Preparation of high-purity molten FLiNaK salt by the hydrofluorination process

被引：42

作者：

Zong, Guoqiang ^{[1
]}

Zhang, Zhi-Bing ^{[1
]}

Sun, Jia-Hong ^{[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 | 2017年 / 197卷

关键词：

FLiNaK; Hydrofluorination; High purity; Purification; Oxygen content; MO-CR ALLOY; NAF-KF SALT; CORROSION PERFORMANCE; NUCLEAR APPLICATIONS; WELD JOINT; TEMPERATURE; SUPERALLOY; BEHAVIOR;

D O I：

10.1016/j.jfluchem.2017.03.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation conditions and purification reaction mechanism for H-2-HF treatment of molten FLiNaK salt were investigated. The optimal process conditions for preparation of high-purity molten FLiNaK salt were obtained. They are purification temperature of 650 degrees C, liquid height of 0.9 m, purification time of 48 h, flow ratio of H-2/HF = 10, flow volume magnitude of 800 mL/min, and reaction pressure of 0 MPa. The oxygen content of the prepared molten salt was around 80 ppm, corrosion impurity elements (Cr, Fe, and Ni) were less than 20 ppm, and the S and P contents were below 5 ppm. The quality of FLiNaK molten salt prepared by this hydrofluorination process is better than that obtained by adding NH4HF2 as a fluorinating reagent. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：134 / 141

页数：8

共 50 条

[31] Preparation of high-purity baicalein from Scutellaria baicalensis Georgi [J].

Jiang Jianjun ;

Dong Huiru .

NATURAL PRODUCT RESEARCH, 2008, 22 (16) :1410-1412

[32] Preparation of High-purity Quartz Sand byLeaching with Mixed Acids [J].

Zhao X. ;

Liu X. ;

Li C. ;

Hong Y. ;

Wang D. ;

Liu M. .

Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society, 2021, 49 (03) :581-589

[33] Preparation of high-purity α-alumina by oil-in-water microemulsion [J].

Ma, Jingjing ;

Wu, Bolin .

NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3, 2012, 399-401 :673-676

[34] Preparation and Characterization of High-Purity Metal Fluorides for Photonic Applications [J].

Patterson, Wendy M. ;

Stark, Peter C. ;

Yoshida, Thomas M. ;

Sheik-Bahae, Mansoor ;

Hehlen, Markus P. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (09) :2896-2901

[35] Preparation of high-purity gallium from semiconductor fabrication waste [J].

Kozlov, SA ;

Potolokov, NA ;

Fedorov, VA ;

Aganichev, MP ;

Sidorov, OL ;

Sazhin, MV ;

Petrukhin, IO .

INORGANIC MATERIALS, 2003, 39 (12) :1257-1266

[36] Preparation of High-Purity Gallium from Semiconductor Fabrication Waste [J].

S. A. Kozlov ;

N. A. Potolokov ;

V. A. Fedorov ;

M. P. Aganichev ;

O. L. Sidorov ;

M. V. Sazhin ;

I. O. Petrukhin .

Inorganic Materials, 2003, 39 :1257-1266

[37] Preparation of high-purity cerium via electromagnetic directional solidification [J].

Zhang, Pengkun ;

Zhang, Zhendong ;

Zhang, Yakun ;

Ma, Wenhui .

MATERIALS TODAY COMMUNICATIONS, 2025, 44

[38] Influence of SiC microstructure on its corrosion behavior in molten FLiNaK salt [J].

Espinoza-Perez, L. J. ;

Esquivel-Medina, S. ;

Lopez-Honorato, E. .

CERAMICS INTERNATIONAL, 2021, 47 (11) :15527-15532

[39] Preparation of 6N,7N High-Purity Gallium by Crystallization: Process Optimization [J].

Hou, Jianfeng ;

Pan, Kefeng ;

Tan, Xihan .

MATERIALS, 2019, 12 (16)

[40] Effects of Addition of Tea Polyphenol Palmitate and Process Parameters on the Preparation of High-Purity EPA Ethyl Ester [J].

Ding, Xuyang ;

Liu, Fujun ;

Zheng, Rui ;

Pei, Xuechen ;

Wang, Ziye ;

Zhou, Dayong ;

Yin, Fawen .

FOODS, 2023, 12 (05)

← 1 2 3 4 5 →