催化作用
化学
哌啶
铜
氟磷灰石
吸附
X射线光电子能谱
核化学
迈克尔反应
无机化学
物理化学
化学工程
有机化学
矿物学
工程类
磷灰石
作者
Rakhi Vishwakarma,C. P. Vinod,Virendra K. Rathod,M. Lakshmi Kantam
标识
DOI:10.1021/acs.iecr.3c01383
摘要
Aza-Michael reaction was successfully carried out by using a copper fluorapatite (CuFAP) catalyst. The reaction of piperidine and cyclohexenone using CuFAP resulted in 70% conversion and 100% selectivity of 3-(piperidin-1-yl)cyclohexan-1-one. A kinetic model was validated by Langmuir–Hinshelwood–Hougen–Watson at varying temperatures, and the absence of mass transfer resistance was verified by the Weisz Prater criterion. The effect of different catalysts, temperature, catalyst loading, solvents, mole ratio of reactants, and stirring speed was studied. The synthesized catalyst was characterized by FTIR, BET nitrogen adsorption–desorption, TEM, EDX, XPS, ICP-MS, and XRD. CuFAP catalyst was found to be stable for up to four cycles with no change in activity.
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