Article(id=1236327871682245048, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236327863171993957, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.02.025, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1662134400000, receivedDateStr=2022-09-03, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772693134469, onlineDateStr=2026-03-05, pubDate=1680278400000, pubDateStr=2023-04-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772693134469, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772693134469, creator=13701087609, updateTime=1772693134469, updator=13701087609, issue=Issue{id=1236327863171993957, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='2', pageStart='1', pageEnd='170', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772693132441, creator=13701087609, updateTime=1772693403732, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236329001107640372, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236327863171993957, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236329001107640373, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236327863171993957, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=109, endPage=113, ext={EN=ArticleExt(id=1236327872131035594, articleId=1236327871682245048, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Hydrochloric Acid Leaching Process of Rare Earth Polishing Powder Waste, columnId=1236276106727321817, journalTitle=Mining and Metallurgical Engineering, columnName=METALLURGY, runingTitle=null, highlight=null, articleAbstract=

A hydrochloric acid leaching process was adopted to recover rare earth from rare earth polishing powder waste. The effects of hydrochloric acid concentration, leaching temperature, leaching time and liquid-solid ratio on the leaching rates of rare earth and main impurity Al2O3 were investigated, and the leaching mechanism was also discussed. It is found that the optimal conditions for single-stage leaching with HCl system are as follows: HCl concentration of 8 mol/L, leaching temperature of 80 ℃, leaching time of 3 h, and liquid-solid ratio of 4∶1. Under such conditions, the leaching rates of rare earth and Al2O3 are 90.81% and 43.68%, respectively.Based on the comparison of results from single-stage leaching, two-stage leaching and three-stage countercurrent leaching, it is shown that the leaching rate of rare earth by three-stage countercurrent leaching can be up to 98.38%. An increased amount of rare earth in the leaching solution is beneficial to the extraction and recovery of rare earth elements in the next step, thus greatly cutting recovery cost.

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采用盐酸直接浸出方式从稀土废抛光粉中回收稀土,考察了盐酸浓度、浸出温度、浸出时间和液固比对稀土和主要杂质元素Al2O3浸出率的影响,并探讨了浸出机理。结果表明,HCl体系单级浸出的优化条件为:HCl浓度8 mol/L、浸出温度80 ℃、浸出时间3 h、液固比4∶1,此时稀土元素浸出率为90.81%,Al2O3浸出率为43.68%。对比了单级浸出、二级浸出和三级逆流浸出效果,证实三级逆流浸出时稀土浸出率高达98.38%,浸出液中稀土总量增加,有利于稀土元素的下一步萃取回收,大大降低了回收成本。

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江名喜(1969-),男,湖南株洲人,博士,高级工程师,主要从事纳米粉体的制备及有色金属废料回收。
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吴希桃(1984—),女,湖南涟源人,硕士,高级工程师,研究方向为稀土资源回收。

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吴希桃(1984—),女,湖南涟源人,硕士,高级工程师,研究方向为稀土资源回收。

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吴希桃(1984—),女,湖南涟源人,硕士,高级工程师,研究方向为稀土资源回收。

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废稀土抛光粉盐酸浸出过程研究
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吴希桃 1, 2 , 张洁 1 , 吴海国 1, 2 , 谢圣中 1, 2 , 杨庆山 1, 2 , 江名喜 1, 2
矿冶工程杂志 | 冶金 2023,43(2): 109-113
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矿冶工程杂志 | 冶金 2023, 43(2): 109-113
废稀土抛光粉盐酸浸出过程研究
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吴希桃1, 2, 张洁1, 吴海国1, 2, 谢圣中1, 2, 杨庆山1, 2, 江名喜1, 2
作者信息
  • 1.湖南有色金属职业技术学院,湖南 株洲 412006
  • 2.湖南省矿区环境综合治理工程技术研究中心,湖南 长沙 410126
  • 吴希桃(1984—),女,湖南涟源人,硕士,高级工程师,研究方向为稀土资源回收。

通讯作者:

