(19)
(11) EP 0 889 851 A1

(12)

(43) Date of publication:
13.01.1999 Bulletin 1999/02

(21) Application number: 97953540.0

(22) Date of filing: 20.12.1997
(51) International Patent Classification (IPC): 
C01F 7/ 56( . )
C07C 2/ 60( . )
(86) International application number:
PCT/US1997/024154
(87) International publication number:
WO 1998/029340 (09.07.1998 Gazette 1998/27)
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 02.01.1997 US 19970775522

(71) Applicant: Kerr-McGee Corporation
Oklahoma City, OK 73125 (US)

(72) Inventors:
  • DOANE, Elliott, P.
    Oklahoma City, OK 73134 (US)
  • LOW, Jim, Yuen-Fong
    Missouri City, TX 77459 (US)
  • SHERMAN, Larry, G.
    Edmond, OK 73003 (US)
  • YUILL, William, A.
    Edmond, OK 73003 (US)

(74) Representative: Cresswell, Thomas Anthony 
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


(54) ALUMINUM PROMOTED HYDROGENATION OF ALKYLATION SLUDGE FOR ALUMINUM CHLORIDE RECOVERY