SYNTHESIS AND PERFORMANCE OF 4-SEBAKOILBIS(1-FENIL-3METIL-5- PIRAZOLON)(H2SBBP) AND 4-ADIPOILBIS(1-FENIL-3METIL-5-PIRAZOLON) (H2ADBP) ON THE DISTRIBUTION OF LA(III) IN LIQUID-LIQUID EXTRACTION

• Main Author: Masyithah
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/35271
• Institution: Institut Teknologi Bandung

Development of current technology have encouraged the demand of Rare Earth Elements (REEs), especially in industrial sector. This has an impact on the utilization of pirazolons compound and their derivates for the separation of REEs by solvent extraction. Two compounds of pyrazolone derivates namely 4-sebakoilbis(1-fenil-3metil-5-pirazolon) (H2SbBP) and 4-adipoilbis(1-fenil-3metil-5-pirazolon) (H2AdBP) have been synthesizen. H2SbBP is a yellow compound and its melting point is 127,8 - 132ºC meanwhile H2AdBP is a yellow – brown compound with melting point of 190,3ºC-197,6ºC. Both of these compounds have a very good solubility in chloroform. The best H2SbBP concentration in the extraction of La(III) is between 0,0007 M – 0,0050 M, while the best H2AdBP concentration is between 0,0108 M – 0,0151 M. The best pH value in the extraction of La(III) with H2AdBP on pH between 5 - 6, while H2SbBP performance increases with increasing pH. The highest value of separation factor (?) between Gd(III) obtained when H2SbBP was extraction with pH 6,2.