EKSTRAKSI BERILIUM (II) DARI BIJIH YANG . MENGANDUNG ILLITE, CLINOCHLORE DAN KUARSA DENGAN ASETILASETON SEBAGAI PENGOMPLEKS

• Main Author: Nurmansari, Radna
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/1672
• Institution: Institut Teknologi Bandung

The extraction of beryllium (II) has been done with acetylacetone as a complexing agent. The optimum condition was used to separate beryllium (II) from the mixture of illite, clinochlore and quartz ores which content iron and aluminium in particularly. The optimum pH was 7 to extract 25 mL beryllium (II) 25 ppm and extraction time was 6 minutes. The used of aqueous phase volume was 25 mL and chloroform organic phase was 15 mL would give the optimum of percent extraction with addition 2 mL acetylacetone 15 %. Beryllium extraction from the artificial sample which mixture of beryllium, iron and aluminium with mole ratio of beryllium to iron and aluminium was 1:1:1 until 1:6:6 have given close to 100 % extraction of beryllium. The variation sample ores volumes which content illite, clinochlore and quartz compounds with addition of standard beryllium 500 ppm with variation volumes was 4, 3 and 5 mL would give percent extraction of beryllium close to 100 %. Chloroform was used as an organic phase could be reused for the- next extraction of beryllium. The ability of chloroform to extract beryllium to organic phase decreased after three