(19)
(11)
EP 0 977 919 A1
(12)
(43)
Date of publication:
09.02.2000
Bulletin 2000/06
(21)
Application number:
98919692.8
(22)
Date of filing:
07.04.1998
(51)
International Patent Classification (IPC)
7
:
D21C
11/12
(86)
International application number:
PCT/SE9800/637
(87)
International publication number:
WO 9848/102
(
29.10.1998
Gazette 1998/43)
(84)
Designated Contracting States:
AT DE FI SE
(30)
Priority:
24.04.1997
SE 9701546
(71)
Applicant:
Kvaerner Pulping AB
651 15 Karlstad (SE)
(72)
Inventor:
NILSSON, Bengt
S-663 00 Skoghall (SE)
(54)
SEPARATING ALKALI METALS FROM GASIFIED BLACK LIQUOR