(19)
(11) EP 0 031 815 A1

(12)

(43) Date of publication:
15.07.1981 Bulletin 1981/28

(21) Application number: 80900897.0

(22) Date of filing: 20.05.1980
(51) International Patent Classification (IPC): 
C07C 1/ 00( . )
C07C 9/ 02( . )
C07C 7/ 13( . )
C07C 67/ 00( . )
(86) International application number:
PCT/GB1980/000090
(87) International publication number:
WO 1980/002558 (27.11.1980 Gazette 1980/27)
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 21.05.1979 GB 19790017554

(71) Applicants:
  • SELLY OAK DIECASTING LIMITED
    Worcester (GB)
  • ITO, Teishiro
    Yamagata 998 (JP)

(72) Inventors:
  • SELLY OAK DIECASTING LIMITED
    Worcester (GB)
  • ITO, Teishiro
    Yamagata 998 (JP)

(74) Representative: Neville, Peter Warwick 
Patent Department National Research Development Corporation 101 Newington Causeway
London SE1 6BU
London SE1 6BU (GB)

   


(54) SEPARATING ETHANE FROM METHANE