Process for smoldering or coking bituminous coal in a rotating drum
DE1246780B
Process for refining finely divided ores, in particular iron ores, by means of finely divided reducing coal and electrical heating
DE1188765B
Metallurgical furnace with a vault to be renewed by repositioning it from the outside
DE1149499B
Metallurgical melting furnace with a vault that can be renewed from the outside using additional stones
DE1122564B
Process for iron extraction from suspended, dusty or fine-grained iron ores by means of fuels in a fine degree of distribution above the melting point of the non-gaseous reaction products
DE1000411B
Process for cleaning converter exhaust gases
DE965493C
Process for the treatment of liquid pig iron or crude steel, which is filtered through a highly heated bed of coke
DE1153395B
Process for iron extraction from suspended, dusty or fine-grained iron ores using fuels with a fine degree of distribution
DE1153394B
Process for iron extraction from dusty or fine-grained iron ores in suspension by means of fuels in a fine degree of distribution
DE1086256B
Process and device for iron extraction from dust-like or fine-grained iron ores by means of fuels in a fine degree of distribution above the melting point of the non-gaseous reaction products
DE1148245B
Process for the production of liquid iron in a steam boiler furnace operated as a melting chamber furnace with finely divided fuel
