Process for decoloring fatty acid esters
AssigneeNestec S.A.
InventorsPhilippe Gonus, Hans-Juergen Wille
Life of this patent
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Abstract
Fatty acid esters, particularly those suitable for use in foods and cosmetics, are decolored by passing a solution of a fatty acid ester dissolved in an apolar solvent through particulate montmorillonite which is in admixture with particulate silica gel and/or active carbon. The solution passed through the column is obtained and the solvent is eliminated from the ester.
Claims23
A process for decoloring fatty acid esters comprising passing a solution of a fatty acid ester dissolved in an apolar solvent through a column containing a mixture of particulate montmorillonite having a particle size of from 5.mu. to 60.mu. and a particulate material selected from the group consisting of silica gel and active carbon, obtaining the solution passed through the mixture and then, eliminating the solvent from the ester.
A process for decoloring fatty acid esters comprising passing a solution of a fatty acid ester dissolved in an apolar solvent through a column containing a mixture of particulate montmorillonite having a particle size of from 60.mu. to 250.mu. and a particulate material selected from the group consisting of silica gel and active carbon, obtaining the solution passed through the mixture and then, eliminating the solvent from the ester.
A process for decoloring fatty acid esters comprising passing a solution of a fatty acid ester dissolved in an apolar solvent through a column containing a mixture of particulate montmorillonite, wherein 40% to 60% by weight of the montmorillonite has a particle size of from 5.mu. to 60.mu. and from 60% to 40% by weight of the montmorillonite has a particle size of from above 60.mu. to 250.mu., and a particulate material selected from the group consisting of silica gel and active carbon, obtaining the solution passed through the mixture and then, eliminating the solvent from the ester.
Dependencies are inferred from the claim text.