C - Chemistry – Metallurgy – 09 – F
Patent
C - Chemistry, Metallurgy
09
F
C09F 1/04 (2006.01)
Patent
CA 2234911
The invention relates to a process for the preparation of a tall oil rosin ester with a low odor level, which process comprises an esterification step wherein a tall oil rosin is esterified with a polyol in order to form a product which contains a tall oil rosin ester, and evaporation is carried out on this product in order to remove odor components and other volatile components from the product, which evaporation is carried out in a short-path evaporator which has an evaporation surface and, in the vicinity of this surface, a condenser on which the vaporized components to be removed condense, whereupon a tall oil rosin ester with a low odor level is recovered from the evaporator.
Cette invention concerne un procédé de préparation d'une gomme ester de tallöl peu odorante, comprenant une étape d'estérification au cours de laquelle la gomme de tallöl est estérifiée à l'aide d'un polyol, pour former un produit contenant une gomme ester de tallöl, et une étape d'évaporation de ce produit, afin d'éliminer les composés odorants et d'autres composés volatils de ce produit. L'évaporation est réalisée dans un évaporateur à circuit court, ayant une surface d'évaporation et, au voisinage de cette surface, un condenseur sur lequel les composés évaporés se condensent, et dans lequel on récupère une gomme ester de tallöl peu odorante.
Arizona Chemical Oy
Fetherstonhaugh & Co.
LandOfFree
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