Article(id=1305177739749778113, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305177706027578094, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2026.04.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1774281600000, receivedDateStr=2026-03-24, revisedDate=1777219200000, revisedDateStr=2026-04-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1789108222186, onlineDateStr=2026-09-11, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789108222186, onlineIssueDateStr=2026-09-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789108222186, creator=13701087609, updateTime=1789108222186, updator=13701087609, issue=Issue{id=1305177706027578094, tenantId=1146029695717560320, journalId=1146120122248306696, year='2026', volume='45', issue='4', pageStart='455', pageEnd='612', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1789108214146, creator='13701087609', updateTime=1789108456673, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305178723335037263, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305177706027578094, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305178723335037264, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305177706027578094, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=530, endPage=536, ext={EN=ArticleExt(id=1305177739930133186, articleId=1305177739749778113, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Exploration on Enrichment and Purification Technology of Associated Element Thorium in Bastnaesite, columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=

In view of the recovery and utilization of associated thorium resources and the control of radioactive pollution in the process of bastnaesite smelting, the migration and distribution characteristics of thorium elements in each link of smelting separation were systematically studied. After the pretreatment of bastnaesite by alkali decomposition, the leaching acidity was adjusted to 3-5 mol/L, and the thorium leaching rate was increased to 98%. Fe3+ in the feed solution was selectively removed by N235 extractant in advance, and then thorium was directional extracted by P507 extractant. The results showed that the saturated loading of thorium oxide in the diluted P507-sulfonated kerosene extraction system could reach 25 g/L. After oxalic acid back extraction, washing and burning at 1 000 ℃, the purity of thorium oxide in the final product reached 98.88%. The total yield of thorium is more than 96% for the raw material of bastnaesite containing 0.2% -0.3% thorium. The method is efficient and environmentally friendly, and has certain application potential in the release treatment of thorium-containing solid waste.

, authors=Jia YAO, Jinyong WANG, Xusheng FANG, Duqing CHEN, authorsList=Jia YAO, Jinyong WANG, Xusheng FANG, Duqing CHEN, authorCompany=null, correspAuthors=Duqing CHEN, 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=1305177740160819907, articleId=1305177739749778113, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=氟碳铈矿伴生元素钍的富集与纯化工艺探索, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

针对氟碳铈矿冶炼过程中伴生钍资源的回收利用及放射性污染控制问题,系统研究了钍元素在冶炼分离各环节的迁移规律与分布特征。提出了通过碱分解预处理氟碳铈矿后,将浸出酸度调至3~5 mol/L,使钍浸出率提升至98%;采用N235萃取剂预先选择性脱除料液中的Fe3+,再利用P507萃取剂定向萃取钍。结果表明,稀释的P507-磺化煤油萃取体系对氧化钍的饱和负载量可达25 g/L,经草酸反萃取、洗涤及 1 000 ℃灼烧后,最终产品中氧化钍纯度达98.88%;对于含钍0.2%~0.3%的氟碳铈矿原料,钍总收率超过96%。该法高效、环保,在含钍固废的脱放处理方面具有一定推广应用潜力。

, authors=姚佳, 王金镛, 方旭升, 陈读青, authorsList=姚佳, 王金镛, 方旭升, 陈读青, authorCompany=null, correspAuthors=陈读青, authorNote=

姚佳(1988—),男,本科,工程师,主要研究方向为稀土湿法冶金。

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陈读青(1974—),男,本科,高级工程师,主要研究方向为稀土湿法冶金。E-mail:
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姚佳(1988—),男,本科,工程师,主要研究方向为稀土湿法冶金。

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姚佳(1988—),男,本科,工程师,主要研究方向为稀土湿法冶金。

