Method of preparing fatty acid alkyl esters from waste or recycled fatty acid stock
CA 2563301 C · Owner: Soper, John G. · Inventors: Hilaly, Ahmad K.; Geier, Douglas F.; Soper, John G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a method or preparing fatty acid alkyl esters from fatty acids contained in co-product streams or waste or recycled , fatty acid stock. The present method utilizes an acidic resin to convert the fatty acid stock into esters. The present method encompasses the use of reactive simulated moving bed chromatography wherein above about 95 percent , of the fatty acid stock is converted to fatty acid alkyl esters. The present method has been optimized to separate the ester product from the raffinate stream formed during the chromatographic process thereby improving the yield , of the esterification and preventing acid hydrolysis of the ester.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 11, 2005 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.