PROCESSES FOR THE RECOVERY AND RECYCLING OF BORON TRIFLUORIDE OR COMPLEXES THEREOF

Title:

PROCESSES FOR THE RECOVERY AND RECYCLING OF BORON TRIFLUORIDE OR COMPLEXES THEREOF

Document Type and Number:

WIPO Patent Application WO/2004/037412

Kind Code:

A1

Abstract:

The invention provides processes for the recovery of a catalyst which are to be applied to the reactions wherein boron trifluoride or a complex thereof is used as the catalyst, that is, (I) a process for the recovery of a catalyst which comprises using as the reaction solvent a solvent containing a hydrofluorocarbon compound and/or an oxygenic hydrofluoro- carbon compound and, after the completion of the reaction, separating the reaction solvent from the reaction mixture; and (II) a process for the recovery of a catalyst which comprises extracting boron trifluoride or a complex thereof from the reaction mixture after the completion of the reaction by using a hydrofluorocarbon compound and/or an oxygenic hydrofluoro- carbon compound as the extraction solvent. According to the processes, boron trifluoride or complexes thereof used as catalyst can be easily separated from the reaction mixtures and re-used.

Inventors:

HIRONAKA YOSHIO (JP)
SEKIGUCHI HIROKI (JP)
YOSHIDA YUKIO (JP)
TSUBOUCHI TOSHIYUKI (JP)

Application Number:

PCT/JP2003/013714

Publication Date:

May 06, 2004

Filing Date:

October 27, 2003

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)
HIRONAKA YOSHIO (JP)
SEKIGUCHI HIROKI (JP)
YOSHIDA YUKIO (JP)
TSUBOUCHI TOSHIYUKI (JP)

International Classes:

B01J27/12; B01J27/32; B01J38/54; C01B35/06; (IPC1-7): B01J27/32; C01B35/06; C07C2/32; C07C13/43; C07C11/02; C07C41/38; C07C43/06

Domestic Patent References:

WO2000026261A1

2000-05-11

Foreign References:

US3988424A	1976-10-26
JPS5062927A	1975-05-29
JPS55167045A	1980-12-26

Other References: