KINETIKA REAKSI OKSIDASI KATALITIK FERO SULFAT DARI LIMBAH BESI DALAM REAKTOR LULUHAN

Hary Sulistyo; Muhammad Fadjri; Nuryoto Nuryoto

doi:10.14710/reaktor.13.2.67-73

DOI: https://doi.org/10.14710/reaktor.13.2.67-73

KINETIKA REAKSI OKSIDASI KATALITIK FERO SULFAT DARI LIMBAH BESI DALAM REAKTOR LULUHAN

*Hary Sulistyo - Jurusan Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada, Indonesia

Muhammad Fadjri - 1Jurusan Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada, Indonesia

Nuryoto Nuryoto - Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa, Indonesia

Published: 4 Oct 2010.

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Abstract

Limbah besi yang berupa serbuk direaksikan dengan asam sulfat membentuk larutan fero sulfat. Larutan fero sulfat dapat dioksidasi menjadi feri sulfat. Oksidasi dijalankan dalam reaktor drift pada tekanan dan suhu tetap. Percobaan dilakukan pada kisaran suhu 323K sampai 353K dan konsentrasi katalisator dari 1,7 sampai 6,7 g/L, waktu reaksi 150 menit pada tekanan atmosferis. Nilai konversi tertinggi fero sulfat menjadi feri sulfat yang diperoleh 39,5%. Nilai koefisien perpindahan massa gas ke cairan dan cairan ke permukaan padatan berturut-turut 37,18 cm/s dan 180 cm/s. Hubungan antara konstante kecepatan reaksi permukaan dengan suhu dapat dinyatakan dalam bentuk persamaan Arrhenius, k = 2,8092x10⁷exp(-8794/RT). Hasil penelitian yang diperoleh sesuai dengan data di pustaka dan kinetika reaksi ditentukan oleh gabungan antara perpindahan massa gas ke cairan dan reaksi pada permukaan katalisator.

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Keywords: feri sulfat, kinetika, limbah besi, oksidasi, reaktor drift

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Section: Research Article

Language : EN

In Volume 13, Nomor 2, Desember 2010

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