Esterification of Benzoic Acid with 2-Ethylhexanol in a Microwave Stirred-Tank Reactor was written by Pipus, G.;Plazl, I.;Koloini, T.. And the article was included in Industrial & Engineering Chemistry Research in 2002.Computed Properties of C15H22O2 The following contents are mentioned in the article:
A microwave applicator with a 2.45-GHz magnetron generator, which provides 460 W of output power, and waveguides to a stirred-tank reactor with a full volume of 500 mL was designed. The microwave reactor operates at high pressure and high temperature Esterification of benzoic acid with 2-ethylhexanol was chosen as the model reaction. The esterification was homogeneously catalyzed with sulfuric acid and para-toluene sulfonic acid. As heterogeneous catalysts, Cs2.5H0.5PW12O40, sulfated ZrO2, Fe2(SO4)3, and montmorillonite KSF were used. For the same operating conditions, the rate of esterification was concluded to be the same in both the microwave reactor and conventional exptl. setups. The results show that homogeneous catalysts are more effective than heterogeneous catalysts. Fe2(SO4)3 was the most effective catalyst among the solid catalysts tested. The conversions in the microwave stirred-tank reactor were in agreement with the conversions predicted on the basis of the kinetic parameters obtained under conventional heating. High-pressure and high-temperature operating conditions allowed the reaction rate of esterification to be greatly increased. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Computed Properties of C15H22O2).
2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Computed Properties of C15H22O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics