(19)
(11) EP 0 370 006 A1

(12)

(43) Date of publication:
30.05.1990 Bulletin 1990/22

(21) Application number: 88901500.0

(22) Date of filing: 21.12.1987
(51) International Patent Classification (IPC): 
C22B 21/ 06( . )
(86) International application number:
PCT/SE1987/000622
(87) International publication number:
WO 1989/000208 (12.01.1989 Gazette 1989/02)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 29.06.1987 US 19870067949

(71) Applicant: AGA AKTIEBOLAG
S-181 81 Lidingö (SE)

(72) Inventors:
  • MacNEAL, James, R.
    Burton, OH 44021 (US)
  • RACK, Timothy, P.
    Solon, OH 44134 (US)
  • CORNS, Ronald, R.
    Maumee, OH 43537 (US)

(74) Representative: Wiedemann, Bernd, et al 
AGA AKTIEBOLAG Patent Department
S-181 81 Lidingö
S-181 81 Lidingö (SE)

   


(54) PROCESS FOR DEGASSING ALUMINUM MELTS, AND GAS FOR USE THEREIN