Preventing skull accumulation on a steelmaking lance
Procedure for the purification and recovery of mercury in metall
Process and an apparatus for producing metals and metal alloys
Process and an apparatus for removal of silicon, manganese, carb
Process and apparatus for a direct reduction of iron oxide conta
Process and apparatus for adding particulate solid material...
Process and apparatus for adding particulate solid material...
Process and apparatus for at least temporarily simultaneously su
Process and apparatus for smelting reduction of ores or pre-redu
Process and apparatus for the introduction of gas into a dischar
Process and apparatus for the manufacture of steel
Process and apparatus for the manufacture of steel from iron car
Process and apparatus for the melting of metals in the cupola fu
Process and apparatus for the replacement of a first flow of gas
Process and apparatus for vacuum degassing molten steel
Process and apparatus for vacuum treatment of metals
Process and device for blowing oxygen over metal melts
Process and device for blowing oxygen-containing gas with and wi
Process and device for introducing gases into metal melts
Process and device for separating the constituents of an alloy