Pengaruh reduksi roasting dan konsentrasi leaching asam sulfat terhadap recovery nikel dari bijih limonit = Recovery of nickel using limonite ore: the effect of reduction roasting and sulphuric acid at various concentration

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

Pengaruh waktu dan kecepatan agitasi pelindian atmosferik terhadap perolehan nikel dari bijih saprolit = The effect of duration and agitation speed of atmospheric leaching on the recovery percentage of nickel from saprolite ores

Studi pengaruh penggunaan float-sink process dan roasting reduction terhadap transformasi fasa bijih nikel dari bijih saprolit = study of float sink process and roasting reduction treatment effect to saprolite ore based nickel ore phase transform

Pengaruh sulfidasi selektif terhadap karakteristik pelarutan Ni/Co pada proses pelindian atmosferik bijih nikel laterit dengan asam sulfat = Selective sulphidation effect on characteristics of Ni/Co dissolution in atmospheric leaching of laterite nickel ores with sulfuric acid