Article(id=1305177707747238304, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1305177706027578094, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2026.04.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1773504000000, receivedDateStr=2026-03-15, revisedDate=1774627200000, revisedDateStr=2026-03-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1789108214555, onlineDateStr=2026-09-11, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789108214555, onlineIssueDateStr=2026-09-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789108214555, creator=13701087609, updateTime=1789108214555, 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=455, endPage=466, ext={EN=ArticleExt(id=1305177708229583265, articleId=1305177707747238304, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Research Progress and Prospects in Desilication Technology for High-Silica, Low-Grade Bauxite, columnId=1152626642049446094, journalTitle=Hydrometallurgy of China, columnName=Reviews, runingTitle=null, highlight=null, articleAbstract=

Bauxite resources in China are predominantly sedimentary diasporic ores, characterized by well-developed clay minerals and the fine-grained intergrowth of aluminum-bearing minerals with siliceous gangue. These ores typically have high silica content and a low Al/Si ratio, making them unsuitable for direct processing by the Bayer method. With the depletion of high-grade resources, efficient desilication and beneficiation of low-grade bauxite have become essential for ensuring the security of the alumina industry. This paper systematically reviews desilication technologies for low-grade bauxite. It analyzes the distribution of bauxite resources and the characteristics of the ores, and further clarifies the constraints imposed by mineralogical features and mineral intergrowth on beneficiation performance. The review focuses on physical beneficiation methods, including gravity separation and flotation, as well as chemical methods, microwave activation, and the calcification-carbonation process. Their desilication efficiency, economic cost, and environmental impact are comparatively evaluated. Flotation remains the dominant technology, but its selectivity is significantly reduced by fine-grained mineral intergrowth. Chemical methods and energy-assisted techniques can help overcome the limitations of mineral liberation, but they are often associated with high energy consumption and complex process flows. The calcification-carbonation process integrates desilication with red mud valorization, representing a promising pathway for green metallurgy. Finally, desilication technologies should be tailored to differences in mineralogical characteristics. Process selection should move beyond a single-indicator criterion toward a comprehensive evaluation of energy efficiency, silica transformation pathways, and solid-waste properties. This approach will promote the efficient, green, and high-value utilization of high-silica bauxite.

, authors=Yuzhe LIU¹, Chunlin HE^{2, 3}, Yuan SUN¹, Yu LEI¹, Shuai LIU⁴, Hongyu ZHANG¹, Yizhou ZHOU¹, authorsList=Yuzhe LIU, Chunlin HE, Yuan SUN, Yu LEI, Shuai LIU, Hongyu ZHANG, Yizhou ZHOU, authorCompany=null, correspAuthors=Chunlin HE, Yuan SUN, 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=1305177708573516194, articleId=1305177707747238304, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=高硅低品位铝土矿脱硅技术研究进展与展望, columnId=1152626642166886607, journalTitle=湿法冶金, columnName=综合评述, runingTitle=null, highlight=null, articleAbstract=

我国铝土矿以沉积型一水硬铝石为主，其中黏土矿物发育，铝矿物与含硅脉石细粒共生，导致其具有高硅、低铝硅比特征，难以满足拜耳法生产要求，且随着优质铝土矿资源不断减少，高效脱硅提质已成为保障我国铝产业安全发展的关键。本文系统综述了低品位铝土矿脱硅技术，首先分析了资源分布与矿石特征，揭示了矿物嵌布对分选的制约机制；进而重点论述了物理分选（重选、浮选）、化学法、微波活化、钙化-碳化法等主要脱硅技术，对比了各技术路线的脱硅效率、经济成本与环境影响。其中，浮选虽为主流技术，但因微细粒嵌布导致选择性降低；化学法与能场强化可突破解离瓶颈，但能耗高、流程复杂；钙化—碳化法通过耦合脱硅与赤泥资源化，代表了绿色冶金方向。最后指出脱硅技术选择应基于矿相特征差异化适配，技术路径选择要从单一指标转向能效、硅去向与固废属性综合权衡，以推动我国高硅铝土矿高效、绿色、高值化利用，实现铝产业的可持续发展。

, authors=刘宇哲¹, 何春林^{2, 3}, 孙元¹, 雷宇¹, 刘帅⁴, 张洪宇¹, 周亦胄¹, authorsList=刘宇哲, 何春林, 孙元, 雷宇, 刘帅, 张洪宇, 周亦胄, authorCompany=null, correspAuthors=何春林, 孙元, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=+zlX225r+9y0UAagm3FfHw==, magXml=VW84JkpGy3ESr972GGWmJg==, pdfUrl=null, pdf=Lu9DBewIRCDfFqYHEfpZ2A==, pdfFileSize=2176874, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=PMwU4aWaRezd3yH9RdjduQ==, mapNumber=null, fund=null)}, authors=[Author(id=1305177710838440368, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1305177707747238304, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1305177710943297970, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1305177707747238304, authorId=1305177710838440368, language=EN, stringName=Yuzhe LIU, firstName=Yuzhe, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Shi Changxu Advanced Materials Centre, Institute of Metal Research, Chinese Academy of Sciences, Shenyang　110016, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1305177711022989747, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1305177707747238304, authorId=1305177710838440368, language=CN, stringName=刘宇哲, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．中国科学院金属研究所 师昌绪先进材料中心，辽宁 沈阳　110016, bio={"content":"

刘宇哲（1994—），男，博士，助理研究员，主要研究方向为高温合金二次资源循环利用。

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刘宇哲（1994—），男，博士，助理研究员，主要研究方向为高温合金二次资源循环利用。

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