Catalytic activity of P2O5-natural zeolite on hydration reaction of turpentine into α-terpineol

13th Joint Conference on Chemistry

Wijayati, Nanik^1 ; Hidayah, N.^1 ; Mursiti, Sri^1 ; Kusumastuti, Ella^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Semarang, D6 Building, Sekaran Campus, Gunungpati, Semarang, Indonesia^1

关键词: Crystalline structure;    Functional group analysis;    Gravimetric methods;    Heterogeneous catalyst;    Hydration reaction;    Natural zeolites;    Optimum conditions;    Turpentine oil;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/509/1/012093/pdf
DOI  :  10.1088/1757-899X/509/1/012093

来源: IOP

【 摘 要 】

Alpha-pinene compound can be derived into α-terpineol. The high content of this compound in turpentine oil will increase their selling value. Formation of α-terpineol by turpentine hydration reaction occurs with the aid of a catalyst. The catalyst can be derived from combination of homogenous and heterogeneous catalyst, namely phosphoric acid and activated natural zeolite (P2O5-natural zeolite). Characterization of P2O5-natural zeolite catalyst includes crystallinity analysis with XRD, functional group analysis with FTIR and acidity analysis with the gravimetric method. Hydration reaction was carried out in a batch reactor with variations of time (120, 240, 360, 480 minutes) and catalyst types (H3PO4, H-natural zeolite, P2O5-natural zeolite). Hydration reaction product were analysed using FT-IR, GC, and GC-MS. The result show that modification of catalyst by developing P2O5 is not significantly affected the crystalline structure of the H-natural zeolite. Hydration reaction reach optimum condition on the use of catalyst with H3PO4 10% and P2O5-natural zeolite 40%, while reaction time 480 minutes' yield α-terpineol selectivity of 61,81% and 5,25% respectively.