METHODS OF PREPARING ACTIVE CHROMIUM/ALUMINA CATALYSTS VIA TREATMENT WITH SULFATE AND POLYMERS PRODUCED USING THE CHROMIUM/ALUMINA CATALYSTS - Patent 1748842

(19)

(11)

EP 1 748 842 A1

(12)

(43)	Date of publication:
	07.02.2007 Bulletin 2007/06

(21)	Application number: 05732642.3

(22)	Date of filing: 24.03.2005

(51)

International Patent Classification (IPC):

B01J 27/053^(2006.01)
B01J 21/04^(2006.01)
C08F 110/02^(2006.01)

B01J 23/26^(2006.01)
C08F 4/24^(2006.01)

(86)	International application number:
	PCT/US2005/009668

(87)	International publication number:
	WO 2005/107943 (17.11.2005 Gazette 2005/46)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30)

Priority:

22.04.2004 US 829850
22.04.2004 US 829844

(71)	Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
	The Woodlands, TX 77380 (US)

(72)	Inventors:
	MCDANIEL, Max P. Bartlesville, Oklahoma 74006 (US) COLLINS, Kathy S Bartlesville, Oklahoma 74006 (US) BENHAM, Elizabeth A. Spring, Texas 77379 (US) DESLAURIERS, Paul J. Bartlesville, Oklahoma 74006 (US)

(74)	Representative: Stevens, Ian Edward et al
	Eric Potter Clarkson LLP Park View House 58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)

(54)	METHODS OF PREPARING ACTIVE CHROMIUM/ALUMINA CATALYSTS VIA TREATMENT WITH SULFATE AND POLYMERS PRODUCED USING THE CHROMIUM/ALUMINA CATALYSTS