(19)
(11) EP 0 462 244 A1

(12)

(43) Date of publication:
27.12.1991 Bulletin 1991/52

(21) Application number: 91901500.0

(22) Date of filing: 08.01.1991
(51) International Patent Classification (IPC): 
C07C 51/ 09( . )
(86) International application number:
PCT/FI1991/000007
(87) International publication number:
WO 1991/010637 (25.07.1991 Gazette 1991/17)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 09.01.1990 FI 19900000107

(71) Applicant: KEMIRA OY
SF-02271 Espoo (FI)

(72) Inventors:
  • VUORI, Antti, Ilmari
    SF-02100 Espoo (FI)
  • MATTILA, Tapio
    SF-02320 Espoo (FI)

(74) Representative: Ritter, Stephen David, et al 
Mathys & Squire 100 Grays Inn Road
London WC1X 8AL
London WC1X 8AL (GB)

   


(54) A PROCESS FOR PREPARING OXALIC ACID