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The hydrometallurgical process route of "alkaline conversion-acidic lead extraction-sulfuric acid lead separation" was studied for the separation and enrichment of lead from copper smelting slag. The principle of efficient transformation of lead in slag was mainly explored, and the effects of various factors in each process on the transformation, leaching and precipitation of lead were investigated. The optimal experimental conditions for each process were determined. The results show that by adding NaOH, the higher free alkalinity will cause PbSO4 in the slag to enter the liquid phase in the form of plumbous acid, increasing lead loss and reducing recovery rate. In the acidic extraction stage, the reaction time and free acidity have a significant impact on the leaching rate. Under the conditions of free alkalinity of 15 g/L, liquid volume to solid mass ratio of 5/1, and temperature of 30 ℃, the alkaline transformation reaction is carried out for 3 h. Then, under the conditions of free acidity of 20 g/L, liquid volume to solid mass ratio of 5/1, and atemperature of 30 ℃, the slag are leached with nitric acid for 2 h. Finally, lead is precipitated with sulfuric acid under the conditions of a sulfuric acid coefficient of 0.8 to 1.0 and temperature of 30 ℃. The conversion rate and leaching rate of Pb in the slag can both reach over 95%. The process can efficiently separate and enrich lead from copper smelting slag, and the effect is good.

, authors=Taili XIE1, Xiaolong LI2, Zhaorong LUO1, authorsList=Taili XIE, Xiaolong LI, Zhaorong LUO, authorCompany=null, correspAuthors=Xiaolong LI, 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=1311349786045939916, articleId=1311349785433571530, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=铜冶炼尾渣中铅的湿法分离富集研究, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

研究了采用“碱性转型—硝酸浸出—硫酸沉淀”的湿法工艺路线从铜冶炼尾渣中分离富集铅,重点探讨了尾渣中铅的高效转型原理,考察了各工序相关因素对铅转型、浸出、沉淀的影响,并确定了各工序的最佳试验条件。结果表明:加入NaOH,游离碱度升高,会使尾渣中的PbSO4以铅酸根形式进入液相中,增加铅损失,降低回收率;硝酸浸出过程中,反应时间与游离酸度对铅浸出率影响较大;在游离碱度15 g/L、液固体积质量比5/1、温度30 ℃下碱性转型反应3 h,再在游离酸度20 g/L、液固体积质量比5/1、温度30 ℃下用硝酸浸出2 h,最后在硫酸系数为0.8~1.0、温度30 ℃条件下用硫酸沉淀铅,尾渣中铅转化率与浸出率均可达95%以上。该工艺能实现铜冶炼尾渣中铅的高效分离富集,效果较好。

, authors=谢太李1, 李小龙2, 罗钊荣1, authorsList=谢太李, 李小龙, 罗钊荣, authorCompany=null, correspAuthors=李小龙, authorNote=

谢太李(1984—),男,本科,高级工程师,主要研究方向为稀贵稀散金属提取。

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李小龙 (1992—),男,博士,工程师,主要研究方向为有色金属冶金。E-mail: 。
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谢太李(1984—),男,本科,高级工程师,主要研究方向为稀贵稀散金属提取。

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谢太李(1984—),男,本科,高级工程师,主要研究方向为稀贵稀散金属提取。

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铜冶炼尾渣中铅的湿法分离富集研究
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谢太李 1 , 李小龙 2 , 罗钊荣 1
湿法冶金 | 试验研究 2025,44(6): 791-797
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湿法冶金 |试验研究 2025 , 44 (6) : 791 -797
铜冶炼尾渣中铅的湿法分离富集研究
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谢太李1, 李小龙2 , 罗钊荣1
作者信息
  • 1.江西铜业集团有限公司 贵溪冶炼厂,江西 贵溪 335424
  • 2.江西铜业技术研究院有限公司,江西 南昌 330096
通讯作者:
李小龙 (1992—),男,博士,工程师,主要研究方向为有色金属冶金。E-mail: 。
作者简介:

