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We report here that [Rh(CO) 4 ] − (either as a K + , Cs + or PPN + salt, PPN + = (PPh 3 ) 2 N + ) is a very active catalyst for the reduction of nitrobenzene to aniline by CO/H 2 O in water as solvent. No other ligand, except for CO itself, has to be added. The addition of bases, both inorganic or organic, has a negative...
The reduction of NO by CO was studied in a tubular reactor filled with small pieces of quartz glass tubing. The influence of residence time, concentration of CO and temperature on the reaction was investigated. The reaction rate is first-order with respect to both NO and CO. The rate constant, determined over the temperature range 973-1123 K and for a total surface-to-volume ratio of the filled...
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