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A molybdenum ore has the characteristics of low grade, difficult separation, various molybdenum minerals and some of them are located in inclusions. In view of the refractory characteristics of the molybdenum ore, the leaching mechanism was analyzed. At high temperature, the leaching test was carried out with high concentration sulfuric acid. The results show that high concentration sulfuric acid crash pyrite inclusions; increasing the amount of sulfuric acid, increasing the temperature, increasing oxidant dosage and reducing the ore size are beneficial to the Mo leaching rate. Under the conditions of particle size -0.15 mm (accounting for 75%), sulfuric acid dosage 20%, MnO2 dosage 2%, leaching temperature 90 ℃, leaching time 3 h, the leaching rate of molybdenum increases from 30%~40% of conventional stirring leaching to 72%. The research results put forward some countermeasures for the exploitation and utilization of molybdenum ore resources, and made a breakthrough in molybdenum leaching effect.

, authors=Gengyu LIANG, Shaohui KANG, Jin MENG, Hongming WANG, Jianfei YANG, Cuilian WU, authorsList=Gengyu LIANG, Shaohui KANG, Jin MENG, Hongming WANG, Jianfei YANG, Cuilian WU, authorCompany=null, correspAuthors=null, 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=1320359617113215013, articleId=1320359616660230179, tenantId=1146029695717560320, journalId=1146123346816638986, language=CN, title=某难处理钼矿浸出工艺研究, columnId=1175805041991631542, journalTitle=铀矿冶, columnName=开采·选冶, runingTitle=null, highlight=null, articleAbstract=

某钼矿石具有品位低、分选难、钼矿物种类多且部分位于包裹体中的特点。针对该钼矿的难处理特性,分析了难浸机理,并在高温下使用高浓度硫酸进行了浸出试验研究。结果表明:高浓度硫酸能破解黄铁矿包裹体;提升硫酸用量、升高温度、增加氧化剂用量、减小矿石粒度均有利于钼的浸出。在矿石粒度-0.15 mm(占比75%)、硫酸用量20%、MnO2用量2%、浸出温度90 ℃、浸出时间3 h条件下,钼的浸出率由常规搅拌浸出的30%~40%提高至72%。研究结果为该钼矿资源的开发利用提出了针对性的解决措施,使钼的浸出效果取得了突破。

, authors=梁耕宇, 康绍辉, 孟晋, 王洪明, 杨剑飞, 武翠莲, authorsList=梁耕宇, 康绍辉, 孟晋, 王洪明, 杨剑飞, 武翠莲, authorCompany=null, correspAuthors=null, authorNote=

梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

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梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

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梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

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某难处理钼矿浸出工艺研究
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梁耕宇 , 康绍辉 , 孟晋 , 王洪明 , 杨剑飞 , 武翠莲
铀矿冶 | 开采·选冶 2023,42(3): 24-28
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铀矿冶 |开采·选冶 2023 , 42 (3) : 24 -28
某难处理钼矿浸出工艺研究
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梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

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梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

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梁耕宇, 康绍辉, 孟晋, 王洪明, 杨剑飞, 武翠莲
作者信息
  • 核工业北京化工冶金研究院,北京 101149
作者简介:

梁耕宇(1996—),男,广西柳州人,硕士,助理工程师,主要从事铀水冶、铀纯化研究。

Study on Leaching Technology of a Refractory Molybdenum Ore
Gengyu LIANG, Shaohui KANG, Jin MENG, Hongming WANG, Jianfei YANG, Cuilian WU
Affiliations
  • Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
出版时间: 2023-08-20 doi: 10.13426/j.cnki.yky.2022.12.01
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某钼矿石具有品位低、分选难、钼矿物种类多且部分位于包裹体中的特点。针对该钼矿的难处理特性,分析了难浸机理,并在高温下使用高浓度硫酸进行了浸出试验研究。结果表明:高浓度硫酸能破解黄铁矿包裹体;提升硫酸用量、升高温度、增加氧化剂用量、减小矿石粒度均有利于钼的浸出。在矿石粒度-0.15 mm(占比75%)、硫酸用量20%、MnO2用量2%、浸出温度90 ℃、浸出时间3 h条件下,钼的浸出率由常规搅拌浸出的30%~40%提高至72%。研究结果为该钼矿资源的开发利用提出了针对性的解决措施,使钼的浸出效果取得了突破。

包裹  /  钼矿  /  强化浸出  /  氧化剂

A molybdenum ore has the characteristics of low grade, difficult separation, various molybdenum minerals and some of them are located in inclusions. In view of the refractory characteristics of the molybdenum ore, the leaching mechanism was analyzed. At high temperature, the leaching test was carried out with high concentration sulfuric acid. The results show that high concentration sulfuric acid crash pyrite inclusions; increasing the amount of sulfuric acid, increasing the temperature, increasing oxidant dosage and reducing the ore size are beneficial to the Mo leaching rate. Under the conditions of particle size -0.15 mm (accounting for 75%), sulfuric acid dosage 20%, MnO2 dosage 2%, leaching temperature 90 ℃, leaching time 3 h, the leaching rate of molybdenum increases from 30%~40% of conventional stirring leaching to 72%. The research results put forward some countermeasures for the exploitation and utilization of molybdenum ore resources, and made a breakthrough in molybdenum leaching effect.

inclusion  /  molybdenum ore  /  enhanced leaching  /  oxidant
梁耕宇, 康绍辉, 孟晋, 王洪明, 杨剑飞, 武翠莲. 某难处理钼矿浸出工艺研究. 铀矿冶, 2023 , 42 (3) : 24 -28 . DOI: 10.13426/j.cnki.yky.2022.12.01
Gengyu LIANG, Shaohui KANG, Jin MENG, Hongming WANG, Jianfei YANG, Cuilian WU. Study on Leaching Technology of a Refractory Molybdenum Ore[J]. Uranium Mining and Metallurgy, 2023 , 42 (3) : 24 -28 . DOI: 10.13426/j.cnki.yky.2022.12.01
  • 中核集团青年英才项目(A101-6)
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2023年第42卷第3期
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doi: 10.13426/j.cnki.yky.2022.12.01
  • 接收时间:2022-12-02
  • 首发时间:2026-10-23
  • 出版时间:2023-08-20
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  • 收稿日期:2022-12-02
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中核集团青年英才项目(A101-6)
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    核工业北京化工冶金研究院,北京 101149
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