig(id=1241064291563008784, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图3, caption=
石灰用量对铜快速浮选的影响, figureFileSmall=xAyixVaEAQSS4lU8G6WIng==, figureFileBig=M/O7AjBqEdsbRChcRffEfA==, tableContent=null), ArticleFig(id=1241064291688837917, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.4, caption=
Effect of ammonium dibutyl dithiophosphate dosage on Cu flash flotation, figureFileSmall=XgZTpUmuUteVgTNlyoi1aw==, figureFileBig=bH8vDuf6wVFS4oWLBMAKKw==, tableContent=null), ArticleFig(id=1241064291806278445, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图4, caption=
丁铵黑药用量对铜快速浮选的影响, figureFileSmall=XgZTpUmuUteVgTNlyoi1aw==, figureFileBig=bH8vDuf6wVFS4oWLBMAKKw==, tableContent=null), ArticleFig(id=1241064291902747452, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.5, caption=
Effect of mixed collector dosage on bulk flotation, figureFileSmall=CFy/XYtFo5DmbKdgb+t1TA==, figureFileBig=KSqNQ8aO7PT28fruKiFFUA==, tableContent=null), ArticleFig(id=1241064293555303238, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图5, caption=
混合捕收剂用量对混合浮选的影响, figureFileSmall=CFy/XYtFo5DmbKdgb+t1TA==, figureFileBig=KSqNQ8aO7PT28fruKiFFUA==, tableContent=null), ArticleFig(id=1241064293924402003, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.6, caption=
Effect of collector ratios on bulk flotation, figureFileSmall=zEfWU49zhQnndpJEvIHtow==, figureFileBig=hBDZ7WCwmajm5QrU58WR3A==, tableContent=null), ArticleFig(id=1241064294159283036, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图6, caption=
捕收剂配比对混合浮选的影响, figureFileSmall=zEfWU49zhQnndpJEvIHtow==, figureFileBig=hBDZ7WCwmajm5QrU58WR3A==, tableContent=null), ArticleFig(id=1241064294352221032, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.7, caption=
Effect of regrinding fineness on Cu/S separation, figureFileSmall=ZAyklntCwLvnc1scWuwv3A==, figureFileBig=4oEqOZsrWb5GFyw62W1Neg==, tableContent=null), ArticleFig(id=1241064294519993203, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图7, caption=
再磨细度对铜硫分离浮选指标的影响, figureFileSmall=ZAyklntCwLvnc1scWuwv3A==, figureFileBig=4oEqOZsrWb5GFyw62W1Neg==, tableContent=null), ArticleFig(id=1241064294817788795, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.8, caption=
Effect of lime dosage on Cu/S separation, figureFileSmall=zGgoW3VvjR87lrmnsMTqDQ==, figureFileBig=G9q9w2dRVbKSO7kGQd1dog==, tableContent=null), ArticleFig(id=1241064294952006536, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图8, caption=
石灰用量对铜硫分离浮选指标的影响, figureFileSmall=zGgoW3VvjR87lrmnsMTqDQ==, figureFileBig=G9q9w2dRVbKSO7kGQd1dog==, tableContent=null), ArticleFig(id=1241064295170110358, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Fig.9, caption=
Flowchart for closed-circuit test, figureFileSmall=och3hbDZlP7d58wA62DQDQ==, figureFileBig=lEvkGA1Y2p66jwPWDUCF0g==, tableContent=null), ArticleFig(id=1241064295300133792, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=图9, caption=
闭路试验流程, figureFileSmall=och3hbDZlP7d58wA62DQDQ==, figureFileBig=lEvkGA1Y2p66jwPWDUCF0g==, tableContent=null), ArticleFig(id=1241064295505654699, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Table 1, caption=
