ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Selective chlorination of acetone in the gas phase

J. Markoš, Ľ. Jelemenský, M. Šóoš, and V. Čamaj

Department of Chemical and Biochemical Engineering, Faculty of Chemical Technology, Slovak University of Technology, SK-812 37 Bratislava

E-mail: markos@cvt.stuba.sk

Abstract: The aim of this paper is to describe the principal chemical reactions by an appropriate kinetic model, and to determine parameters of this model by means of kinetic data obtained in a continuous isothermal stirred reactor. The reactions of chlorination of acetone are very fast. Chlorine reacts completely, its outflow concentration is equal to zero and is not dependent on the temperature and the inlet, acetone/chlorine mole ratio. Maximum selectivity is reached for low temperature, below 55°C, a higher temperature causes a decrease in the selectivity. Also a high acetone/chlorine mole ratio maximizes the selectivity of the process, the optimal ratio is ranging from 10 to 15. A further increase in this value does not influence the selectivity, on the contrary, it causes a decrease in both conversion and yield of acetone. In practice it means that there is a large amount of unreacted acetone in the outlet flow from the reactor, which has to be recycled back into the reactor after separation of the reaction products.

Full paper in Portable Document Format: 536a349.pdf

Chemical Papers 53 (6) 349–356 (1999)