(19)
(11) EP 2 104 644 A2

(12)

(43) Date of publication:
30.09.2009 Bulletin 2009/40

(21) Application number: 06848318.9

(22) Date of filing: 28.12.2006
(51) International Patent Classification (IPC): 
C01G 23/053(2006.01)
(86) International application number:
PCT/US2006/049545
(87) International publication number:
WO 2008/088312 (24.07.2008 Gazette 2008/30)
(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 LV MC NL PL PT RO SE SI SK TR

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

(72) Inventors:
  • HUTCHENSON, Keith, W.
    Lincoln University, Pennsylvania 19352 (US)
  • LI, Sheng
    Elmhurst, New Jersey 11373 (US)
  • CORBIN, David, Richard
    West Chester, Pennsylvania 19380 (US)
  • TORARDI, Carmine
    Wilmington, Delaware 19810 (US)
  • MCCARRON, Eugene, Michael
    Greenville, Delaware 19807 (US)

(74) Representative: Matthews, Derek Peter 
Frank B. Dehn & Co. St Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) PROCESSES FOR THE HYDROTHERMAL PRODUCTION OF TITANIUM DIOXIDE