摘要
Catalyst plays an important role in the dehydration of N-（hydroxylethyl）pyrrolidone （NHP） to prepare N-vinyl-pyrrolidone （NVP）. At present, NVP yield is only about 30% on commercial ZrO2 catalyst. A coupled precipitation and solid dispersion technique was designed to prepare the nano-ZrO2 catalyst, in which rare earth metal oxides （REOx） was used as electronic promoter. The results indicated that the catalyst doped REOx （S-1.0） exhibits the optimum performance of NHP dehydration at moderate conditions. NHP conversion and NVP selectivity are respectively 97.0%, 82.3%. Of special interest is that the indexes of the catalyst （S-1.0-1.0） are up to 98.4% and 89.2% respectively. Furthermore, this catalyst bears the good stability. It means that nano-ZrO2 doped REOx catalyst might be a potential commercial catalyst for the NHP dehydration.
催化剂在 N-( 氢氧根乙醇) 的脱水起一个重要作用 pyrrolidone (NHP ) 到准备 N-vinyl-pyrrolidone (NVP ) 。目前， NVP 产量仅仅在商业 ZrO2 催化剂上是大约 30% 。A coupled 降水和固态分散体技术被设计准备 nano-ZrO2 催化剂，在稀土元素，金属氧化物(REOx ) 被用作电子倡导者。结果显示催化剂做了 REOx (S-1.0 ) 以中等条件展出 NHP 脱水的最佳性能。NHP 变换和 NVP 选择是分别地 97.0% ， 82.3% 。特殊兴趣中是催化剂(S-1.0-1.0 ) 的索引分别地直到 98.4% 和 89.2% 。而且，这催化剂忍受好稳定性。它意味着 nano-ZrO2 做了 REOx 催化剂力量是为 NHP 脱水的潜在的商品催化剂。
