Microsphere Silicate-1 molecular sieve catalyst and preparation method thereof, and caprolactam preparation method

The present invention relates to a microsphere Silicate-1 molecular sieve catalyst containing a trace amount of metal ions, and a preparation method thereof, and a method for preparing caprolactam from cyclohexanone oxime. According to the present invention, based on the weight of the dry base of the catalyst, the catalyst comprises 70-95 wt% of a Silicate-1 molecular sieve catalyst containing a trace amount of metal ions, and 5-30 wt% of a binder; the catalyst has a particle size of 20-300 [mu]m and a wear index K of less than 8; the Silicate-1 molecular sieve has a BET specific surface areaof 400-500 m /g and a weight ratio of silicon oxide to metal ions of (5000-200000):1; and the catalyst has the low wear index, can be used for the vapor phase Beckmann rearrangement reaction of cyclohexanone oxime in a fluidized bed process, and can effectively increase the selectivity of caprolactam. 本公开涉及一种含微量金属离子的微球Silicate-1分子筛催化剂及其制备方法和由环己酮肟制备己内酰胺的方法，以催化剂的干基重量为基准，该催化剂包括以干基重量计70～95重量％的含有微量金属离子的Silicate-1分子筛，和5～30重量％的粘