Multi-elemental analysis of raw ore
, figureFileSmall=null, figureFileBig=null, tableContent=
| Cu | S | Ag1) | Au1) | As | SiO2 | Al2O3 | Fe |
| 0.36 | 2.34 | 2.3 | 0.17 | 0.017 | 72.27 | 11.33 | 2.74 |
| Fe2O3 | K2O | Pb | Na2O | CaO | MgO | TiO2 | Zn |
| 3.92 | 1.58 | 0.032 | 0.083 | 0.026 | 0.016 | 0.044 | <0.01 |
), ArticleFig(id=1241064295648261043, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=表1, caption=
原矿化学多元素分析结果(质量分数)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Cu | S | Ag1) | Au1) | As | SiO2 | Al2O3 | Fe |
| 0.36 | 2.34 | 2.3 | 0.17 | 0.017 | 72.27 | 11.33 | 2.74 |
| Fe2O3 | K2O | Pb | Na2O | CaO | MgO | TiO2 | Zn |
| 3.92 | 1.58 | 0.032 | 0.083 | 0.026 | 0.016 | 0.044 | <0.01 |
), ArticleFig(id=1241064295941862330, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Table 2, caption=
Mineral composition of raw ore
, figureFileSmall=null, figureFileBig=null, tableContent=
| 蓝辉铜矿 | 铜蓝 | 硫砷铜矿 | 黄铜矿 | 黄铁矿 | 褐铁矿 |
| 0.46 | 0.11 | 0.09 | 0.01 | 4.28 | 0.62 |
| 石英 | 明矾石 | 地开石 | 白云母 | 绿泥石 | 其他 |
| 71.27 | 8.73 | 10.25 | 0.68 | 0.32 | 7.18 |
), ArticleFig(id=1241064296164160453, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=表2, caption=
原矿矿物组成分析结果(质量分数)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 蓝辉铜矿 | 铜蓝 | 硫砷铜矿 | 黄铜矿 | 黄铁矿 | 褐铁矿 |
| 0.46 | 0.11 | 0.09 | 0.01 | 4.28 | 0.62 |
| 石英 | 明矾石 | 地开石 | 白云母 | 绿泥石 | 其他 |
| 71.27 | 8.73 | 10.25 | 0.68 | 0.32 | 7.18 |
), ArticleFig(id=1241064296382264269, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Table 3, caption=
Copper phase analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 铜物相 | 铜含量/% | 铜占有率/% |
|---|
| 水溶性铜 | 0.004 1 | 1.19 |
| 自由氧化铜 | 0.018 | 10.24 |
| 结合氧化铜 | 0.002 5 | 0.73 |
| 次生硫化铜 | 0.26 | 70.67 |
| 原生硫化铜 | 0.059 | 17.17 |
), ArticleFig(id=1241064297959322585, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=表3, caption=
铜物相分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 铜物相 | 铜含量/% | 铜占有率/% |
|---|
| 水溶性铜 | 0.004 1 | 1.19 |
| 自由氧化铜 | 0.018 | 10.24 |
| 结合氧化铜 | 0.002 5 | 0.73 |
| 次生硫化铜 | 0.26 | 70.67 |
| 原生硫化铜 | 0.059 | 17.17 |
), ArticleFig(id=1241064298118706148, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=EN, label=Table 4, caption=
Result of closed-circuit test
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Cu | S | Cu | S |
|---|
| 高品位铜精矿 | 1.60 | 20.16 | 45.89 | 81.49 | 29.99 |
| 低品位铜精矿 | 0.18 | 13.56 | 35.42 | 6.19 | 2.62 |
| 混合铜精矿 | 1.78 | 19.49 | 44.83 | 87.68 | 32.60 |
| 硫精矿 | 1.77 | 0.25 | 48.65 | 1.12 | 35.11 |
| 尾矿 | 96.45 | 0.046 | 0.82 | 11.20 | 32.28 |
| 原矿 | 100.00 | 0.40 | 2.45 | 100.00 | 100.00 |
), ArticleFig(id=1241064298378753008, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241064282436202767, language=CN, label=表4, caption=
闭路试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Cu | S | Cu | S |
|---|
| 高品位铜精矿 | 1.60 | 20.16 | 45.89 | 81.49 | 29.99 |
| 低品位铜精矿 | 0.18 | 13.56 | 35.42 | 6.19 | 2.62 |
| 混合铜精矿 | 1.78 | 19.49 | 44.83 | 87.68 | 32.60 |
| 硫精矿 | 1.77 | 0.25 | 48.65 | 1.12 | 35.11 |
| 尾矿 | 96.45 | 0.046 | 0.82 | 11.20 | 32.28 |
| 原矿 | 100.00 | 0.40 | 2.45 | 100.00 | 100.00 |
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