Graduate School of Engineering
Department of Metallurgy
Metallurgical Process Engineering(Prof. Nagasaka)
Brief Summary of the Research
Our research group investigates the pyrometallurgical process of base metals such as iron, aluminum, etc. Smelting and refining processes are the main target of our research based on thermodynamics and kinetics. Also, utilization of secondary resources such as steelmaking slags, electric arc furnace dust (EAFD) is investigated. Phosphorus recovery from steelmaking slag by various methods is continuously investigated in our group. Zinc recovery from EAFD by use of CaO addition process has been developed by our group and this process has been proved to be effective on large scale applications. The basic concept of our group is “Think SMART” (Sustainable metallurgy based on all-a-round recycling technology). For sustainable growth of our society, decisions based on fair evaluation based of energy, exergy, cost, life cycle assessment (LCA) etc. will be more important. Our group will provide a metallurgical process which will make world a better place.
New technology to recover zinc from EAF dust
EAF (Electric Arc Furnace) dust is a by-product of the steel making process and known as the only one potential route to collect the secondary zinc resource. The new process makes a metallic zinc and slag from EAF dust.
Development of P-innovation technology
Our research group has pointed out that the steelmaking slag has considerable high potential as a new secondary source of phosphorus. This project aims to develop new green process of yellow phosphorus production from unutilized secondary phosphorus sources such as steelmaking slag.