Processing of Tungsten-Containing Tool Using Electrolytic Method

International science and technology conference "Earth science"

Kurkchi, E.U.^1 ; Abkhairova, S.V.^2 ; Yagyaev, E.E.^2

Department of Technologic Education, State Budget Educational Institution of Higher Education of the Republic of Crimea, Crimean Engineering and Pedagogical University, Simferopol, Ukraine^1

Department of Electrical Engineering and Welding, State Budget Educational Institution of Higher Education of the Republic of Crimea, Crimean Engineering and Pedagogical University, Simferopol, Ukraine^2

关键词: Anodic dissolution;    Electrochemical behaviour;    ELectrochemical methods;    Oxide precipitates;    Regeneration process;    Secondary Raw Materials;    Solid-liquid ratio;    Technological regime;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022201/pdf
DOI  :  10.1088/1755-1315/272/2/022201

来源: IOP

【 摘 要 】

The regeneration processes of tungsten-cobalt alloy are studied. The electrochemical behaviour of tungsten and cobalt in tungsten-cobalt alloys in neutral salt solutions is investigated. The advantages of an electrochemical method for processing secondary raw materials by anodic dissolution are shown. It is established that tungsten and cobalt, entering the electrolyte, form insoluble oxides and hydroxides of impurity metals, which, due to poor solubility, quantitatively pass into the sludge. The technological regime of leaching of the oxide precipitate obtained by electrochemical oxidation of the alloy was determined: temperature is 90-95 C; duration time is 2 hours; the concentration of nitric acid is 300-500 g / l; solid-liquid ratio is 1: 5. The advantage of this environmentally friendly method is the comparative simplicity of the process flow scheme, low capital and energy costs. The data obtained in these studies can be used for balance tests in large-scale laboratory, semi-experimental and experimental-industrial levels.