12th International Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing: Poster Session
Sponsored by: ACerS Engineering Ceramics Division
Program Organizers: Surojit Gupta, University of North Dakota; Rajiv Asthana, University of Wisconsin; Mritunjay Singh, Ohio Aerospace Institute; Tatsuki Ohji, AIST; Enrico Bernardo, University of Padova; Zhengyi Fu, Wuhan University of Technology; Hisayuki Suematsu, Nagaoka University of Technololgy; Tatami Junichi, Yokohama national university; Yiquan Wu, Alfred University; Allen Apblett, Oklahoma State University
Tuesday 4:45 PM
November 3, 2020
Room: Poster Hall
Location: MS&T Virtual
An Alternative Optimization Route for the Recovery of Stainless Steel Alloying Elements: Diego Santa Rosa Coradini1; Ana Rabelo de Lima2; Rüdiger Deike2; Victor Bridi Telles3; Helmut Antrekowitsch1; José Roberto de Oliveira3; 1Montauniversty Leoben; 2University of Duisburg-Essen; 3Instituto Federal do Espirito Santo
Recyclability of electrical-arc furnace dust (EAFD) in the form of a briquette was analyzed. Kinect behavior of the briquette’s self-reduction and in contact with molten steel (steel-briquette system) was investigated. The optimal briquette composition used to recover elements such as Cr, V and W was targeted. The dust as-received was magnetically separated to the form of a magnetic (M)EAFD then characterized analytically and microstructurally. Three different compositions of briquettes were prepared: first with 84% of MEAFD and 16% C; second with 82% of MEAFD and 18% C; and third with 80% of MEAFD and 20% C. Reduction experiments at the temperature of 1500°C were carried out to study the rate differences. Reduction experiments showed that the fastest reaction occurred in the briquettes with 20% of C for both systems. The optimal measured recovery was 48.1% Cr, 72.7% W and 47.5% V (in wt.%).