The steel industry is on its way towards more environmentally friendly steelmaking. To achieve the ambitious goals of significant CO2 emissions reduction, new processes, practices, sources on-line data, and digitalization together with automation will be required. address these issues, this paper discusses optical emission spectroscopy (OES) as an data acquisition method for industrial electric...

the histry of metal production sepecia11y iron-and steelmaking from 7000 b.c. in iran and in the world is presented in this paper. the planned steel making projects for iran since 17 century up to present is explained

The oxygen steelmaking process rapidly refines a charge of molten pig iron and ambient scrap into steel of a desired carbon and temperature using high purity oxygen. Steel is made in discrete batches called heats. The furnace or converter is a barrel shaped, open topped, refractory lined vessel that can rotate on a horizontal trunnion axis. The basic operational steps of the process (BOF) are s...

The way to decarbonization will be characterized by the huge production of hydrogen through sustainable routes. Thus, basic is water electrolysis sustained renewable energy sources allowing for obtaining “green hydrogen”. present paper reviews main available technologies finalized production. We describe fundamental and problems related purification and/or desalinization before electrolysis. As...

The iron and steel industry is one of the world's largest industrial emitters greenhouse gases. One promising option for decarbonising hydrogen direct reduction (H-DR) with electric arc furnace (EAF) steelmaking, powered by zero carbon electricity. However, to date, little attention has been given energy system requirements adopting such a highly energy-intensive process. This study integrates ...

in this study, vanadium recovery from the steelmaking converter slag was studied. salt roasting-basic leaching is the process which was applied to separate and extract vanadium from steel making slag. ground slag was roasted after mixing with determined quantities of sodium carbonate. the effect of time and temperature of roasting and sodium carbonate content were studied. the optimum temperatu...