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Citation: Li Jingming, Yang Bo, Zhou Guilin, Xie Xiaofan, Li Guijia. Promoting Effects of Chromium for Cu-Cr₂O₃ Catalytic Synthesis of Acrylamide[J]. Chinese Journal of Applied Chemistry, ;1995, 12(6): 89-91. shu

Promoting Effects of Chromium for Cu-Cr₂O₃ Catalytic Synthesis of Acrylamide

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

The mechanism of promoting effects of chromium for Cu-Cr₂O₃ catalytie synthesis of acrylamide was investigated by the measurements of specific surface area,bulk density of catalysts,optical microscope photograms,SEM,XPS,DTA-TG and oxidaton kinetics of the catalysts. Addition of 0.5 atom percent of chromium to the reduced copper catalyst in-creased the conversion of acrylonitrile from 77% to 98%, specific surface area from 5.7 to 11.3m²/g and oxidation rate of the catalyst. The mechanism of nucleophilic attack of water activated by catalyst to carbon atom of C-N bond of acrylonitrile was suggested.
- Cu-Cr₂O₃ catalyst,
- acrylonitrile,
- acrylamide,
- catalytic hydration,
- mechanism of catalysis
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Promoting Effects of Chromium for Cu-Cr₂O₃ Catalytic Synthesis of Acrylamide