Futerro S.a.

Galactic S.a.

Pierre-Antoine Mariage

Philippe Coszach

Jean-Christophe Bogaert

Angelo Chianese

Maria-Paola Parisi

Aurélie Bernard

Delphine Hottois

The present invention relates to an industrial process for producing a lactic ester containing in total at least seven carbon atoms, from a fermentation liquor containing ammonium lactate in order to avoid the inherent production of gypsum, with a high yield and according to which the loss of lactic ester in the form of lactamide is limited as much as possible.

Method for producing a lactic ester from a fermentation juice containing ammonium lactate

Processes for producing lactide from lactic acid oligomers are described herein. The processes generally include heating a lactic acid oligomer in the presence of a catalyst at a temperature of between 150&#xb0; C. and 300&#xb0; C. under a pressure of less than 0.01 MPa to form a lactide; distilling the lactide; and condensing and recovering the lactide, wherein the catalyst is a metal salt of the phosphite anion POin which the metal is selected from the group consisting of tin, aluminum, zinc, titanium and zirconium.

Method for obtaining lactide

Method for purifying lactic acid by crystallization in one or a plurality of steps, characterized in that crystals are formed from an impure aqueous lactic acid solution having a color of &#x3e;500 Hazen, at a concentration between 85 and 95% by controlling the lactic acid oligomer content expressed in terms of a relative monomer content greater than 80% and controlling the degree of supersaturation of the solution between 1 and 60% in order to obtain lactic acid crystals having a specific surface area by mass of &#x3c;0.05 m/g.

Method of purifying lactic acid by crystallization

The present invention relates to a method of obtaining lactide by means of a solvent of the ether class from a mixture that is in liquid form comprising lactide, meso-lactide, and other impurities.

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Escanaffles, Belgium

Pierre-Antoine Mariage