(19)
(11) EP 2 864 306 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:
21.03.2018 Bulletin 2018/12

(45) Mention of the grant of the patent:
10.01.2018 Bulletin 2018/02

(21) Application number: 13729902.0

(22) Date of filing: 10.06.2013
(51) International Patent Classification (IPC): 
C07D 307/68(2006.01)
(86) International application number:
PCT/US2013/044932
(87) International publication number:
WO 2013/191943 (27.12.2013 Gazette 2013/52)

(54)

PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID BY HYDROGENATION

REINIGUNG VON ROHER FURAN-2,5-DICARBONSÄURE DURCH HYDRIERUNG

PURIFICATION D'ACIDE FURAN-2,5-DICARBOXYLIQUE BRUT PAR HYDROGÉNATION


(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR

(30) Priority: 22.06.2012 US 201261663246 P
04.02.2013 US 201313758080

(43) Date of publication of application:
29.04.2015 Bulletin 2015/18

(60) Divisional application:
17203808.5

(73) Proprietor: Eastman Chemical Company
Kingsport, TN 37660 (US)

(72) Inventors:
  • JANKA, Mesfin, Ejerssa
    Kingsport, TN 37660 (US)
  • SUMNER, Charles, Edwan
    Kingsport, TN 37664 (US)
  • KIRK, Shane, Kipley
    Church Hill, TN 37642 (US)
  • SHAIKH, Ashfaq, Shahanawaz
    Kingsport, TN 37660 (US)
  • PARKER, Kenny, Randolph
    Afton, TN 37616 (US)

(74) Representative: Ricker, Mathias 
Wallinger Ricker Schlotter Tostmann Patent- und Rechtsanwälte Partnerschaft mbB Zweibrückenstrasse 5-7
80331 München
80331 München (DE)


(56) References cited: : 
WO-A1-02/098836
WO-A2-2009/023174
US-A- 3 931 305
WO-A2-2008/054804
US-A- 3 584 039
   
  • MOLDENHAUER ET AL.: "Beitrage zur Furanchemie I", JUSTUS LIEBIGS ANNALEN DER CHEMIE, vol. 580, 1953, pages 169-190, XP002702936,
  • Sara E. Davis ET AL: "Oxidation of 5-hydroxymethylfurfural over supported Pt, Pd and Au catalysts", Catalysis Today, vol. 160, no. 1, 2 February 2011 (2011-02-02), pages 55-60, XP055320167, AMSTERDAM, NL ISSN: 0920-5861, DOI: 10.1016/j.cattod.2010.06.004
  • TONG X ET AL: "Biomass into chemicals: Conversion of sugars to furan derivatives by catalytic processes", APPLIED CATALYSIS A: GENERAL, ELSEVIER, AMSTERDAM, NL, vol. 385, no. 1-2, 15 September 2010 (2010-09-15), pages 1-13, XP027230510, ISSN: 0926-860X [retrieved on 2010-07-30]
   
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).