METHOD OF REMOVING AND RECOVERING BORON TRIFLUORIDE WITH METAL FLUORIDE AND PROCESS FOR POLYOLEFIN PRODUCTION USING THE SAME

摘要

A method which comprises contacting a fluid containing boron trifluoride or a complex thereof with a metal fluoride to selectively adsorb and remove the boron trifluoride contained in the complex and heating the resultant metal tetrafluoroborate at a temperature in the range of 100 to 600 DEG C to separate it into boron trifluoride and the metal fluoride. Thus, boron trifluoride can be economically recovered in a reusable state without causing environmental pollution. By applying the method to a process for producing polybutylene, an olefin oligomer, etc. where a boron trifluoride complex catalyst is used, the catalyst retaining its activity can be recovered and effectively utilized.