Article(id=1160637004145316311, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1148109990923072455, articleNumber=1009-261(2025)02-0151-07, orderNo=null, doi=10.13355/j.cnki.sfyj.2025.02.003, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1728921600000, receivedDateStr=2024-10-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1754647025380, onlineDateStr=2025-08-08, pubDate=1745769600000, pubDateStr=2025-04-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1754647025380, onlineIssueDateStr=2025-08-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1754647025380, creator=13701087609, updateTime=1754647025380, updator=13701087609, issue=Issue{id=1148109990923072455, tenantId=1146029695717560320, journalId=1146120122248306696, year='2025', volume='44', issue='2', pageStart='133', pageEnd='279', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1751660352687, creator=13701087609, updateTime=1758246043500, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1175732380301148501, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1148109990923072455, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1175732380301148502, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1148109990923072455, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=151, endPage=157, ext={EN=ArticleExt(id=1160637004380197337, articleId=1160637004145316311, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Combined Recovery Process of Rare Earth from NdFeB Waste and Polishing Powder Waste, columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=
In the process of recovering rare earth from NdFeB waste and polishing powder waste, there are problems such as large reagent consumption and high processing cost. In view of the above problems, using the reducibility of the iron in the NdFeB waste, a combined process was studied to recover rare earth from two kinds of waste. The results show that when NdFeB waste is dissolved with 6 mol/L hydrochloric acid and oxalic acid 1.2 times the mass of rare earth is added into the acid solution, the iron precipitation rate is 7.87%, and the rare earth precipitation rate can reach 96.51%. Adding 6 mol/L hydrochloric acid to the precipitated liquid is used to reduce and leach rare earth from the polishing powder waste. Under the conditions of solid mass to liquid volume ratio of 3 g/6 mL between the polishing powder waste and the precipitated liquid, the product ratio of hydrochloric acid to the precipitated liquid of 7/6, reaction temperature of 60 ℃, and reaction time of 30 min, the average leaching rate of rare earth in the polishing powder waste can reach 82.41%. The dissolved rare earth is precipitated by oxalic acid and calcined, and the total amount of rare earth oxides obtained is 98.04%. The process can realize the joint recovery of rare earth in the two kinds of waste, reduce the cost of rare earth waste treatment,and has a certain popularization and application value.
, 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, authorCompany=null, fund=null, authors=null, authorsList=Baowei MU, Li WANG, Shengli YONG, Hongxia LI, Jingjing GUO), CN=ArticleExt(id=1160637108013060585, articleId=1160637004145316311, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=钕铁硼废料和抛光粉废粉中稀土的联合回收工艺研究, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=从钕铁硼废料和抛光粉废粉中回收稀土时,存在试剂耗量大、处理成本高等问题。针对上述问题,利用钕铁硼废料中铁的还原性,研究了采用联合工艺回收2种废料中的稀土。结果表明:先用6 mol/L盐酸溶解钕铁硼废料,再向酸解液中加入稀土质量1.2倍的草酸,铁沉淀率为7.87%,而稀土沉淀率可达96.51%,稀土沉淀物经焙烧可得稀土总量为94.26%的氧化物;向沉淀后液中加入6 mol/L盐酸,用于从抛光粉废粉中还原浸出稀土,在抛光粉废粉与沉淀后液质量体积比为3
g/6 mL、盐酸与沉淀后液体积比为7/6、反应温度60 ℃、反应时间30 min条件下,抛光粉废粉中稀土平均浸出率可达82.41%,浸出的稀土经草酸沉淀、焙烧,所得氧化物的稀土总量为98.04%。该工艺可实现对2种废料中稀土的联合回收,显著降低稀土废料的处理成本,具有一定的推广应用价值。, correspAuthors=null, authorNote=null, correspAuthorsNote=
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牟保畏(1985—),男,硕士,讲师,主要研究方向为稀土湿法冶金。
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牟保畏(1985—),男,硕士,讲师,主要研究方向为稀土湿法冶金。
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牟保畏(1985—),男,硕士,讲师,主要研究方向为稀土湿法冶金。
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15(1):130-138., articleTitle=Research on simultaneous leaching and stepwise extraction of rare earth and iron from NdFeB sludge, refAbstract=null), Reference(id=1174443825314542064, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, doi=null, pmid=null, pmcid=null, year=2011, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[27], rfOrder=37, authorNames=李良才, journalName=稀土提取及分离, refType=null, unstructuredReference=李良才.
