In this paper, dimethyl carbonate was selected as the solvent for the cyclohexanone ammoximation over Ti-MWW. Under the optimized reaction conditions, high conversion of cyclohexanone (99.8%) and high selectivity to oxime (99.6%) were achieved. The results of reuse of the catalyst showed that the Ti-MWW in this reaction system had better stability. Though the deactivation of the catalyst occurred after being used five times, the selectivity to cyclohexanone oxime was still kept above 99.9%, and calcining could easily recover catalytic activity. This work may provide a more environmentally benign solution for the industry production of cyclohexanone oxime.

在本文中，选择碳酸二甲酯作为Ti-MWW上环己酮氨化反应的溶剂。在优化的反应条件下，实现了环己酮的高转化率（99.8％）和对肟的高选择性（99.6％）。催化剂再利用的结果表明，该反应体系中的Ti-MWW具有较好的稳定性。尽管在使用五次后催化剂失活了，但对环己酮肟的选择性仍保持在99.9％以上，并且煅烧可以容易地恢复催化活性。这项工作可以为环己酮肟的工业生产提供更环保的解决方案。