Patent ID: 6075174
Filing Date: 2000-06-13
Classification: B01J,C07C,Y02P

Abstract:
A process for recovering BF.sub.3 from a BF.sub.3 /promoter complex catalyzed .alpha.-olefin oligomerization product stream, which process comprises:(a) thermally cracking at least a portion of the complex in the product stream to yield gaseous BF.sub.3 wherein said cracking is conducted at a temperature below 80.degree. C.; and(b) contacting gaseous BF.sub.3 from (a) with a liquid .alpha.-olefin stream having a temperature within the range of from about 0 to about 40.degree. C., the liquid .alpha.-olefin stream containing from about 0.05 to about 1.5 wt % promoter.