Analisa pengaruh temperatur pelindian terhadap perubahan kadar unsur penyusun gangue mineral pada proses ekstraksi bauksit = The analysis of leaching temperature effect on element content of gangue mineral constituents in bauxite extraction process

Analisis pengaruh konsentrasi NaOH pada proses Bayer terhadap ekstraksi bijih nepheline = Effect of NaOH concentration in Bayer process on extraction of nepheline ore in Bayer process

Studi pengaruh variasi konsentrasi larutan naoh pada proses pelindian naoh yang diikuti pelindian hclo4 terhadap peningkatan kadar niobium, tantalum, dan logam tanah jarang dalam terak timah = The Study of effect concentration variable of naoh solution in naoh leaching followed by hclo4 leaching process to enhance grades of niobium tantalum and rare earth element in tin slag

Pengaruh variasi konsentrasi asam fosfat sebagai larutan lindi setelah proses pelindian NaOH terhadap peningkatan kadar tantalum dan niobium dalam terak timah = Effect variable concentration of phosphoric acid as leaching agent after NaOH leaching process for upgrading tantalum and niobium content in tin slag

Analisa pengaruh ukuran partikel terhadap perubahan kadar unsur penyusun bijih bauksit = Analysis of particle size affection on change of bauxite ore elements