Матеріали конференцій

Environmentally clean way of obtaining valuable raw materials from production waste, occurring in orthophosphoric acid solutions and at high temperature selective extraction of tungsten

Соловйов, В.В.

Tungsten carbide is one of the most important carbide and catalytically active compounds. Currently, more than 60% of the processing of these metals is used to obtain carbides. In industry, tungsten carbide is obtained in two ways: metal carbidization and aluminometric reduction of ores and concentrates. Both methods involve a significant number of time-consuming and complex steps. The production of tungsten carbides by high-temperature electrochemical synthesis from melts is at the level of semi-industrial tests. Hard alloys tungsten carbide - cobalt were the first metal-ceramic hard alloys that received industrial application. In order to return valuable components of hard alloys to production, it is necessary to find the possibility of processing secondary waste containing these components. For the production of hard alloys, matrices of used drilling and cutting tools can be used. Due to the shortage of tungsten and cobalt in recent years, the development of new methods for processing lumpy hard alloy 104 waste is very relevant. The existing methods for isolating the components of hard alloys differ from each other not only in the mode of processing, but also in the nature of the chemical reagents used. Therefore, it is relevant to develop methods that will allow the processing of waste hard alloys tungsten carbide-cobaltate to obtain a high percentage of output WO3.

English

2023-04-10

tungsten carbide

Scientific Publishing Center “Sci-conf.com.ua”

Environmentally clean way of obtaining valuable raw materials from production waste, occurring in orthophosphoric acid solutions and at high temperature selective extraction of tungsten / V.V. Solovyov, O.E. Ilyash, D.V. Usenko, V.L. Cherhynets // Innovations and prospects in modern science : Proceedings of IV International Scientific and Practical Conference Stockholm, Sweden 10-12 April 2023. – Stockholm : SSPG Publish, 2023. – P. 103-106. – URL: https://sci-conf.com.ua/iv-mizhnarodna-naukovo-praktichna-konferentsiya-innovations-and-prospects-in-modern-science-10-12-04-2023-stokgolm-shvetsiya-arhiv/ .