Dipl.-Ing. Dr.mont. Christian Hoy
In recent years, the recycling of refractory metals has become more important. Specific reasons for this trend are local scarcities of raw materials because of remote deposits and the economic incentive of secondary metallurgy. At present there is generally no lack of supply of refractory metals like vanadium, nickel and molybdenum in the sector of ferro-alloys. Nevertheless, basic research projects that deal with an improvement of existing recycling routes have already been started. This project deals with known and new residues containing refractory metals which are feasible in secondary metallurgy. A comparison of various solid wastes like trash of refining crude oil or cogeneration plant residues should be prepared.