REACTOR FOR MANUFACTURING CAPROLACTAM FROM CYCLOHEXANONOXIME BY MEANS OF BECKMANN REARRANGEMENT Russian patent published in 1994 - IPC

FIELD: chemical technology. SUBSTANCE: reactor for manufacturing caprolactam has internally-mounted coaxial cyclonic mixer with pipe for injecting cyclohexanonoxime provided with radial holes in the zone of nozzle. Cyclone chamber mounted under the mixer is coaxial with it, and the mixer itself has tangential pipe for feeding circulating solution. Oxime feeding pipe is provided with plug in the form of trancated cone tapered downward and secured by its larger base with diameter equal to the diameter of the pipe to the lower end face of the pipe. The smaller cone base is arranged in the zone of the cyclone chamber nozzle. The tapered plug is provided with central through channel. The ratio of the cross- sectional area of the central channel to the sum of areas of the radial holes of the pipe lies within 0.12-0.14. EFFECT: enlarged operating capabilities. 1 dwg