METHOD TO EXTEND THE UTILIZATION OF A CATALYST IN A MULTISTAGE REACTOR SYSTEM - Patent 1793918

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EP 1 793 918 A1

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(43)	Date of publication:
	13.06.2007 Bulletin 2007/24

(21)	Application number: 05802484.5

(22)	Date of filing: 29.09.2005

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International Patent Classification (IPC):

B01J 8/04^(2006.01)

(86)	International application number:
	PCT/US2005/035079

(87)	International publication number:
	WO 2006/039429 (13.04.2006 Gazette 2006/15)

(84)	Designated Contracting States:
	DE FR GB IT NL

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Priority:

01.10.2004 US 615083 P

(71)	Applicant: E.I. du Pont de Nemours and Company
	Wilmington, DE 19898 (US)

(72)	Inventors:
	DIFFENDALL, George, F. Wilmington, Delaware 19808 (US) SEAPAN, Mayis Landenberg, Pennsylvania 19350-1347 (US)

(74)	Representative: Hirsch & Associés
	58, avenue Marceau 75008 Paris 75008 Paris (FR)

(54)	METHOD TO EXTEND THE UTILIZATION OF A CATALYST IN A MULTISTAGE REACTOR SYSTEM