Studi pengaruh temperatur reduksi pada peningkatan kadar nikel bijih saprolit melalui proses reduksi karbotermik dengan batubara = Study of the effect of reduction temperature on nickel saprolite ore level enhancement through carbothermic reduction process with coal

Studi pengaruh temperatur reduksi terhadap hasil reduksi langsung pelet komposit bijih besi/batu bara dengan menggunakan single conveyor belt hearth furnace = Study of reduction temperature effect on direct reduction product of iron ore/ coal composite pellet using single conveyor belt hearth furnace

Pengaruh kokas dalam proses reduksi bijih mangan lokal kadar menengah pada submerged arc furnace menjadi ferromangan = Effect of coke in the local medium grade of manganese ore reduction process into ferromanganese with submerged arc furnace

Pengaruh Basisitas Slag pada Proses Reduksi Selektif Bijih Nikel Laterit (Limonit dan Saprolit) = Effect of Slag Basicity on Selective Reduction Process of Nickel Laterite (Limonite and Saprolite)

Studi pengaruh rasio massa pelet komposit bijih besi/batu bara terhadap hasil reduksi langsung pelet komposit bijih besi/batubara dengan menggunakan single conveyor belt hearth furnace = Study of iron ore/coal pellet composite mass ratio effect on direct reduction iron ore/coal pellet composite conveyor belt using single hearth furnace