02248nas a2200241   4500008004100000022001400041245011700055210006900172260000800241300001400249490000800263520142700271653002001698653001701718653001801735653002101753653001701774100002301791700002301814700002101837700002101858856012701879       2022                        eng d  a0008-403400aKinetic study on alkylation of hydroquinone with methanol over SO3H functionalized Bronsted acidic ionic liquids0 aKinetic study on alkylation of hydroquinone with methanol over S  cOCT  a2986-29960 v1003 a<p>
	O-alkylation of a dihydric phenol (i.e., hydroquinone) with methanol in presence of benzoquinone catalyzed by double SO3H functionalized Bronsted acidic ionic liquids (i.e., 1,3-disulphonic acid imidazolium hydrogen sulphate, 1,3-disulphonic acid benzimidazolium hydrogen sulphate, and sulphuric acid) is studied in a batch reactor. The sensitivity of activity and selectivity with reaction time, temperature, speed of agitation, and catalyst loading was examined. The plausible reaction pathways proposed based on the experimental observations and detailed kinetic investigation are performed by assuming a homogeneous reaction phase. The kinetic parameters, such as pre-exponential factor and activation energy, are estimated for both ionic liquids and sulphuric acid by considering all competitive reactions, and comparative results were presented. An extended form of the Arrhenius equation is used to estimate the kinetic parameters for the reaction which showed curvature in lnk against a 1/T plot. The model prediction with the estimated kinetic parameters is in good agreement with the experimental data, which confirmed the model validity in the experimental operating range. It was found that ionic liquid has a potential application in the synthesis of a selective monoalkylated product of hydroquinone. The kinetic analysis performed is found to be useful in the understanding of process behaviour.</p>
10a4-Methoxyphenol10aHydroquinone10aionic liquids10aKinetic analysis10aO-alkylation1 aBhongale, Priyanka1 aAmonkar, Amogh, A.1 aJoshi, Sunil, S.1 aMali, Nilesh, A.  uhttps://library.ncl.res.in/content/kinetic-study-alkylation-hydroquinone-methanol-over-so3h-functionalized-bronsted-acidic