Fluorination of alpha-Fe2O3 by NH4HF2 to Produce FeF3

doi:10.1134/S0036023621140060

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	Fluorination of alpha-Fe2O3 by NH4HF2 to Produce FeF3
	Wang, Hong 1,3; Zhou, Yuebo 1,3; Mo, Chenggang 1,3; Zhang, Lina 1,3; Cui, Junjun 2
刊名	RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
	2021-12-01
卷号	66 期号:14 页码:2017-2026
关键词	ammonium bifluoride fluorination thermal decomposition FeF3 derivative thermogravimetry differential thermal analysis
ISSN号	0036-0236
DOI	10.1134/S0036023621140060
通讯作者	Wang, Hong(54729951@qq.com)
英文摘要	Fluorination of alpha-Fe2O3 by NH4HF2 has been analyzed in this study using simultaneous thermogravimetry and differential thermal analysis (TG-DTA), scanning electron microscopy (SEM), and X-ray powder diffraction (XRD). The results indicated that the mass ratio NH4HF2 to Fe2O3 has no influence on the fluorination process. The fluorination starts at room temperature, dominates at 175.6 degrees C, and completes at 200 degrees C with the formation of (NH4)(3)FeF6. With further heat-treatment, (NH4)(3)FeF6 progressively releases NH4F by the formation of NH4FeF4 at 258.1 degrees C, then (NH4)(0.18)FeF3 at 320 degrees C and finally FeF3 with minor FeF2 at 400 degrees C. NH4F released during the decomposition of (NH4)(3)FeF6 will fluorinate the un-reacted Fe2O3.
资助项目	Scientific Research Fund of Liaoning Provincial Education Department[L202002]
WOS研究方向	Chemistry
语种	英语
出版者	MAIK NAUKA/INTERPERIODICA/SPRINGER
WOS记录号	WOS:000740986600002
资助机构	Scientific Research Fund of Liaoning Provincial Education Department
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173747]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Hong
作者单位	1.Shenyang Inst Technol, Sch Mech Engn & Automat, Fushun 113122, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shenyang Inst Technol, Liaoning Key Lab Informat Phys Fus & Intelligent, Fushun 113122, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hong,Zhou, Yuebo,Mo, Chenggang,et al. Fluorination of alpha-Fe2O3 by NH4HF2 to Produce FeF3[J]. RUSSIAN JOURNAL OF INORGANIC CHEMISTRY,2021,66(14):2017-2026.
APA	Wang, Hong,Zhou, Yuebo,Mo, Chenggang,Zhang, Lina,&Cui, Junjun.(2021).Fluorination of alpha-Fe2O3 by NH4HF2 to Produce FeF3.RUSSIAN JOURNAL OF INORGANIC CHEMISTRY,66(14),2017-2026.
MLA	Wang, Hong,et al."Fluorination of alpha-Fe2O3 by NH4HF2 to Produce FeF3".RUSSIAN JOURNAL OF INORGANIC CHEMISTRY 66.14(2021):2017-2026.