(19)
(11) EP 2 913 319 A8

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

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
28.10.2015 Bulletin 2015/44

(88) Date of publication A3:
02.09.2015 Bulletin 2015/36

(43) Date of publication:
02.09.2015 Bulletin 2015/36

(21) Application number: 14157386.5

(22) Date of filing: 28.02.2014
(51) International Patent Classification (IPC): 
C07C 29/34(2006.01)
B01J 14/00(2006.01)
 C10L 1/02(2006.01)
(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
Designated Extension States:
BA ME

(71) Applicants:
  • ARKEMA FRANCE
    92700 Colombes (FR)
  • OBR Spolka Akcyjna
    09-411 Plock (PL)

(72) Inventors:
  • Dubois, Jean-Luc
    69390 Millery (FR)
  • Zhao, Wei
    4822 VE Breda (NL)
  • Roelant, Raf Edward Anna
    4822 VE Breda (NL)
  • Keuken, Hans
    2990 Wuustwezel (BE)
  • Borges, Pedro Miguel Ramos
    4811 XD Breda (NL)

(74) Representative: Beetz & Partner mbB 
Patentanwälte Steinsdorfstraße 10
80538 München
80538 München (DE)

   


(54) Synthesis of guerbet alcohols


(57) The present invention relates to a method and system for preparing a mixture of Guerbet alcohols where one or more primary alcohols of formula RCH2CH2OH are provided, with R representing hydrogen or a straight or branched chain alkyl of 1 to 14 carbon atoms. Further, a base and a catalyst are provided, which are mixed with the primary alcohol(s). The resulting mixture is heated to a process temperature above the boiling point of water under reaction conditions and the water resulting from the thus obtained condensation and dehydration of the primary alcohols is then removed constantly. When the Guerbet reaction has reached a certain stage, at least part of the reaction mixture is removed, followed by a separation of the desired Guerbet alcohols from the removed part of the reaction mixture. The other alcohols from the removed part of the reaction mixture are then returned to the reaction mixture for obtaining a higher amount of the desired Guerbet alcohols.