Pengaruh konsentrasi lixiviant dan waktu pelindian bijih malasit dengan ammonium bikarbonat = Effect of lixiviant concentration and leaching time malachite ore in ammonium bicarbonate

Recovery nikel dari bijih limonite tereduksi oleh leaching amonium bikarbonat = Nickel recovery from reduced limonite ore by ammonium bicarbonat leaching

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

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

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