稀土提取及分离[M]. 赤峰: 内蒙古科学技术出版社,
2011:456., articleTitle=null, refAbstract=null)], funds=[Fund(id=1174443821908767177, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, awardId=2022MS02005, language=CN, fundingSource=内蒙古自然科学基金面上项目(2022MS02005), fundOrder=null, country=null), Fund(id=1174443822030401994, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, awardId=BSYKJ2023-ZY05, language=CN, fundingSource=包头师范学院科研项目(BSYKJ2023-ZY05), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1174443816997237135, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, xref=null, ext=[AuthorCompanyExt(id=1174443817001431440, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, companyId=1174443816997237135, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Department of Chemistry, Baotou Teachers' College, Baotou 014030, China), AuthorCompanyExt(id=1174443817009820049, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, companyId=1174443816997237135, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=包头师范学院 化学学院, 内蒙古 包头 014030)])], figs=[ArticleFig(id=1174443820323320245, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.1, caption=
XRD pattern of NdFeB waste, figureFileSmall=geTkhGqOlBtp53w793XP9A==, figureFileBig=5vo6j2CfkkuIqzZPXuaACg==, tableContent=null), ArticleFig(id=1174443820382040502, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图1, caption=
钕铁硼废料的XRD图谱, figureFileSmall=geTkhGqOlBtp53w793XP9A==, figureFileBig=5vo6j2CfkkuIqzZPXuaACg==, tableContent=null), ArticleFig(id=1174443820432372151, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.2, caption=
XRD pattern of polishing powder waste, figureFileSmall=ffI24ZUQp+QTwxKUWKYSQQ==, figureFileBig=+Hdnf5FAzHOO/ceM8+2kvg==, tableContent=null), ArticleFig(id=1174443820537229752, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图2, caption=
抛光粉废粉的XRD图谱, figureFileSmall=ffI24ZUQp+QTwxKUWKYSQQ==, figureFileBig=+Hdnf5FAzHOO/ceM8+2kvg==, tableContent=null), ArticleFig(id=1174443820591755705, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.3, caption=
Effects of mass ratio of oxalic acid to rare earth on precipitation rate of rare earth and iron and total amount of rare earth oxide in acid solution of NdFeB waste, figureFileSmall=RgEGxkS96Mf7qOAGdColmg==, figureFileBig=l3z8OziHM4kjdM0/qJaROw==, tableContent=null), ArticleFig(id=1174443820650475962, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图3, caption=
草酸与稀土质量比对钕铁硼废料酸解液中稀土、铁沉淀率及氧化物中稀土总量的影响, figureFileSmall=RgEGxkS96Mf7qOAGdColmg==, figureFileBig=l3z8OziHM4kjdM0/qJaROw==, tableContent=null), ArticleFig(id=1174443820730167739, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.4, caption=
Effect of solid mass to liquid volume ratio of polishing powder waste to precipitated liquid on leaching rate of rare earth in polishing powder waste, figureFileSmall=zz1oPiWHR6Uiy91aGQ/7iw==, figureFileBig=1oiMdvB442zd+ExIe5jDdQ==, tableContent=null), ArticleFig(id=1174443820788887996, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图4, caption=
抛光粉废粉与沉淀后液质量体积比对抛光粉废粉中稀土浸出率的影响, figureFileSmall=zz1oPiWHR6Uiy91aGQ/7iw==, figureFileBig=1oiMdvB442zd+ExIe5jDdQ==, tableContent=null), ArticleFig(id=1174443820868579773, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.5, caption=
