Elimination of organohalo and oxirane species in carboxylic acid ester streams

摘要

The present technology provides a process of reducing, removing or eliminating organohalo, glycidol, and oxirane species from carboxylic acid esters streams and crude and refined triglyceride oils to provide a carboxylic acid ester stream or triglyceride oil with reduced levels or essentially free of organohalo, glycidyl or other oxirane species. The process includes adding to the carboxylic acid ester stream or triglyceride oil an amount of a carboxylate anion and a cation counterion sufficient to react with the organohalo, glycidyl and oxirane species present.

主权项

1. A process of preparing a carboxylic acid ester stream with reduced levels of organohalo, glycidyl or other oxirane species, the process comprising:
adding to the carboxylic acid ester stream an effective amount of a carboxylate anion to react with all of the organohalo, glycidyl and oxirane species present in the carboxylate acid ester stream at a temperature of 80° C. to 275° C., wherein the carboxylate anion reacts with the organohalo, glycidyl or oxirane species for a sufficient amount of time to provide a carboxylic acid ester stream with reduced levels of organohalo, glycidyl or other oxirane species.