谢太李(1984—),男,本科,高级工程师,主要研究方向为稀贵稀散金属提取。

Hydrometallurgical Separation and Enrichment of Lead from Copper Smelting Slag
Taili XIE1, Xiaolong LI2 , Zhaorong LUO1
Affiliations
  • 1.Guixi Smelter, Jiangxi Copper Corporation Limited, Guixi 335424, China
  • 2.Jiangxi Copper Technology Institute Co., Ltd., Nanchang 330096, China
出版时间: 2025-12-20 doi: 10.13355/j.cnki.sfyj.2025.06.011
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研究了采用“碱性转型—硝酸浸出—硫酸沉淀”的湿法工艺路线从铜冶炼尾渣中分离富集铅,重点探讨了尾渣中铅的高效转型原理,考察了各工序相关因素对铅转型、浸出、沉淀的影响,并确定了各工序的最佳试验条件。结果表明:加入NaOH,游离碱度升高,会使尾渣中的PbSO4以铅酸根形式进入液相中,增加铅损失,降低回收率;硝酸浸出过程中,反应时间与游离酸度对铅浸出率影响较大;在游离碱度15 g/L、液固体积质量比5/1、温度30 ℃下碱性转型反应3 h,再在游离酸度20 g/L、液固体积质量比5/1、温度30 ℃下用硝酸浸出2 h,最后在硫酸系数为0.8~1.0、温度30 ℃条件下用硫酸沉淀铅,尾渣中铅转化率与浸出率均可达95%以上。该工艺能实现铜冶炼尾渣中铅的高效分离富集,效果较好。

铜冶炼尾渣  /  铅  /  转型  /  浸出  /  沉淀  /  富集

The hydrometallurgical process route of "alkaline conversion-acidic lead extraction-sulfuric acid lead separation" was studied for the separation and enrichment of lead from copper smelting slag. The principle of efficient transformation of lead in slag was mainly explored, and the effects of various factors in each process on the transformation, leaching and precipitation of lead were investigated. The optimal experimental conditions for each process were determined. The results show that by adding NaOH, the higher free alkalinity will cause PbSO4 in the slag to enter the liquid phase in the form of plumbous acid, increasing lead loss and reducing recovery rate. In the acidic extraction stage, the reaction time and free acidity have a significant impact on the leaching rate. Under the conditions of free alkalinity of 15 g/L, liquid volume to solid mass ratio of 5/1, and temperature of 30 ℃, the alkaline transformation reaction is carried out for 3 h. Then, under the conditions of free acidity of 20 g/L, liquid volume to solid mass ratio of 5/1, and atemperature of 30 ℃, the slag are leached with nitric acid for 2 h. Finally, lead is precipitated with sulfuric acid under the conditions of a sulfuric acid coefficient of 0.8 to 1.0 and temperature of 30 ℃. The conversion rate and leaching rate of Pb in the slag can both reach over 95%. The process can efficiently separate and enrich lead from copper smelting slag, and the effect is good.

copper smelting slag  /  lead  /  conversion  /  leaching  /  precipitatation  /  enrichment
谢太李, 李小龙, 罗钊荣. 铜冶炼尾渣中铅的湿法分离富集研究. 湿法冶金, 2025 , 44 (6) : 791 -797 . DOI: 10.13355/j.cnki.sfyj.2025.06.011
Taili XIE, Xiaolong LI, Zhaorong LUO. Hydrometallurgical Separation and Enrichment of Lead from Copper Smelting Slag[J]. Hydrometallurgy of China, 2025 , 44 (6) : 791 -797 . DOI: 10.13355/j.cnki.sfyj.2025.06.011
  • 国家重点研发计划(2023YFC2907903)
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doi: 10.13355/j.cnki.sfyj.2025.06.011
  • 接收时间:2025-03-26
  • 首发时间:2026-09-28
  • 出版时间:2025-12-20
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  • 收稿日期:2025-03-26
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国家重点研发计划(2023YFC2907903)
作者信息
    1.江西铜业集团有限公司 贵溪冶炼厂,江西 贵溪 335424
    2.江西铜业技术研究院有限公司,江西 南昌 330096

通讯作者:

李小龙 (1992—),男,博士,工程师,主要研究方向为有色金属冶金。E-mail: 。
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2种不同金属材料的力学参数
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genus
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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
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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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