Method for producing linear or branched fatty acid esters by...

Details Method for producing linear or branched fatty acid esters by... Method for producing linear or branched fatty acid esters by...

2003-12-02

2009-08-25

Oh, Taylor Victor (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C554S175000, C560S231000

Reexamination Certificate

active

07579493

ABSTRACT:
The disclosed invention relates to a countercurrent process for the continuous esterification of C1-22(fatty) acids with C1-10monoalkanols, C2-5di- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor (1) and in a reaction column (3), characterized in that the reaction column (3) is preceded by the preliminary reactor (1) and a separation unit (2) for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit (2) to displace the reaction equilibrium before the reaction column (3). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column (3) in order to increase the vapor load in the lower part of the reaction column.

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