The Use of Coffee Waste in the Reduction of Metallurgical Slags

Autor: T. Matuła, Ł. Kortyka, Ł. Myćka, J. Łabaj, T. Wojtal

Publikováno v: Archives of Foundry Engineering, Vol vol. 23, Iss No 1, Pp 103-109 (2023)

Coffee is grown in over 50 countries around the world, and its sale is the largest in the world trade after crude oil. In the case of coffee beans, after consumption remains a solid waste in the form of a waste plant extract. At present, coffee waste

Externí odkaz: https://doaj.org/article/972a04e3e30b4323944c9cd808eb4d11

The effect of organic acids as leaching agents for hydrometallurgical recovery of metals from PCBs

Autor: M. Lisinska, B. Gajda, M. Saternus, S. Brozová, T. Wojtal, M. Rzelewska-Piekut

Publikováno v: Metalurgija, Vol 61, Iss 3-4, Pp 609-612 (2022)

The hydrometallurgical treatment, compared to other recycling processes, is of great interest due to its higher efficiency and better economy. In hydrometallurgy, popular agents used in the leaching processes of e-waste include inorganic acids, ammon

Externí odkaz: https://doaj.org/article/3a16859b5e6149e6b38d1874708c11ac

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Two-Stage Leaching of PCBs Using Sulfuric and Nitric Acid with the Addition of Hydrogen Peroxide and Ozone.

Autor: Lisińska M; Zakłady Mechaniczne 'WIROMET' S.A., ul. Wyzwolenia 27, 43-190 Mikołów, Poland., Wojtal T; Faculty of Materials Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland., Saternus M; Faculty of Materials Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland., Willner J; Faculty of Materials Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland., Rzelewska-Piekut M; Institute of Chemical Technology and Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland., Nowacki K; Faculty of Materials Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland.

Publikováno v: Materials (Basel, Switzerland) [Materials (Basel)] 2023 Dec 30; Vol. 17 (1). Date of Electronic Publication: 2023 Dec 30.