What is it about?
Nowadays it is, and in the future will be undoubtedly very important to look for further possibilities of industrial waste recovery. In this article, we set out to find an application possibility for the ZnO product that we obtained from electric arc furnace dust.
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Why is it important?
We focused on the electrical industry. This means that we made test semiconductor components - varistors from the recycle-obtained ZnO (+ impurities) and tested their electrical characteristics. From the measured electrical parameters, the non-linear characteristic typical of voltage-dependent resistors–varistors is evident and also the dielectric loss factor value is relatively high, which is typical for ZnO varistors.
Perspectives
Based on the results of the electrical characteristics, we conclude that the ZnO product, which is the output of hydrometallurgical recycling of EAFD, is a potentially suitable material for use in the production of ZnO varistors in the future. We hope that our results can also become an important factor for further research and experimentation in the field of utilization of chemical components and phases contained in electric arc furnace dust in the electrotechnical industry and will motivate further scientific experiments and will help to intensify the interest of the academic, scientific and industrial community in the field of hazardous waste processing and utilization.
Dr Pavol Liptai
Technical university of Kosice
Read the Original
This page is a summary of: Hydrometallurgical Recycling of Electric Arc Furnace Dust, Waste and Biomass Valorization, June 2019, Springer Science + Business Media,
DOI: 10.1007/s12649-019-00722-w.
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