| 摘要 |
This process for the manufacture of norbornene from dicyclopentadiene (DCPD) and ethylene is characterized in that the DCPD is subjected to partial monomerization to CPD by preheating:at a temperature of 140° C. to 240° C.; andunder a pressure of 20 to 300 bar abs., before reacting it with the ethylene;with an ethylene/DCPD molar ratio of 1 to 20;at a temperature of 200° C. to 320° C.;under a pressure of 20 to 300 bar abs.; andwith a residence time of 1 to 10 minutes, under stable reaction conditions between the DCPD, the CPD and the ethylene.
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