Effect of volume ratio of hydrochloric acid to precipitated liquid on leaching rate of rare earth in polishing powder waste, figureFileSmall=2VaJyl8l2WOtnCItFBnhrg==, figureFileBig=a7Bx06/SYXlnGvUWOLyuIw==, tableContent=null), ArticleFig(id=1174443820918911422, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图5, caption=
盐酸与沉淀后液体积比对抛光粉废粉中稀土浸出率的影响, figureFileSmall=2VaJyl8l2WOtnCItFBnhrg==, figureFileBig=a7Bx06/SYXlnGvUWOLyuIw==, tableContent=null), ArticleFig(id=1174443820973437375, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.6, caption=
Effect of reaction time on leaching rate of rare earth in polishing powder waste, figureFileSmall=NHK2v0LtIb3MeH4w4r4fMg==, figureFileBig=/VAilvkhEb34QyVSjdn/ig==, tableContent=null), ArticleFig(id=1174443821137015232, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图6, caption=
反应时间对抛光粉废粉中稀土浸出率的影响, figureFileSmall=NHK2v0LtIb3MeH4w4r4fMg==, figureFileBig=/VAilvkhEb34QyVSjdn/ig==, tableContent=null), ArticleFig(id=1174443821233484225, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Fig.7, caption=
Effect of reaction temperature on leaching rate of rare earth in polishing powder waste, figureFileSmall=2n6NFHc7UN0MUmyVQQEUvQ==, figureFileBig=og6yDbWe9vLyWFd6KgHhog==, tableContent=null), ArticleFig(id=1174443821384479170, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=图7, caption=
反应温度对抛光粉废粉中稀土浸出率的影响, figureFileSmall=2n6NFHc7UN0MUmyVQQEUvQ==, figureFileBig=og6yDbWe9vLyWFd6KgHhog==, tableContent=null), ArticleFig(id=1174443821447393731, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Table 1, caption=
Main chemical components of NdFeB waste %
, figureFileSmall=null, figureFileBig=null, tableContent=
| REO | Fe | B | Nd2O3/REO | Pr6O11/REO | CeO2/REO |
| 37.78 | 61.52 | 0.54 | 66.40 | 21.14 | 12.26 |
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钕铁硼废料的主要化学成分
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| REO | Fe | B | Nd2O3/REO | Pr6O11/REO | CeO2/REO |
| 37.78 | 61.52 | 0.54 | 66.40 | 21.14 | 12.26 |
), ArticleFig(id=1174443821573222853, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Table 2, caption=
Main chemical components of polishing powder waste %
, figureFileSmall=null, figureFileBig=null, tableContent=
| REO | CeO2/ REO | La2O3/ REO | Lu2O3/ REO | SiO2 | Al2O3 | CaO | MgO |
| 67.95 | 73.10 | 26.57 | 0.44 | 7.68 | 8.94 | 0.60 | 0.21 |
), ArticleFig(id=1174443821623554502, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=表2, caption=
抛光粉废粉的主要化学成分
, figureFileSmall=null, figureFileBig=null, tableContent=
| REO | CeO2/ REO | La2O3/ REO | Lu2O3/ REO | SiO2 | Al2O3 | CaO | MgO |
| 67.95 | 73.10 | 26.57 | 0.44 | 7.68 | 8.94 | 0.60 | 0.21 |
), ArticleFig(id=1174443821720023495, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=EN, label=Table 3, caption=
Results of comprehensive verification test
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验编号 | 稀土浸出率/% |
| 1 | 82.40 |
| 2 | 82.32 |
| 3 | 82.52 |
| 平均 | 82.41 |
), ArticleFig(id=1174443821787132360, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1160637004145316311, language=CN, label=表3, caption=
综合验证试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验编号 | 稀土浸出率/% |
| 1 | 82.40 |
| 2 | 82.32 |
| 3 | 82.52 |
| 平均 | 82.41 |
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