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氟碳铈矿伴生元素钍的富集与纯化工艺探索
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姚佳 , 王金镛 , 方旭升 , 陈读青
湿法冶金 | 试验研究 2026,45(4): 530-536
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湿法冶金 |试验研究 2026 , 45 (4) : 530 -536
氟碳铈矿伴生元素钍的富集与纯化工艺探索
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姚佳, 王金镛, 方旭升, 陈读青
作者信息
  • 乐山盛和稀土有限公司,四川 乐山 614802
通讯作者:
陈读青(1974—),男,本科,高级工程师,主要研究方向为稀土湿法冶金。E-mail:
作者简介:

姚佳(1988—),男,本科,工程师,主要研究方向为稀土湿法冶金。

Exploration on Enrichment and Purification Technology of Associated Element Thorium in Bastnaesite
Jia YAO, Jinyong WANG, Xusheng FANG, Duqing CHEN
Affiliations
  • Leshan Shenghe Rare Earths Co., Ltd., Leshan 614802, China
出版时间: 2026-08-20 doi: 10.13355/j.cnki.sfyj.2026.04.009
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针对氟碳铈矿冶炼过程中伴生钍资源的回收利用及放射性污染控制问题,系统研究了钍元素在冶炼分离各环节的迁移规律与分布特征。提出了通过碱分解预处理氟碳铈矿后,将浸出酸度调至3~5 mol/L,使钍浸出率提升至98%;采用N235萃取剂预先选择性脱除料液中的Fe3+,再利用P507萃取剂定向萃取钍。结果表明,稀释的P507-磺化煤油萃取体系对氧化钍的饱和负载量可达25 g/L,经草酸反萃取、洗涤及 1 000 ℃灼烧后,最终产品中氧化钍纯度达98.88%;对于含钍0.2%~0.3%的氟碳铈矿原料,钍总收率超过96%。该法高效、环保,在含钍固废的脱放处理方面具有一定推广应用潜力。

氟碳铈矿  /  氧化钍  /  N235  /  P507  /  萃取  /  分离

In view of the recovery and utilization of associated thorium resources and the control of radioactive pollution in the process of bastnaesite smelting, the migration and distribution characteristics of thorium elements in each link of smelting separation were systematically studied. After the pretreatment of bastnaesite by alkali decomposition, the leaching acidity was adjusted to 3-5 mol/L, and the thorium leaching rate was increased to 98%. Fe3+ in the feed solution was selectively removed by N235 extractant in advance, and then thorium was directional extracted by P507 extractant. The results showed that the saturated loading of thorium oxide in the diluted P507-sulfonated kerosene extraction system could reach 25 g/L. After oxalic acid back extraction, washing and burning at 1 000 ℃, the purity of thorium oxide in the final product reached 98.88%. The total yield of thorium is more than 96% for the raw material of bastnaesite containing 0.2% -0.3% thorium. The method is efficient and environmentally friendly, and has certain application potential in the release treatment of thorium-containing solid waste.

bastnaesite  /  thorium oxide  /  N235  /  P507  /  extraction  /  separation
姚佳, 王金镛, 方旭升, 陈读青. 氟碳铈矿伴生元素钍的富集与纯化工艺探索. 湿法冶金, 2026 , 45 (4) : 530 -536 . DOI: 10.13355/j.cnki.sfyj.2026.04.009
Jia YAO, Jinyong WANG, Xusheng FANG, Duqing CHEN. Exploration on Enrichment and Purification Technology of Associated Element Thorium in Bastnaesite[J]. Hydrometallurgy of China, 2026 , 45 (4) : 530 -536 . DOI: 10.13355/j.cnki.sfyj.2026.04.009
  • 四川省财政科技计划专项资金项目(2025ZDZX0020)
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2026年第45卷第4期
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doi: 10.13355/j.cnki.sfyj.2026.04.009
  • 接收时间:2026-03-24
  • 首发时间:2026-09-11
  • 出版时间:2026-08-20
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  • 收稿日期:2026-03-24
  • 修回日期:2026-04-27
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四川省财政科技计划专项资金项目(2025ZDZX0020)
作者信息
    乐山盛和稀土有限公司,四川 乐山 614802

通讯作者:

陈读青(1974—),男,本科,高级工程师,主要研究方向为稀土湿法冶金。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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