PENENTUAN KONDISI OPTIMUM AKTIVITAS KATALITIK MANGAN(II) YANG DIGRAFTING PADA SILIKA MODIFIKASI

Abstract: Catalyst is a compound that is widely used in industry to synthesize chemicals. In this work, a catalyst namely Mn(II)-acetonitrile immobilized on silica modifications have been successfully synthesized and applied as catalyst in transesterification of fried oil at its optimum conditions (catalyst concentration (% w/w)), speed of stirring and time reaction). The modified silica was characterized by Fourier Transform Infra Red (FT-IR) and Nano-Laser Particle Size Analyzer (NL-PSA) while Atomic Absorption Spectrophotometer (AAS) was used to determine the metal loading and leaching of the grafted sample. Transesterfification products were analyzed by Gas Chromatography-Mass Spectroscopy (GC-MS). Based on NL-PSA measurement, particle size of silica and its modified form showed dominantly around 100 μm. FromAAS analysis, loading and leaching metal values ​​are 3.472% and 2.218%, respectively. The optimum conditions of the catalyst was to be 0.5% catalyst concentration, 100 rpm of stirring speed and 5 hours reaction time.

Keywords: Modified silica, Catalyst, Transesterification, Methyl Ester

Penulis: Noerma Sari FN, Syukri, Zulhadjri

Kode Jurnal: jpkimiadd130092

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