关键词: 催化剂, 分子筛, 制备, 钛硅分子筛, 环己酮肟, 氨肟化

Abstract: The ammoximation of cyclohexanone has become an inevitable trend of technological development of producing caprolactam，and the preparation of Titanium Silicalite-1（TS-1） has become the most important technology of the cyclohexanone ammoximation. However，it is rather expensive and difficult to prepare TS-1，which restricts the industrial production of caprolactam and needs further improvement. Focusing on this issue，this paper reviews the preparation of TS-1，including modified TS-1，TS-1 with large particle diameter，TS-1 compounds，the shaping of TS-1，as well as other technology related to the preparation of TS-1. The future development of the cyclohexanone ammoximation shall be aimed to improve the catalytic activity of TS-1，solve the recycling of TS-1 on an industrial scale，improve the stability and yield of TS-1，and reduce the costs.

Key words: catalyst, moleclar sieves, preparation, Titanium Silicalite-1（TS-1）, cyclohexanoneoxime, ammoximation