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Due to its late discovery, wide distribution, large reserves, complex composition, and low grade, the comprehensive development and utilization of clay type lithium mines still lack systematic research. A systematic study was conducted on the optimization of enhanced leaching process parameters for clay type lithium ore in Liuzhi Special District, Liupanshui City, Guizhou Province. The effects of roasting process conditions such as roasting temperature and time, as well as the effects of leaching process conditions such as leaching agent hydrochloric acid concentration, leaching temperature and time, stirring speed, and liquid volume to solid mass ratio on the experimental results were investigated. The results show that roasting can destroy the crystal lattice of minerals such as kaolinite, superphosphate, diopside, and lithium chlorite in clay type lithium ores, which is beneficial for the sufficient contact between lithium containing phases and leaching agents during subsequent leaching processes, thereby improving their leaching efficiency;After high-temperature roasting at 600 ℃ for 90 min, the clay type lithium ore was subjected to optimal leaching conditions of 60 min, leaching temperature of 80 ℃, hydrochloric acid concentration of 4 mol/L, stirring speed of 400 r/min, and liquid volume to solid mass ratio of 6∶1. The lithium leaching rate can reach 93.48% and the leaching effect is good. The method does not require any additives during the calcination process, which can reduce pollution and lower costs. It has certain promotion and application value.

, authors=Shan ZHU, Yanxia ZHU, Chenhu ZHANG, authorsList=Shan ZHU, Yanxia ZHU, Chenhu ZHANG, 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=1311350741911036417, articleId=1311350741361582591, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=低品位黏土型锂矿的焙烧—浸出工艺优化研究, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

黏土型锂矿因发现晚、分布广、储量大、成分复杂、品位低,导致其综合开发利用尚缺乏系统性研究。以贵州省六盘水市六枝特区黏土型锂矿为对象,系统研究优化了其焙烧—浸出工艺参数,考察了焙烧温度和时间等焙烧工艺条件,以及浸出剂盐酸浓度、浸出温度和时间、搅拌速度、液固体积质量比等浸出工艺条件对试验结果的影响。结果表明:焙烧能破坏黏土型锂矿中的高岭石、透磷钙石、地开石、锂绿泥石等矿物晶格,有利于后续浸出过程中含锂物相与浸出剂充分接触,从而提升其浸出效果;黏土型锂矿在600 ℃下焙烧90 min,再在浸出温度80 ℃、盐酸浓度4 mol/L、搅拌速度400 r/ min、液固体积质量比6∶1的最佳条件下浸出60 min,锂浸出率可达93.48%,浸出效果较好。该法在焙烧过程中无需添加剂,可减少污染、降低成本,具有一定推广利用价值。

, authors=朱山, 朱艳霞, 张谌虎, authorsList=朱山, 朱艳霞, 张谌虎, authorCompany=null, correspAuthors=null, authorNote=

朱山(1989—),男,博士,教授,主要研究方向为有色金属湿法冶金。

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朱山(1989—),男,博士,教授,主要研究方向为有色金属湿法冶金。

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低品位黏土型锂矿的焙烧—浸出工艺优化研究
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朱山 , 朱艳霞 , 张谌虎
湿法冶金 | 试验研究 2026,45(1): 39-44
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湿法冶金 |试验研究 2026 , 45 (1) : 39 -44
低品位黏土型锂矿的焙烧—浸出工艺优化研究
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朱山, 朱艳霞, 张谌虎
作者信息
  • 六盘水师范学院 化学与材料工程学院,贵州 六盘水 553000
作者简介:

