Studi pengaruh penambahan batubara pada proses roasting reduction bijih nikel saprolit dan pelindian (leaching) dalam larutan asam sulfat 1 molar = Study of coal addition effect on roasting reduction process of saprolitic nickel ore and leaching in sulfuric acid 1 molar

Studi Pengaruh Agen Presipitasi NaOH dalam Proses Presipitasi Mixed Hydroxide Precipitate (MHP) pada Sampel hasil Pelindian Bijih Nikel Laterit = Study of the effect of NaOH Precipitation agent in the precipitation process of mixed hydroxide precipitate (MHP) on nickel ore leaching samples

Pengaruh reduksi roasting pada bijih nikel saprolit dan perbedaan konsentrasi pada pelindian atmosferik asam sulfat = The effect reduction roasting of nickel using saprolite ore and various concentration of atmospheric sulphuric acid leaching

Reduksi selektif karbotermik bijih nikel kadar rendah dengan penambahan aditif Na2SO4 dan NaCl = carbothermic selective reduction of low grade nickel ore with addition of Na2SO4 dan NaCl

Pembuatan MnO2 dari Bijih Mangan kadar rendah dengan proses pelindian pemanggangan reduktif = Fabrication of mno2 from low grade manganese ores with reductive roast leaching