(19)
(11) EP 0 168 438 A1

(12)

(43) Date of publication:
22.01.1986 Bulletin 1986/04

(21) Application number: 85900562.0

(22) Date of filing: 22.12.1984
(51) International Patent Classification (IPC): 
B01D 9/ 02( . )
B01D 9/ 00( . )
(86) International application number:
PCT/US1984/002120
(87) International publication number:
WO 1985/002781 (04.07.1985 Gazette 1985/15)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 27.12.1983 US 19830565856
25.01.1984 US 19840573701
26.03.1984 US 19840593529

(71) Applicants:
  • Cheng, Sing-Wang
    Albuquerque New Mexico 87111 (US)
  • Cheng, Chen-Yen
    Albuquerque New Mexico, 87111 (US)

(72) Inventors:
  • Cheng, Sing-Wang
    Albuquerque New Mexico 87111 (US)
  • Cheng, Chen-Yen
    Albuquerque New Mexico, 87111 (US)

(74) Representative: Wells, Keith Raymond, et al 
POTTS, KERR & CO. 15 Hamilton Square
Birkenhead Merseyside L41 6BR
Birkenhead Merseyside L41 6BR (GB)

   


(54) A FRACTIONAL SOLIDIFICATION PROCESS AND APPARATUSES FOR USE THEREIN