(19)
(11) EP 2 751 237 A1

(12)

(43) Date of publication:
09.07.2014 Bulletin 2014/28

(21) Application number: 12835766.2

(22) Date of filing: 01.10.2012
(51) International Patent Classification (IPC): 
C11B 1/00(2006.01)
C08G 63/48(2006.01)
C07C 67/02(2006.01)
 C11C 3/04(2006.01)
B01J 37/36(2006.01)
(86) International application number:
PCT/SG2012/000365
(87) International publication number:
WO 2013/048346 (04.04.2013 Gazette 2013/14)
(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: 30.09.2011 US 201161541239 P
30.09.2011 US 201161541243 P
30.11.2011 US 201161564962 P

(71) Applicant: National University of Singapore
Singapore 119077 (SG)

(72) Inventors:
  • LI, Zhi
    Singapore 119077 (SG)
  • NGO, Nguyen Phuong Thao
    Singapore 119077 (SG)
  • WANG, Wen
    Singapore 119077 (SG)
  • ZILLILLAH, Zillillah
    Singapore 119077 (SG)
  • TAN, Guowei
    Singapore 119077 (SG)
  • LI, Ai-Tao
    Singapore 119077 (SG)
  • YAN, Jin-Yong
    Singapore 119077 (SG)

(74) Representative: Boult Wade Tennant 
Verulam Gardens 70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) METHOD OF CONVERTING GREASE CONTAINING HIGH CONTENT OF FREE FATTY ACIDS TO FATTY ACID ESTERS AND CATALYSTS FOR USE IN SAID METHOD