A new method for preparation of tungsten carbide powder by in situ electrochemical reduction

被引：6
|
作者：
Zhang, Liwen [1 ,3 ]
Xi, Xiaoli [1 ,2 ]
Nie, Zuoren [1 ,2 ,3 ]
机构：
[1] Beijing Univ Technol, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China
[2] Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
[3] Beijing Univ Technol, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2022年 / 134卷
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
Tungsten carbide powder preparation; In situ electrochemical reduction; Cemented carbide recovery; Chloride and fluoride molten salt system; Electrochemical properties of tungsten ions; CEMENTED CARBIDE; ELECTROLYTIC SEPARATION; WC SCRAP; COBALT; CARBONIZATION; BEHAVIOR; NANOPOWDERS; DISSOLUTION; EXTRACTION; IONS;
D O I：
10.1016/j.elecom.2021.107179
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new electrochemical method for efficient and green recovery of cemented carbide in a molten salt is described. Tungsten powder is the main product when recovering cemented carbide by molten salt electrolysis. However, the main purpose of tungsten powder is to make tungsten carbide. Based on this, a new method for preparing tungsten carbide by in situ reduction was developed. Pure tungsten carbide powder was successfully prepared in situ by pulse electrolysis in a NaF-KF molten salt system at 1073 K. This not only effectively recovers the spent cemented carbide, but also enriches the product system and optimizes the method for preparation of tungsten carbide powder.
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页数：4
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