Research article
Vol 2 No 2 (2008): Volume 2, Number 2, 2008
Pemodelan matematis reaksi oksidasi katalitik fero sulfat menjadi feri sulfat
Jurusan Teknik Kimia, Fakultas Teknologi Industri Universitas Muslim Indonesia Jl. Urip Sumoharjo KM. 05, Makassar
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Gadjah mada Jl Grafika No 2, Yogyakarta
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.
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