(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