Abstract
The influence of hydrodynamic mode of mixing a copper-ammonium-carbonate slurry containing aluminosilica support on the chemical and phase composition of the active component (AC) precursor of the catalyst for dehydrogenation of cyclohexanol in the production of caprolactam was studied. XPS, DTA and adsorption techniques were used to establish that, under conditions of the advanced turbulent mode, the precursor is mainly deposited in the form of nanostructured hydroxocarbonates anchored tightly to the support. The lab-scale technology was scaled-up to industrial level. Properties of the new copper catalyst were studied to reveal that it is not inferior in the selectivity to the best known industrial (commercial) catalysts, but superior to them in the activity and thermostability.
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