The Acid Catalyzed Reaction of α-Pinene Over Y-Zeolite

https://doi.org/10.22146/ijc.21327

Nanik Wijayati(1*), Harno Dwi Pranowo(2), Jumina Jumina(3), Triyono Triyono(4)

(1) Department of Chemistry, State University of Semarang, Jl. Raya Sekaran Gunungpati Semarang 50229
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(4) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(*) Corresponding Author

Abstract


The hydration of α-pinene has been studied in the presence of Y-zeolite (Si/Al = 2.89) as a solid acid catalyst. The reaction was performed in batch reactor in isopropyl alcohol at various temperature and reaction time with magnetic stirrer. The acid catalyst hydration reaction of a-pinene yields a complex mixture of monoterpenes, alcohols and hydrocarbons. The selectivity of α-terpineol (the monocyclic alcohol) as main product was 59.20% with a conversion of 83.83% and the non alcoholic as the isomerization co-product as 30% after 60 min at 65 °C. The conversion and selectivity to α-terpineol increase significantly with in increase in temperature and reaction times.

Keywords


Y-Zeolite; α–pinene; α terpineol; hydration

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DOI: https://doi.org/10.22146/ijc.21327

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