江名喜(1969-),男,湖南株洲人,博士,高级工程师,主要从事纳米粉体的制备及有色金属废料回收。
Hydrochloric Acid Leaching Process of Rare Earth Polishing Powder Waste
Xitao WU1, 2, Jie ZHANG1, Haiguo WU1, 2, Shengzhong XIE1, 2, Qingshan YANG1, 2, Mingxi JIANG1, 2
Affiliations
  • 1.Hunan Nonferrous Metals Vocational and Technical College, Zhuzhou 412006, Hunan, China
  • 2.Hunan Province Engineering Technology Research Center for Comprehensive Environmental Management of Mining Area, Changsha 410126, Hunan, China
出版时间: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.025
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采用盐酸直接浸出方式从稀土废抛光粉中回收稀土,考察了盐酸浓度、浸出温度、浸出时间和液固比对稀土和主要杂质元素Al2O3浸出率的影响,并探讨了浸出机理。结果表明,HCl体系单级浸出的优化条件为:HCl浓度8 mol/L、浸出温度80 ℃、浸出时间3 h、液固比4∶1,此时稀土元素浸出率为90.81%,Al2O3浸出率为43.68%。对比了单级浸出、二级浸出和三级逆流浸出效果,证实三级逆流浸出时稀土浸出率高达98.38%,浸出液中稀土总量增加,有利于稀土元素的下一步萃取回收,大大降低了回收成本。

废稀土抛光粉  /  预处理  /  三级逆流浸出  /  机理分析  /  稀土  /  盐酸浸出

A hydrochloric acid leaching process was adopted to recover rare earth from rare earth polishing powder waste. The effects of hydrochloric acid concentration, leaching temperature, leaching time and liquid-solid ratio on the leaching rates of rare earth and main impurity Al2O3 were investigated, and the leaching mechanism was also discussed. It is found that the optimal conditions for single-stage leaching with HCl system are as follows: HCl concentration of 8 mol/L, leaching temperature of 80 ℃, leaching time of 3 h, and liquid-solid ratio of 4∶1. Under such conditions, the leaching rates of rare earth and Al2O3 are 90.81% and 43.68%, respectively.Based on the comparison of results from single-stage leaching, two-stage leaching and three-stage countercurrent leaching, it is shown that the leaching rate of rare earth by three-stage countercurrent leaching can be up to 98.38%. An increased amount of rare earth in the leaching solution is beneficial to the extraction and recovery of rare earth elements in the next step, thus greatly cutting recovery cost.

rare earth polishing powder waste  /  pretreatment  /  three-stage countercurrent leaching  /  mechanism analysis  /  rare earth  /  hydrochloric acid leaching
吴希桃, 张洁, 吴海国, 谢圣中, 杨庆山, 江名喜. 废稀土抛光粉盐酸浸出过程研究. 矿冶工程杂志, 2023 , 43 (2) : 109 -113 . DOI: 10.3969/j.issn.0253-6099.2023.02.025
Xitao WU, Jie ZHANG, Haiguo WU, Shengzhong XIE, Qingshan YANG, Mingxi JIANG. Hydrochloric Acid Leaching Process of Rare Earth Polishing Powder Waste[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 109 -113 . DOI: 10.3969/j.issn.0253-6099.2023.02.025
  • 湖南省矿区环境综合治理工程技术研究中心项目(2022TP2068)
  • 湖南省教育厅科学研究项目(22B1048)
2023年第43卷第2期
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doi: 10.3969/j.issn.0253-6099.2023.02.025
  • 接收时间:2022-09-03
  • 首发时间:2026-03-05
  • 出版时间:2023-04-01
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  • 收稿日期:2022-09-03
基金
湖南省矿区环境综合治理工程技术研究中心项目(2022TP2068)
湖南省教育厅科学研究项目(22B1048)
作者信息
    1.湖南有色金属职业技术学院,湖南 株洲 412006
    2.湖南省矿区环境综合治理工程技术研究中心,湖南 长沙 410126

通讯作者:

江名喜(1969-),男,湖南株洲人,博士,高级工程师,主要从事纳米粉体的制备及有色金属废料回收。
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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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