Methods and systems for the production of diesters from triacylglyceride esters

摘要

Efficient methods for the production of long-chain unsaturated dicarboxylic compounds are disclosed. Unsaturated dicarboxylic compounds may be prepared from a reaction mixture containing unsaturated carboxylic compounds in the presence of one or more catalysts. In addition to the unsaturated dicarboxylic compounds, alkene compounds may also be produced. The alkene compounds may be removed from the reaction mixture under reduced pressure. The method may also use a wiped-film still as a means to remove the alkene compounds from the reaction mixture. Reaction conditions may be monitored and/or controlled through the use of one or more electronic system(s) in communication with a variety of sensors and controllable devices.

主权项

1. A method of preparing an unsaturated α,ω-dicarboxylic compound, the method comprising:
contacting, in a first reaction vessel, at least one unsaturated carboxylic compound and at least one catalyst to form a mixture; exposing, in the first reaction vessel, the mixture to conditions suitable to form at least one unsaturated α,ω-dicarboxylic compound and at least one alkene compound; circulating at least a portion of the mixture between the first reaction vessel and a second vessel; and removing the alkene compound from the mixture under a reduced pressure in the second vessel.