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Priority claimed from PCT/EP2004/005340external-prioritypatent/WO2004103963A1/en
Publication of UA81675C2publicationCriticalpatent/UA81675C2/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
The invention relates to a process for preparing caprolactam by Beckmann rearrangement of cyclohexanone oxime I by feeding cyclohexanone oxime to a reaction mixture comprising (i) sulfuric acid (ii) SOand (iii) caprolactam, wherein the SO3 content of the reaction mixture is between 9 and 20 wt.% and the molar ratio M of the reaction mixture defined asis between 1 and 1.4 wherein= quantity of SOin reaction mixture, in= quantity of HSOin reaction mixture, in - mol= quantity of caprolactam in reaction mixture, in mol.
UAA200512401A2003-05-232004-05-17Process for preparing caprolactam by beckmann rearrangement
UA81675C2
(en)