Recovery of Fe and Al from red mud by a novel fractional precipitation process

doi:10.1007/s11356-020-07970-7

	Recovery of Fe and Al from red mud by a novel fractional precipitation process
	Yu, Fengqin 1,3; Lin, Huangfu 2,3; Wang, Chao 3; Li, Changming 3; Yu, Jian 3; Li, Wensong 1; Gao, Shiqiu 3
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2020-02-12
页码	12
关键词	Red mud Hydrothermal reaction Precipitation separation High added value
ISSN号	0944-1344
DOI	10.1007/s11356-020-07970-7
英文摘要	The 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.
资助项目	International 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关键词	IRON ; WATER ; REDUCTION ; ADSORBENT ; ALUMINUM ; KINETICS ; AL2O3 ; TIO2
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000513055100008
资助机构	International Science and Technology Cooperation Program of China ; Natural Science Foundation of China ; State Key Laboratory of Multi-phase Complex Systems
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39194]
专题	中国科学院过程工程研究所
通讯作者	Li, Changming; Yu, Jian
作者单位	1.Xiangtan Univ, Sch Chem Engn & Technol, Xiangtan 411105, Hunan, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 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.