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Reactivation process of catalyst for recycling hydrolysis of aminonitriles to lactams and use of regenerated catalyst for preparing lactams
Reactivation process of catalyst for recycling hydrolysis of aminonitriles to lactams and use of regenerated catalyst for preparing lactams
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机译:用于将氨基腈水解回收为内酰胺的催化剂的再活化方法以及再生催化剂在制备内酰胺中的用途
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摘要
The present invention relates to a process for regenerating a catalyst for the cyclizing hydrolysis of an aminonitrile for the manufacture of lactams. It relates more particularly to the regeneration of the solid catalysts used in the processes for producing lactams by the cyclizing hydrolysis of aminonitriles. This regeneration process consists in treating the spent catalyst or the catalyst at the end of the cycle at a temperature of between 300° C. and 600° C. with an oxidizing atmosphere.
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