One-step synthesis of high-purity Li2BeF4 molten salt

被引：16

作者：

Zong, Guoqiang ^{[1
]}

Cui, Zhen-Hua ^{[1
]}

Sun, Xiao-Gang ^{[1
]}

Xiao, Ji-Chang ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem, 345 Lingling Rd, Shanghai 200032, Peoples R China

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2016年 / 181卷

基金：

中国国家自然科学基金;

关键词：

FLiBe molten salt; One-step synthesis; (NH4)(2)BeF4; Recrystallization; CRYSTAL-STRUCTURE; FLIBE; TEMPERATURE; CHEMISTRY;

D O I：

10.1016/j.jfluchem.2015.10.017

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

(NH4)(2)BeF4 was synthesized and purified by recrystallization to remove sulfate ions before being used as the main raw material to prepare Li2BeF4 molten salt. (NH4)(2)BeF4 was heated and melted with LiF at high temperature to produce Li2BeF4 molten salt without separate BeF2 preparation by pyrolysis. The obtained salt has a melting point of 458-460 degrees C and an oxygen content below 500 ppm. The main impure metal ion and anion concentrations are less than 10 ppm and 80 ppm, respectively. This is a convenient, efficient and economical preparative method for high-purity Li2BeF4 molten salt. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：30 / 35

页数：6

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