朱山(1989—),男,博士,教授,主要研究方向为有色金属湿法冶金。

Optimization of Roasting-Leaching Process for Low-grade Clay-type Lithium Ore
Shan ZHU, Yanxia ZHU, Chenhu ZHANG
Affiliations
  • School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui 553000, China
出版时间: 2026-02-20 doi: 10.13355/j.cnki.sfyj.2026.01.006
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黏土型锂矿因发现晚、分布广、储量大、成分复杂、品位低,导致其综合开发利用尚缺乏系统性研究。以贵州省六盘水市六枝特区黏土型锂矿为对象,系统研究优化了其焙烧—浸出工艺参数,考察了焙烧温度和时间等焙烧工艺条件,以及浸出剂盐酸浓度、浸出温度和时间、搅拌速度、液固体积质量比等浸出工艺条件对试验结果的影响。结果表明:焙烧能破坏黏土型锂矿中的高岭石、透磷钙石、地开石、锂绿泥石等矿物晶格,有利于后续浸出过程中含锂物相与浸出剂充分接触,从而提升其浸出效果;黏土型锂矿在600 ℃下焙烧90 min,再在浸出温度80 ℃、盐酸浓度4 mol/L、搅拌速度400 r/ min、液固体积质量比6∶1的最佳条件下浸出60 min,锂浸出率可达93.48%,浸出效果较好。该法在焙烧过程中无需添加剂,可减少污染、降低成本,具有一定推广利用价值。

黏土型锂矿  /  低品位  /  浸出  /  锂  /  焙烧  /  工艺优化

Due to its late discovery, wide distribution, large reserves, complex composition, and low grade, the comprehensive development and utilization of clay type lithium mines still lack systematic research. A systematic study was conducted on the optimization of enhanced leaching process parameters for clay type lithium ore in Liuzhi Special District, Liupanshui City, Guizhou Province. The effects of roasting process conditions such as roasting temperature and time, as well as the effects of leaching process conditions such as leaching agent hydrochloric acid concentration, leaching temperature and time, stirring speed, and liquid volume to solid mass ratio on the experimental results were investigated. The results show that roasting can destroy the crystal lattice of minerals such as kaolinite, superphosphate, diopside, and lithium chlorite in clay type lithium ores, which is beneficial for the sufficient contact between lithium containing phases and leaching agents during subsequent leaching processes, thereby improving their leaching efficiency;After high-temperature roasting at 600 ℃ for 90 min, the clay type lithium ore was subjected to optimal leaching conditions of 60 min, leaching temperature of 80 ℃, hydrochloric acid concentration of 4 mol/L, stirring speed of 400 r/min, and liquid volume to solid mass ratio of 6∶1. The lithium leaching rate can reach 93.48% and the leaching effect is good. The method does not require any additives during the calcination process, which can reduce pollution and lower costs. It has certain promotion and application value.

clay-type lithium ore  /  low-grade  /  leaching  /  lithium  /  roasting  /  process optimization
朱山, 朱艳霞, 张谌虎. 低品位黏土型锂矿的焙烧—浸出工艺优化研究. 湿法冶金, 2026 , 45 (1) : 39 -44 . DOI: 10.13355/j.cnki.sfyj.2026.01.006
Shan ZHU, Yanxia ZHU, Chenhu ZHANG. Optimization of Roasting-Leaching Process for Low-grade Clay-type Lithium Ore[J]. Hydrometallurgy of China, 2026 , 45 (1) : 39 -44 . DOI: 10.13355/j.cnki.sfyj.2026.01.006
  • 六盘水师范学院科研专项项目(Lpssyzxxm202302)
  • 六盘水师范学院培育项目(LPSSY2023KJZDPY05)
  • 六盘水市科技局项目(52020-2023-0-2-17)
  • 贵州省教育厅自然科学研究重点领域项目(黔教合KY字[2020]049)
  • 贵州省一流专业项目(GZSylzy202103)
  • 贵州省教育厅项目(黔教技[2023]087号)
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doi: 10.13355/j.cnki.sfyj.2026.01.006
  • 接收时间:2025-09-19
  • 首发时间:2026-09-28
  • 出版时间:2026-02-20
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  • 收稿日期:2025-09-19
  • 修回日期:2025-10-07
基金
六盘水师范学院科研专项项目(Lpssyzxxm202302)
六盘水师范学院培育项目(LPSSY2023KJZDPY05)
六盘水市科技局项目(52020-2023-0-2-17)
贵州省教育厅自然科学研究重点领域项目(黔教合KY字[2020]049)
贵州省一流专业项目(GZSylzy202103)
贵州省教育厅项目(黔教技[2023]087号)
作者信息
    六盘水师范学院 化学与材料工程学院,贵州 六盘水 553000
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
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
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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