(19)
(11)
EP 0 586 456 A1
(12)
(43)
Date of publication:
16.03.1994
Bulletin 1994/11
(21)
Application number:
92910672.0
(22)
Date of filing:
22.05.1992
(51)
International Patent Classification (IPC):
B01J
19/
08
( . )
C25D
21/
04
( . )
B01J
19/
16
( . )
(86)
International application number:
PCT/FI1992/000160
(87)
International publication number:
WO 1992/020443
(
26.11.1992
Gazette 1992/29)
(84)
Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
(30)
Priority:
22.05.1991
FI 19910002488
(71)
Applicant:
ION BLAST LTD.
SF-01740 Vaantaa (FI)
(72)
Inventor:
ILMASTI, Veikko
SF-00640 Helsinki (FI)
(74)
Representative:
Örtenblad, Bertil Tore
Noréns Patentbyra AB Box 27034
S-102 51 Stockholm
S-102 51 Stockholm (SE)
(54)
METHOD FOR PREVENTING EVAPORATION OF A LIQUID FROM A BASIN AND SPREADING OF PARTICULATE MATERIAL CARRIED BY VAPOR DROPS TO THE SURROUNDINGS