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Process mineralogical analysis indicates that the valuable minerals in a low-grade lead-zinc sulfide ore in southern China are galena, sphalerite and associated silver minerals, while other metal sulfides are predominantly pyrrhotite and pyrite. To achieve the efficient comprehensive utilization of lead, zinc and silver resources, systematic flotation tests were conducted on the ore. Through conditional tests on grinding fineness, lead flotation and zinc flotation, the suitable grinding conditions and reagent regime were determined. A preferential lead-zinc flotation flowsheet was adopted, in which both the lead and zinc flotation circuits consist of one roughing, two cleanings and one scavenging stage. Closed-circuit test results demonstrate that at a grinding fineness of 56.6% passing -0.074 mm, a lead concentrate with a Pb grade of 65.08% and a recovery of 91.32%, alongside an Ag grade of 1 323.80 g/t and a recovery of 79.28% was obtained. Additionally, a zinc concentrates with a Zn grade of 41.70% and a recovery of 85.96% was produced. This process realizes the effective recovery of valuable elements from the low-grade Pb-Zn-Ag sulfide ore, providing a reference for the development and utilization of similar resources.

, authors=Hexin Lian^{1, 2}, Song Zou¹, authorsList=Hexin Lian, Song Zou, authorCompany=null, correspAuthors=Song Zou, 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=1321893381094097159, articleId=1321893378963390725, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=南方某低品位铅锌矿工艺矿物学分析与浮选试验研究, 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=

工艺矿物学分析表明，我国南方某低品位铅锌硫化矿中的有价矿物为方铅矿、闪锌矿和伴生的银矿物，其他金属硫化物以磁黄铁矿和黄铁矿为主。为实现铅、锌、银资源的高效综合利用，针对该矿石开展系统浮选试验，通过磨矿细度、铅浮选及锌浮选条件试验，确定了适宜的磨矿条件和药剂制度。采用铅锌优先浮选流程，铅、锌浮选均采用一次粗选、二次精选和一次扫选的流程结构。闭路试验结果表明，在磨矿细度为-0.074 mm占56.6%条件下，获得了铅品位为65.08%、铅回收率为91.32%、银品位为1 323.80 g/t、银回收率为79.28%的铅精矿，以及锌品位为41.70%、锌回收率为85.96%的锌精矿。该工艺实现了低品位铅锌银硫化矿中有价元素的有效回收，对同类资源的开发利用具有借鉴意义。

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^2.Jiangxi Piaotang Tungsten Industry Co., Ltd., Ganzhou, Jiangxi 341515, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321893381685494035, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893378963390725, authorId=1321893381513527567, language=CN, stringName=练和信, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=^1．江西理工大学 矿业工程学院，江西 赣州市　341000
^2．江西漂塘钨业有限公司，江西 赣州市　341515, bio={"content":"

练和信（1989—），男，江西赣州人，选矿工程师，主要从事选矿生产及研究工作。E-mail:1174122022@qq.com

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练和信（1989—），男，江西赣州人，选矿工程师，主要从事选矿生产及研究工作。E-mail:1174122022@qq.com

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