A continuous process for the production of 2,2,6,6-tetramethylpiperidin-4-ol catalyzed by Cu-Cr/gamma-Al2O3

作者：Fan Xiaopeng; Liu Shuai; Yan Xilong; Du Xiaobao; Chen Ligong^*

来源：Catalysis Communications, 2010, 11(11): 960-963.

DOI：10.1016/j.catcom.2010.04.012

• 2,2,6,6-tetramethylpiperidin-4-ol
• 2,2,6,6-tetramethylpiperidin-4-one
• Hydrogenation
• Cu-Cr/gamma-Al2O3

A continuous process was established for the production of 2,2,6,6-tetramethylpiperidin-4-ol over Cu-Cr/gamma-Al2O3 in a fixed-bed reactor. The catalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy and temperature-programmed reduction. Cu-0 was believed to be the active site for the hydrogenation, and the doped chromium was supposed to exert a positive impact on the dispersion of active species. The catalyst and parameters of hydrogenation were optimized. Thus, 2,2,6,6-tetramethylpiperidin-4-ol was obtained in the yield of 90% from 2,2,6,6-tetramethylpiperidin-4-one (purity, 95%) under the optimum reaction conditions.

• 出版日期2010-6-10
• 单位天津大学