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

Autor: Liwen Zhang, Xiaoli Xi, Zuoren Nie
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Electrochemistry Communications, Vol 134, Iss , Pp 107179- (2022)
Druh dokumentu: article
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2021.107179
Popis: 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.
Databáze: Directory of Open Access Journals