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Author:

Tang, Kuancheng (Tang, Kuancheng.) | Zhang, Liwen (Zhang, Liwen.) | Fang, Qi (Fang, Qi.) | Liu, Chunjia (Liu, Chunjia.) | Li, Rong (Li, Rong.) | Xi, Xiaoli (Xi, Xiaoli.) | Nie, Zuoren (Nie, Zuoren.)

Indexed by:

EI Scopus SCIE

Abstract:

In this study, tungsten and cobalt were extracted from cemented carbide scrap by three-stage electrodeposition in Na 2 WO 4 molten salt at 900 degrees C in air atmosphere. The cemented carbide scrap was used as the consumable anode, while the cemented carbide calcined material was used as the electrolytically active substance additive. The composition of the cemented carbide calcined material was determined by thermodynamic calculations combined with XRD phase analysis. The study investigated the promoting effect of air atmosphere on anode oxidation and the effect of varying the molar ratio of tungsten to cobalt in the molten salt on product composition. Cyclic voltammetry was used to analysed the cathodic reduction behaviour of tungsten and cobalt. The nucleation mechanism of tungsten and cobalt was determined to be instantaneous by chronoamperometry. Finally, metallic tungsten and cobalt were successfully separated and extracted by three-stage constant current electrolysis.

Keyword:

Molten salt electrolysis Cemented carbide Recovery Air atmosphere

Author Community:

  • [ 1 ] [Tang, Kuancheng]Beijing Univ Technol, Coll Mat Sci & Engn, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Liwen]Beijing Univ Technol, Coll Mat Sci & Engn, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China
  • [ 3 ] [Xi, Xiaoli]Beijing Univ Technol, Coll Mat Sci & Engn, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China
  • [ 4 ] [Nie, Zuoren]Beijing Univ Technol, Coll Mat Sci & Engn, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, Liwen]Beijing Univ Technol, Natl Engn Lab Ind Bigdata Applicat Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Nie, Zuoren]Beijing Univ Technol, Natl Engn Lab Ind Bigdata Applicat Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Fang, Qi]Xiamen Tungsten Co Ltd, China Natl R&D Ctr Tungsten Technol, Xiamen 361005, Peoples R China
  • [ 8 ] [Liu, Chunjia]Xiamen Tungsten Co Ltd, China Natl R&D Ctr Tungsten Technol, Xiamen 361005, Peoples R China
  • [ 9 ] [Li, Rong]Xiamen Tungsten Co Ltd, China Natl R&D Ctr Tungsten Technol, Xiamen 361005, Peoples R China
  • [ 10 ] [Xi, Xiaoli]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 11 ] [Nie, Zuoren]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Xi, Xiaoli]Beijing Univ Technol, Coll Mat Sci & Engn, Collaborat Innovat Ctr Capital Resource Recycling, Beijing 100124, Peoples R China;;

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Source :

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS

ISSN: 0263-4368

Year: 2024

Volume: 121

3 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

Affiliated Colleges:

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