(19)
(11) EP 2 477 707 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
26.07.2017 Bulletin 2017/30

(45) Mention of the grant of the patent:
03.05.2017 Bulletin 2017/18

(21) Application number: 09849355.4

(22) Date of filing: 15.09.2009
(51) International Patent Classification (IPC): 
B01D 21/01(2006.01)
B09B 3/00(2006.01)
C10G 1/04(2006.01)
C02F 11/00(2006.01)
C02F 103/36(2006.01)
 B01D 21/02(2006.01)
C10C 3/14(2006.01)
F26B 3/00(2006.01)
C02F 11/14(2006.01)
(86) International application number:
PCT/CA2009/001303
(87) International publication number:
WO 2011/032253 (24.03.2011 Gazette 2011/12)

(54)

PROCESS FOR DRYING FINE TAILINGS

VERFAHREN ZUR TROCKNUNG VON BRUCHFEINMATERIAL

PROCÉDÉ DE SÉCHAGE DE RÉSIDUS FINS

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(43) Date of publication of application:
25.07.2012 Bulletin 2012/30

(60) Divisional application:
17161646.9

(73) Proprietor: Suncor Energy Inc.
Calgary, Alberta T2P 3E3 (CA)

(72) Inventors:
  • REVINGTON, Adrian, Peter
    Fort McMurray Alberta T9K 2N5 (CA)
  • WEISS,Marvin ,Harvey
    Calgary Alberta T2J 5G5 (CA)
  • WELLS, Patrick, Sean
    Fort McMurray Alberta T9J 1 L9 (CA)
  • HANN , Thomas,Charles
    Onoway Alberta T0E 1V0 (CA)

(74) Representative: HGF Limited 
Saviour House 9 St. Saviourgate
York YO1 8NQ
York YO1 8NQ (GB)


(56) References cited: : 
WO-A1-02/079099
US-A- 5 839 828
 WO-A1-2009/009887
   
  • Kingsley Emeka Ezeagwul: "STUDIES ON FLOCCULATION OF KAOLIN SUSPENSIONS AND MATURE FINE TAILINGS", , 1 January 2008 (2008-01-01), XP055131280, ISBN: 978-0-49-447210-1 Retrieved from the Internet: URL:http://www.collectionscanada.gc.ca/obj /thesescanada/vol2/002/MR47210.PDF [retrieved on 2014-07-23]
  • "Sludge polymer injection wafer four port", , 3 April 2007 (2007-04-03), XP055131270, Retrieved from the Internet: URL:http://inyoprocess.com/images/PDFs/inj ection disk-polymer-sludge.pdf [retrieved on 2014-07-23]
  • FRANKS G V ET AL: "Aggregate size and density after shearing, implications for dewatering fine tailings with hydrocyclones", INTERNATIONAL JOURNAL OF MINERAL PROCESSING, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 77, no. 1, 1 September 2005 (2005-09-01), pages 46-52, XP027606053, ISSN: 0301-7516 [retrieved on 2005-09-01]
  • H. LI ET AL: "Synergetic Role of Polymer Flocculant in Low-Temperature Bitumen Extraction and Tailings Treatment", ENERGY & FUELS, vol. 19, no. 3, 1 May 2005 (2005-05-01), pages 936-943, XP055131329, ISSN: 0887-0624, DOI: 10.1021/ef049744e
  • OWEN, A. T. ET AL.: 'Using turbulent pipe flow to study the factors affecting polymer-bridging flocculation of mineral systems' INTERNATIONAL JOURNAL OF MINERAL PROCESSING vol. 87, no. 3-4, 02 July 2008, pages 90 - 99, XP022685166
  • OWEN A T ET AL: "Using turbulent pipe flow to study the factors affecting polymer-bridging flocculation of mineral systems", INTERNATIONAL JOURNAL OF MINERAL PROCESSING, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 87, no. 3-4, 2 July 2008 (2008-07-02) , pages 90-99, XP022685166, ISSN: 0301-7516, DOI: 10.1016/J.MINPRO.2008.02.004 [retrieved on 2008-02-29]
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).