CAS OpenIR
Multi-scale investigation of the formation and properties of high-grade rutile TiO2 from titanium slags using microwave heating
Chen, G; Pu, J; Chen, J; Peng, JH; Srinivasakannan, C; Ruan, RS; Chen, Guo; Pu, Jing; Chen, Jin; Peng, Jinhui; Srinivasakannan, C.; Ruan, Rongsheng
2018
Source PublicationROYAL SOCIETY OPEN SCIENCE
ISSN2054-5703
Volume5Issue:6
Abstract

In this paper, the phase transition of titanium slag under microwave heating observed through electron microscopy was systematically investigated. The phase identification and transformation as well as the morphology of samples before and after each treatment were characterized using X-ray powder diffraction (XRD), Fouriertransform infrared spectroscopy, Raman spectroscopy and scanning electron microscopy (SEM). The XRD confirmed that sodium salt roasting could modify the phase composition of titanium slag. The microwave roasting in the presence of sodium salt increased the rutile TiO2 with high crystallinity after acid leaching. The Raman spectroscopy demonstrated the phase transition of titanium slag from anosovite to rutile TiO2 after a series of treatments, and the SEM analyses showed that the surface of calcined products grew plenty of rutile TiO2 with typical characteristics. The results indicate a successful process for an effective and efficient way for the utilization of both titanium slag and preparation of retile TiO2.

KeywordTitanium Slag Mechanical Activation Microwave Heating Phase-transformation Electron Microscopy Sulfuric-acid Phase Transition Rich Slag Rutile Tio2 Ilmenite Irradiation Separation Kinetics
SubtypeArticle
DOI10.1098/rsos.171858
WOS IDWOS:000437210500011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26799
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Chen, G,Pu, J,Chen, J,et al. Multi-scale investigation of the formation and properties of high-grade rutile TiO2 from titanium slags using microwave heating[J]. ROYAL SOCIETY OPEN SCIENCE,2018,5(6).
APA Chen, G.,Pu, J.,Chen, J.,Peng, JH.,Srinivasakannan, C.,...&Ruan, Rongsheng.(2018).Multi-scale investigation of the formation and properties of high-grade rutile TiO2 from titanium slags using microwave heating.ROYAL SOCIETY OPEN SCIENCE,5(6).
MLA Chen, G,et al."Multi-scale investigation of the formation and properties of high-grade rutile TiO2 from titanium slags using microwave heating".ROYAL SOCIETY OPEN SCIENCE 5.6(2018).
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