Comparative smelting of thermally pretreated electronic waste

• Autorzy: Szczepaniak Włodzimierz , Zabłocka-Malicka Monika , Gurgul Agnieszka , Leśniewicz Anna , Ochromowicz Katarzyna

Identyfikatory

DOI

10.37190/ppmp/142454

• Języki publikacji: EN

Abstrakty

EN

Used electronic inverters were processed thermally to eliminate organic matrix components through oxidative incineration (IN), oxidative steam gasification (SG), and pyrolysis (PY). Such prepared material was melted at 1250°C with sodium/calcium silicate waste glass under reductive and oxidative atmospheres. The highest Cu recovery in the form of a gravitationally separated metallic phase was found for oxidative smelting of the PY sample and reductive smelting of the IN sample. Recovery of precious metals was analyzed, taking Cu recovery as the reference. It was found that the recovery of Pd was better than copper recovery in each experiment, and the recovery of Au was only in the oxidative smelting of the SG sample and reductive smelting of the IN sample. Recovery of Ag and Cu was similar but only for the reductive smelting of the PY and SG samples. It was demonstrated that Cu, as well as Au, Ag, and Pd recovery, substantially depends on the transport of metals through the metal/slag interface.

Słowa kluczowe

EN

electronic waste; precious metals; recycling; incineration; gasification; pyrolysis; smelting

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 6
• Strony: 55--70
• Opis fizyczny: Bibliogr. 38 poz., rys. kolor., wykr.

Twórcy

autor

Szczepaniak Włodzimierz

• Wrocław University of Science and Technology, Faculty of Environmental Engineering, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland

autor

Zabłocka-Malicka Monika

• Wrocław University of Science and Technology, Faculty of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Gurgul Agnieszka

• Wrocław University of Science and Technology, Faculty of Environmental Engineering, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland

autor

Leśniewicz Anna

• Wrocław University of Science and Technology, Faculty of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Ochromowicz Katarzyna

• Wrocław University of Science and Technology, Faculty of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

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