Next Article in Journal
Antibacterial and EGFR-Tyrosine Kinase Inhibitory Activities of Polyhydroxylated Xanthones from Garcinia succifolia
Next Article in Special Issue
Proton Adsorption Selectivity of Zeolites in Aqueous Media: Effect of Si/Al Ratio of Zeolites
Previous Article in Journal
Maslinic Acid Induces Mitochondrial Apoptosis and Suppresses HIF-1α Expression in A549 Lung Cancer Cells under Normoxic and Hypoxic Conditions
Open AccessArticle

The Epoxidation of Limonene over the TS-1 and Ti-SBA-15 Catalysts

Institute of Organic Chemical Technology, West Pomeranian University of Technology Szczecin, Pułaskiego 10, Szczecin 70-322, Poland
Molecules 2014, 19(12), 19907-19922;
Received: 23 October 2014 / Revised: 19 November 2014 / Accepted: 21 November 2014 / Published: 28 November 2014
(This article belongs to the Special Issue Zeolite Chemistry)
Limonene belongs to a group of very important intermediates used in the production of fine chemicals. This monoterpene compound can be obtained from peels of oranges or lemon which are a (biomass) waste from the orange juice industry. Thus, limonene is a renewable, easy available and a relatively cheap compound. This work presents preliminary studies on the process of limonene epoxidation over zeolite type catalysts such as: TS-1 and Ti-SBA-15. In these studies methanol was used as a solvent and as an oxidizing agent a 60 wt % hydrogen peroxide solution was applied. The activity of each catalyst was investigated for four chosen temperatures (0 °C, 40 °C, 80 °C and 120 °C). The reaction time was changed from 0.5 to 24 h. For each catalyst the most beneficial conditions (the appropriate temperature and the reaction time) have been established. The obtained results were compared and the most active catalyst was chosen. These studies have also shown different possible ways of limonene transformation, not only in the direction of 1,2-epoxylimonene and its corresponding diol, but also in direction of carveol, carvone and perillyl alcohol—compounds with a lot of applications. The possible mechanisms of formation of the allylic oxidation products were proposed. View Full-Text
Keywords: limonene epoxidation; 1,2-epoxylimonene, TS-1; Ti-SBA-15; hydrogen peroxide, biomass limonene epoxidation; 1,2-epoxylimonene, TS-1; Ti-SBA-15; hydrogen peroxide, biomass
Show Figures

Figure 1

MDPI and ACS Style

Wróblewska, A. The Epoxidation of Limonene over the TS-1 and Ti-SBA-15 Catalysts. Molecules 2014, 19, 19907-19922.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Search more from Scilit
Back to TopTop