Direct reduction of ores and concentration of metallic values

Direct reduction process and apparatus

Direct reduction process for iron ores with fluidized bed system

Direct reduction process for iron oxide-containing materials

Direct reduction process for producing metallic iron

Direct reduction process for producing reduced iron

Direct reduction process in a rotary hearth furnace

Direct reduction process in a rotary kiln

Direct reduction process in reactor with hot discharge

Direct reduction process using a single fluidised bed

Direct reduction reactor with hot discharge

Direct reduction rotary kiln with improved air injection

Direct reduction steelmaking process

Direct smelting apparatus and process

Direct smelting of zinc bearing compounds to produce...

Direct smelting or zinc concentrates and residues

Direct smelting process

Direct smelting process

Direct smelting process

Direct smelting process