(19)
(11) EP 0 830 208 A1

(12)

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

(21) Application number: 96915589.0

(22) Date of filing: 07.05.1996
(51) International Patent Classification (IPC): 
B03D 1/ 016( . )
B03D 101/ 06( . )
(86) International application number:
PCT/US1996/006477
(87) International publication number:
WO 1996/040438 (19.12.1996 Gazette 1997/03)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 07.06.1995 US 19950474805
07.06.1995 US 19950475160

(71) Applicant: Cytec Technology Corp.
Wilmington, Delaware 19801 (US)

(72) Inventors:
  • NAGARAJ, D., R.
    Stamford, CT 06902 (US)
  • WANG, Samuel, S.
    Cheshire, CT 06410 (US)
  • LEE, James, S.
    Sandy Hook, CT 06482 (US)
  • MAGLIOCCO, Lino
    Shelton, CT 06484 (US)

(74) Representative: Allam, Peter Clerk 
LLOYD WISE, TREGEAR & CO., Commonwealth House, 1-19 New Oxford Street
London WC1A 1LW
London WC1A 1LW (GB)

   


(54) METHOD OF DEPRESSING NON-SULFIDE SILICATE GANGUE MINERALS