01568nas a2200241   4500008004100000022001400041245007000055210006900125260000800194300001500202490000600217520081000223653002801033653001901061653001101080653001401091653002201105100002301127700001801150700002501168700003201193856010101225       2023                        eng d  a2365-654900aImine oxidation catalyzed by zinc hydroxyapatite: kinetic studies0 aImine oxidation catalyzed by zinc hydroxyapatite kinetic studies  cMAY  ae2022035030 v83 a<p>
	The synthesis of N,N-diphenylformamide from N-benzylideneaniline and urea hydrogen peroxide is investigated using a zinc hydroxyapatite (ZnHAP) catalyst. It was found that the catalyst resulted in the highest activity of 91 % conversion and 40 % selectivity at 130 degrees C in 2 h. A kinetic model was validated by Langmuir-Hinshelwood-Hougen-Watson (LHHW) at different temperatures and the absence of mass transfer resistance was proved by the Weisz Prater criterion. Effect of different catalysts, catalyst loading, temperature, mole-ratio, and speed of stirring was studied. The as-synthesized catalyst is characterized by FTIR, BET nitrogen adsorption-desorption, TEM, EDX, TPD-NH3, XPS, ICP-MS and XRD. ZnHAP catalyst was found to be stable up to three recycles with no loss in activity.</p>
10aheterogeneous catalysis10ahydroxyapatite10aimines10aOxidation10aReaction kinetics1 aVishwakarma, Rakhi1 aVinod, C., P.1 aRathod, Virendra, K.1 aKantam, Mannepalli, Lakshmi  uhttps://library.ncl.res.in/content/imine-oxidation-catalyzed-zinc-hydroxyapatite-kinetic-studies