Recovery Logam Li, Ni, Mn, Dan Co Dari Limbah Katoda Baterai Ion Litium Jenis NMC Dengan Metode Hidrometalurgi.

Putri, Annisa Ramadhanti Ririanza (2021) Recovery Logam Li, Ni, Mn, Dan Co Dari Limbah Katoda Baterai Ion Litium Jenis NMC Dengan Metode Hidrometalurgi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Limbah baterai menjadi masalah serius karena sifatnya yang berbahaya bagi lingkungan. Recovery logam yang terkandung dalam baterai bekas merupakan salah satu upaya untuk mengatasi hal tersebut. Pada penelitian ini, proses recovery logam dilakukan dengan metode hidrometalurgi yang meliputi proses leaching, ekstraksi pelarut, proses stripping, dan presipitasi selektif. Penelitian ini bertujuan untuk mengetahui efisiensi recovery logam. Proses leaching dilakukan dengan asam sulfat (H2SO4) dan asam tartrat (C4H6O6) sebagai pelarut diikuti dengan parameter optimum lainnya seperti konsentrasi oksidator (H2O2), rasio S/L, temperatur, dan waktu reaksi. Proses ekstraksi pelarut dilakukan untuk pemisahan ion litium, nikel, mangan, dan kobalt dengan bis(2-ethylhexyl) fosfat (Cyanex-272) sebagai pelarut, sedangkan asam di-isooktil fosfonat (D2EHPA) digunakan untuk pemisahan ion mangan dan kobalt. Kedua proses ektraksi pelarut menghasilkan efisiensi mencapai 99%. Kemudian proses stripping dilakukan dengan pelarut H2SO4, dan dihasilkan efisiensi sebesar 98%. Presipitasi selektif dilakukan untuk pemisahan ion litium dan nikel dengan agen pengendap, dimetil glioksim (DMG), dengan rasio molar DMG terhadap nikel (MRDN) sebesar 2:1. Recovery ion yang dihasilkan berupa Li2SO4, NiCl2, MnSO4, dan CoSO4 dengan efisiensi mencapai 70%. ====================================================================================================== Battery waste is a serious problem because it is harmful to the environment. Metal recovery contained in used batteries is one of the efforts to overcome this. In this study, the metal recovery process was carried out using a hydrometallurgical method which included leaching process, solvent extraction, stripping process, and selective precipitation. This study aims to determine the efficiency of metal recovery. The leaching process was carried out with sulfuric acid (H2SO4) and tartaric acid (C4H6O6) as solvents followed by other optimum parameters such as concentration of oxidizing agent (H2O2), S/L ratio, temperature, and reaction time. The solvent extraction process was carried out for the separation of lithium, nickel, manganese, and cobalt ions with bis(2-ethylhexyl) phosphate (Cyanex-272) as solvent, while di-isooctyl phosphonic acid (D2EHPA) was used for the separation of manganese and cobalt ions. Both solvent extraction processes yielded efficiencies up to 99%. Then the stripping process was carried out with H2SO4 solvent, and the resulting efficiency is 98%. Selective precipitation was carried out for the separation of lithium and nickel ions with the precipitating agent, dimethylglyoxime (DMG), with a molar ratio of DMG to nickel (MRDN) of 2:1. Recovery ions produced in the form of Li2SO4, NiCl2, MnSO4, and CoSO4 with an efficiency of up to 70%.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: baterai NMC, hidrometalurgi, recovery logam, recycling baterai,hydrometallurgy, metals recovery, NMC batteries, recycling batteries.
Subjects: Q Science > QD Chemistry > QD63 Extraction
Q Science > QD Chemistry > QD63.S4 Separation (Technology)
T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User: Annisa Ramadhanti Ririanza Putri
Date Deposited: 23 Aug 2021 15:24
Last Modified: 23 Aug 2021 15:24
URI: https://repository.its.ac.id/id/eprint/90071

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