(19)
(11) EP 0 830 437 A1

(12)

(43) Date of publication:
25.03.1998 Bulletin 1998/13

(21) Application number: 96919847.0

(22) Date of filing: 31.05.1996
(51) International Patent Classification (IPC): 
C09K 5/ 06( . )
(86) International application number:
PCT/FI1996/000327
(87) International publication number:
WO 1996/039472 (12.12.1996 Gazette 1997/02)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 06.06.1995 FI 19950002760
29.11.1995 FI 19950005754

(71) Applicant: KEMIRA CHEMICALS OY
00180 Helsinki (FI)

(72) Inventors:
  • AITTA, Eero
    FIN-91410 Jokirinne (FI)
  • VARILA, Elias
    FIN-90940 Jääli (FI)
  • VAPAAOKSA, Pekka
    FIN-33700 Tampere (FI)

(74) Representative: Hakola, Unto Tapani 
Tampereen Patenttitoimisto Oy, Hermiankatu 6
33720 Tampere
33720 Tampere (FI)

   


(54) A METHOD FOR PERFORMING HEAT EXCHANGE BY USING A HEAT TRANSFER MEDIUM, A HEAT TRANSFER MEDIUM AND A HEAT EXCHANGE APPARATUS