The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2009
Filed:
Sep. 20, 2006
Gérard Hillion, Herblay, FR;
Bruno Delfort, Paris, FR;
Gérard Hillion, Herblay, FR;
Bruno Delfort, Paris, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A method allowing, from natural fat or oils, or from other glyceride mixtures, to obtain fatty acid ethyl esters that can be used as gas oil substitutes, comprises: stage (a) oil, fat or a glyceride mixture is transesterified by ethanol using a soluble catalyst or a catalyst that becomes soluble during the reaction; stage (b) resultant glycerin is decanted and removed, without requiring an excess ethanol evaporation operation, stage (c) a second transesterification is conducted to obtain a product whose ester content is at least 97% by mass, stage (d) evaporation of excess ethanol is carried out in the presence of the catalyst under suitable conditions preventing a reverse transesterification reaction, the resultant ethanol being practically anhydrous, stage (e) the ester undergoes purification by water wash sequences, and stage (f) the ester is dried under reduced pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile