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All Journal Indonesian Journal of Chemical Science INSIST (International Series on Interdisciplinary Research)
Sulistiowati, Dwi Derti
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Kajian Pengaruh Konsentrasi Zeolit Alam Lampung pada Hidrasi Terpentin Menjadi α-Terpineol Sulistiowati, Dwi Derti; Hermiyati, Ria Putri; Utami, Herti; Ginting, Simparmin Br.
Indonesian Journal of Chemical Science Vol 6 No 2 (2017)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v6i2.16795

Abstract

Minyak terpentin Indonesia mengandung 65-85% α-pinene, kurang 1% camphene, 1-3% ß-pinene, 10-18% 3-carene dan 1-3% limonene. Untuk meningkatkan nilai ekonomisnya, α-pinena dapat dihidrasi menggunakan katalis asam menjadi α-terpineol. Penggunaan katalis heterogen berupa zeolit alam dapat menjadi alternatif baru sebagai pengganti katalis homogen. Tujuan dari penelitian ini adalah mengetahui pengaruh konsentrasi katalis Zeolit Alam Lampung (ZAL) dan waktu reaksi optimal yang menghasilkan konversi tertinggi pada reaksi hidrasi terpentin menjadi α-terpineol. ZAL sebelum digunakan sebagai katalis dilakukan aktivasi secara kimia dan fisika untuk menghilangkan pengotor dan meningkatkan keasaman. Reaksi hidrasi dilakukan menggunakan variasi konsentrasi katalis sebesar 5%, 10% dan 15% dan variasi waktu reaksi 60 menit, 120 menit dan 180 menit. Reaksi ini dilakukan dalam labu leher tiga pada suhu 70oC dengan 20 mL terpentin, 109 mL aquadest dan 80 mL isopropil alkohol. Dari hasil penelitian diperoleh konversi yang tertinggi pada konsentrasi katalis 15% dan waktu reaksi optimal 180 menit adalah 4,875%.
The Effect Catalyst Natural Zeolite of Lampung On The Synthesis Of α-Terpineol From Turpentine Utami, Herti; Ginting, Simparmin Br.; Sulistiowati, Dwi Derti; Hermiyati, Ria Putri
International Series on Interdisciplinary Science and Technology Vol. 2 No. 2 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ins.v2i2.87

Abstract

The major component of turpentine is α-pinene. Alpha pinene can be hydrated using an acid catalyst to produce α-terpineol. It can be used as a perfume, anti -insect, and disinfectants. The using of heterogeneous catalysts as natural zeolite can be a new alternative to replacehomogeneous catalysts. The purpose of this study was to determine the effect of zeolite catalysts and the reaction time which resulting the highest conversion on hydration reactions of turpentine to α-terpineol. Parameters were the effect of catalyst concentration of (5%, 10% and 15%) and the reaction time (60 minutes, 120 minutes and 180 minutes). The turpentine, aquadest and isopropyl alcohol were reacted in the three neck flask at the temperature of 70°C. The result of this study showed that the best condition the hydration of turpentine α-terpineol was achieced at 15% catalyst concentration and the reaction time of 180 minutes. The convertion was obtained to be 4.875%.Keywords— Turpentine, Hydration, Alpha terpineol, Catalys,Natural Zeolite.
Co-Authors Hermiyati, Ria Putri Herti Utami Simparmin br Ginting