CAS OpenIR
Recovery of Fe and Al from red mud by a novel fractional precipitation process
Yu, Fengqin1,2; Lin, Huangfu1,3; Wang, Chao1; Li, Changming1; Yu, Jian1; Li, Wensong2; Gao, Shiqiu1
2020-02-12
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Pages12
AbstractThe development of cheap and effective approach for utilizing red mud (RM) waste is a long and arduous task. This work provided a technically and economically feasible route to utilize RM waste for the production of high valuable chemicals by use of the industrial wastes as cheap raw materials. The Fe and Al elements were first leached from RM through hydrothermal reaction and then were separated by precipitation after the Fe(III) in leachate was reduced to Fe(II) by iron powder. Above 90% Fe and Al were extracted from RM with the Fe and Al purity of about 95% and 45%, respectively. The control test revealed that the main impurity of Al product was caused by the adsorbed SO42- during the precipitation of the Al3+. The structural characterization demonstrated that the obtained Fe products were in nanoscale, and the Ti-Si residue has high BET area of 203.7 m(2)/g. Four products of nano-Fe3O4/nano-Fe, aluminum oxide, Ti-Si residue, and (NH4)(2)SO4 were obtained as valuable chemical materials for industry. This demonstrated utilization of industrial waste to produce high added-value products with high efficiency and low cost will possess promising application prospect for the resource utilization of RM in industry.
KeywordRed mud Hydrothermal reaction Precipitation separation High added value
DOI10.1007/s11356-020-07970-7
Language英语
WOS KeywordIRON ; WATER ; REDUCTION ; ADSORBENT ; ALUMINUM ; KINETICS ; AL2O3 ; TIO2
Funding ProjectInternational Science and Technology Cooperation Program of China[2016YFE0128300] ; Natural Science Foundation of China[21601192] ; Natural Science Foundation of China[21878310] ; State Key Laboratory of Multi-phase Complex Systems[MPCS-2019-0-03]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationInternational Science and Technology Cooperation Program of China ; Natural Science Foundation of China ; State Key Laboratory of Multi-phase Complex Systems
WOS IDWOS:000513055100008
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39195
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Changming; Yu, Jian
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Xiangtan Univ, Sch Chem Engn & Technol, Xiangtan 411105, Hunan, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu, Fengqin,Lin, Huangfu,Wang, Chao,et al. Recovery of Fe and Al from red mud by a novel fractional precipitation process[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:12.
APA Yu, Fengqin.,Lin, Huangfu.,Wang, Chao.,Li, Changming.,Yu, Jian.,...&Gao, Shiqiu.(2020).Recovery of Fe and Al from red mud by a novel fractional precipitation process.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,12.
MLA Yu, Fengqin,et al."Recovery of Fe and Al from red mud by a novel fractional precipitation process".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):12.
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