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 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 Penambahan Aditif Na2CO3 terhadap Kadar Nikel dalam Pengolahan Bijih Limonit Menggunakan Metode Roasting = Study of the Effect of Na2CO3 Addition to Nickel Content in Processing Limonite Ore Using Roasting Method

Studi pengaruh konsentrasi NaOH pada pelindian limonit terhadap kadar akhir nikel dan kobalt = Study on the effect of NaOH concentration on limonite leaching toward final contents of nickel and cobalt

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