Title: Method and reactor for making norbornene
Application Number: 98813427 Application Date: 1998.11.23
Publication Number: 1284052 Publication Date: 2001.02.14
Approval Pub. Date: 2005.07.20 Granted Pub. Date: 2005.07.20
International Classifi-cation: C07C13/42;C07C2/50;C07C4/22;B01J19/26
Applicant(s) Name: Elf Atochem S.A. Address:
Inventor(s) Name: R. Kotwica;A. Marbach
Attorney & Agent: lu xinhua
Abstract:
    The invention relates to a method for making norbornene from dicyclopentadiene (DPCD) and ethylene characterised in that it consists in subjecting DCPD to partial monomerisation into CPD by pre-heating: at a temperature between 140 DEG C and 240 DEG C; and under pressure from 20 to 300 bars abs., before reacting it with ethylene with an ethylene/DCPD mol ratio of 1 to 20, at a temperature between 200 DEG C and 320 DEG C; under pressure from 20 to 300 bars abs.; and a retention time of 1 to 10 minutes, in stable reaction conditions between DCPD, CPD and ethylene.
Time: 6