Patent Details

Patent ID: CN201010116095.5

One kind of cyclohexanone oxime by Beckmann rearrangement continuous production of caprolactam

Description: A cyclohexanone oxime by Beckmann rearrangement caprolactam continuous preparation. By a circulation pump, a circulation cooling the reaction system, and the ripening reaction, the mixing reactor constituted, characterized in that the solvent is vaporized by heat absorption and heat storage material with a combination of the rearrangement reaction is removed instantaneously released heat. Regenerative heat the inert solvent and the binding material is endothermic vaporization temperature macroscopic reaction temperature can be controlled, while the endothermic vaporization of the inert solvent, the reaction temperature may be too high to ensure a local, can be obtained in a high yield, the reaction product of high quality, and fuming a small amount of sulfuric acid, low energy consumption, stable operation.

Patent Details:

DOI: C07D223 / 10 (2006.01) I; C07D201 / 06 (2006.01) I