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US 12,297,405 B2Granted
Chloropropanol removal process
AssigneeGreen Lizard Technologies Ltd.
InventorsPeter Goodrich, Eoghain O'Hara, Martin Atkins
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Abstract
The invention relates to processes for the refining of oils. In particular, the invention relates to processes for the refining of oils of biological origin such as vegetable oils.
Claims20
A process for removing chloropropanol, or its fatty acid esters, from glyceride oil, wherein the total concentration of chloropropanol and fatty acid esters thereof in the glyceride oil is at least 0.01 ppm, the process comprising the steps of:
- (i) contacting glyceride oil comprising chloropropanol, or its fatty acid esters, with an organic amine and water to form a treated glyceride oil and an aqueous phase;
- wherein the water is added in an amount from 5% v/v to 40% v/v relative to the organic amine and the amount of organic amine is from 1 wt. % to 75 wt. % relative to the glyceride oil;
- and the organic amine is dimethylethanolamine:
- and
- (ii) separating the treated glyceride oil from the aqueous phase after contacting the glyceride oil with the organic amine and water;
- wherein the treated glyceride oil has a reduced concentration of chloropropanol, or its fatty acid esters, compared to the glyceride oil contacted in step (i).
3 more elements
Dependencies are inferred from the claim text.