RECOVERY AND RECYCLE OF CATALYST COMPONENTS USED IN PALLADIUM-CATALYZED PREPARATION OF ARYLCARBOXYLIC ACIDS - Patent 1025074

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EP 1 025 074 A1

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(43)	Date of publication:
	09.08.2000 Bulletin 2000/32

(21)	Application number: 98953708.9

(22)	Date of filing: 16.10.1998

(51)	International Patent Classification (IPC)⁷: C07C 51/14, C07C 59/64, C07C 41/30, C07C 43/215

(86)	International application number:
	PCT/US9822/055

(87)	International publication number:
	WO 9919/289 (22.04.1999 Gazette 1999/16)

(84)	Designated Contracting States:
	BE CH DE ES FR GB IT LI

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Priority:

16.10.1997 US 951736

(71)	Applicant: ALBEMARLE CORPORATION
	Baton Rouge, LA 70801-1765 (US)

(72)	Inventors:
	HERNDON, Robert, Carl, Jr. Baton Rouge, LA 70816 (US) ALLEN, Robert, H. Baton Rouge, LA 70808 (US) CHOCKALINGAM, Kannappan, C. Baton Rouge, LA 70816 (US) FOCHT, Gary, D. Baton Rouge, LA 70808 (US)

(74)	Representative: UEXKÜLL & STOLBERG
	PatentanwälteBeselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)

(54)	RECOVERY AND RECYCLE OF CATALYST COMPONENTS USED IN PALLADIUM-CATALYZED PREPARATION OF ARYLCARBOXYLIC ACIDS