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All Journal Indonesian Journal of Applied Sciences Jurnal Sains Materi Indonesia Jurnal Informatika dan Teknik Elektro Terapan Jurnal Zeolit Indonesia Jurnal Ilmiah Teknologi Pertanian Agrotechno Chimica et Natura Acta Indonesian Mining Journal JOURNAL OF SCIENCE AND SOCIAL RESEARCH Journal of Computer System and Informatics (JoSYC) Money: Journal of Financial and Islamic Banking Journal of Technology Informatics and Engineering Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) Indonesian Mining Journal al Kimiya : Jurnal Ilmu Kimia dan Terapan
Juliandri Juliandri
Department Of Chemistry Faculty Of Mathematics & Natural Science Padjadjaran University Jalan Raya Bandung Sumedang Km. 21 Phone/Fax. (+6222) 7794391
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences

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Understanding The Role of Diffusion in The Separation of Rare Earth Elements in Water-n-hexane Systems: A Molecular Dynamics Simulation Study Hardianto, Ari; Janitra, Regaputra Satria; Fauzi, Muhammad Ryan; Juliandri, Juliandri; Anggraeni, Anni; Soedjanaatmadja, Ukun Mochammad Syukur
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 10 No. 2 (2023): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v10i2.30680

Abstract

Liquid-liquid extraction is one of the methods for separating rare earth elements (REE) in the presence of an extractant. The separation of REE ions, complex with an extractant, involves interfacial migrations that are influenced by the diffusion of the respective ions. Therefore, we performed molecular dynamics simulations on REE ions (La3+, Sm3+, Eu3+, Gd3+, and Tb3+) in a water-n-hexane system to determine if each ion exhibited a distinct diffusion coefficient. By employing molecular dynamics simulations, we calculated diffusion coefficients for these ions based on the Einstein relation. The diffusion coefficients for La3+, Sm3+, Eu3+, Gd3+, and Tb3+ were found to be 4.21×10–6, and 3.96×10–6, 4.57×10–6, 4.17×10–6, and 5.19×10–6 cm2/s, respectively. However, statistical analysis via the Kruskal-Wallis test revealed no significant variance in the diffusion coefficients (p-value greater than 0.05), indicating that diffusion is not a rate-limiting factor in REE separation. The findings suggest that effective mixing during extraction can eliminate the role of diffusion as a differentiating factor in REE separation. Overall, this study offers critical insights into optimizing REE extraction processes
Co-Authors Anni Anggraeni, Anni Ari Hardianto Arpizal Atiek Rostika Noviyanti Cindy Chintya Aulia Telaumbanua Dhony Hermanto Dian Kurnia Diana Rakhmawaty Eddy Eddy, Diana Rakhmawaty Fajar Firmansyah Fauzi, Muhammad Ryan Ferli S. Irwansyah Ferli S. Irwansyah, Ferli S. Firmansyah, Fajar Harahap, Sahyunan Haryono Haryono Iman Rahayu IWAN HASTIAWAN Iwan Hastiawan Iwan Hastiawan Iwan Hastiawan Janitra, Regaputra Satria Muhammad Fajar Muhammad Rizki N.T. PONGAJOW Nicolin Tirza Pongajow Nurul Ismillayli R. Ukun M.S. Soedjanaatmadja Rifki Septawendar Rifki Septawendar Rochmad K Sanjaya Rustaman Rustaman Sanjaya, Rochmad K Siahaan, Muhammad Donni Lesmana Siregar, Zailani Amir Soewanto Rahardjo Soewanto Rahardjo, Soewanto Solihudin Solihudin Sufaat, Imam TATI NURHAYATI Titin Siti Fatimah Titin Siti Fatimah Wahyu, Wadri