TY - GEN
T1 - Nitration of toluene in a microreactor
AU - Halder, Raghunath
AU - Lee, Woo
AU - Lawal, Adeniyi
AU - Damavarapu, Reddy
PY - 2006
Y1 - 2006
N2 - The nitration of toluene in a microreactor immersed in a constant temperature bath using concentrated nitric acid as the nitrating agent was studied. In the multiphase liquid-liquid nitration of toluene with 90 wt % nitric acid, the mass transfer rate affected the rate of reaction in a conventional reactor. In a microreactor, both mass transfer and intrinsic kinetics affected the reaction rate at lower temperature levels and the reaction rate was more influenced by the mass transfer at higher temperature levels. For this reaction, much higher reaction rate, in orders of magnitude, could be obtained in a microreactor than in the conventional reactors, while simultaneously preventing any temperature runaway due to its superior heat and mass transfer coefficients. However, with nitric acid alone as the nitrating agent, the yield of the nitrotoluenes was low due to the adverse dependency of water formed in the reaction on the nitronium ion concentration. This is an abstract of paper presented at the AIChE Spring National Meeting (Orlando, FL 4/24-26/2006).
AB - The nitration of toluene in a microreactor immersed in a constant temperature bath using concentrated nitric acid as the nitrating agent was studied. In the multiphase liquid-liquid nitration of toluene with 90 wt % nitric acid, the mass transfer rate affected the rate of reaction in a conventional reactor. In a microreactor, both mass transfer and intrinsic kinetics affected the reaction rate at lower temperature levels and the reaction rate was more influenced by the mass transfer at higher temperature levels. For this reaction, much higher reaction rate, in orders of magnitude, could be obtained in a microreactor than in the conventional reactors, while simultaneously preventing any temperature runaway due to its superior heat and mass transfer coefficients. However, with nitric acid alone as the nitrating agent, the yield of the nitrotoluenes was low due to the adverse dependency of water formed in the reaction on the nitronium ion concentration. This is an abstract of paper presented at the AIChE Spring National Meeting (Orlando, FL 4/24-26/2006).
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M3 - Conference contribution
AN - SCOPUS:56549091321
SN - 0816910057
SN - 9780816910052
T3 - 2006 AIChE Spring Annual Meeting
BT - 2006 AIChE Spring Annual Meeting
T2 - 2006 AIChE Spring National Meeting
Y2 - 23 April 2006 through 27 April 2006
ER -