Andiyan Yuwono
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Gadjah mada Jl Grafika No 2, Yogyakarta

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Pemodelan matematis reaksi oksidasi katalitik fero sulfat menjadi feri sulfat Takdir Syarif; Andiyan Yuwono
Jurnal Rekayasa Proses Vol 2 No 2 (2008): Volume 2, Number 2, 2008
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.555

Abstract

Iron was dissolved in a sulfuric acid to form a concentrated ferrous sulphate (FeSO4) solution. This research was conducted to form ferric sulfate by catalytic oxidation of ferrous sulfate using manganese dioxide as catalyst. The system was a three-phase heterogeneous reaction with a quite complex kinetics The present study aimed at developing a mathematical modeling of three-phase reaction kinetics that involved gas, liquid and solid. Oxidation was undertaken in an isothermal isobaric condition in a three-neck flask reactor. The experiment was conducted in a temperature range of 323 to 353 K with a catalyst concentration of 1.7 g/L. The results indicated that the reaction kinetics could be approached with a quasi steady state model and the chemical reaction on the catalyst surface was the determining step.