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RECOVERY OF BUTANOL

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RECOVERY OF BUTANOL ( recovery-butanol )

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(12)United States Patent Grady et al. (10) Patent N0.: US 8,563,788 B2 (54) (75) (73) (*) (21) (22) (65) (63) (60) (51) (52) (58) RECOVERY OF BUTANOL FROM A MIXTURE OF BUTANOL, WATER, AND AN ORGANIC EXTRACTANT Inventors: MichaelCharlesGrady,Oaklyn,NJ (US);WilliamD Parten,Wilmington, DE (US);BruceM Vrana,Hockessin, DE (US);YihuiTomXu,Newark,DE (US);JosephJZaher,Newark,DE(US) Assignee: ButamaxAdvancedBiofuelsLLC, Wilmington,DE (US) (56) ReferencesCited U.S.PATENT DOCUMENTS Notice: Subjecttoanydisclaimer,thetermofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. This patent is subject to a terminal dis claimer. FOREIGN PATENT DOCUMENTS W0 WO 2009/013160 1/2009 WO 2009149270 12/2009 OTHER PUBLICATIONS International Search Report and Written Opinion of corresponding PCT/US2010/057600patentapplicationmailedApr.19,2011. EZeji et al., “Bioproduction of butanol from biomass: from genes to bioreactors”, Current Opinion in Biotechnology, London, GB, vol. 18, No. 3, Jun. 8, 2007, pp. 220-227. U.S. Appl. No. 61/168,640, ?led Apr. 13, 2009 now US. Appl. No. 12/758,870, ?led Apr. 13,2010. U.S. Appl. No. 61/168,642, ?led Apr. 13,2009. U.S. Appl. No. 61/168,645, ?led Apr. 13,2009. U.S. Appl. No. 61/231,697, ?led Aug. 6, 2009 now US. Appl. 12/758,870, ?led Apr. 13,2010. U.S. Appl. No. 61/231,698, ?led Aug. 6, 2009. US. Appl. No. 61/231,699, ?led Aug. 6, 2009. US. Appl. No. 61/225,659, ?led Jul. 15, 2009 now US. Appl. No. 12/834,915,?ledJul.13,2010. U.S. Appl. No. 61/225,662, ?led Jul. 15, 2009 now US. Appl. 12/834,916,?ledJul.13,2010. Primary Examiner * Elvis O Price (74)Attorney,Agent,orFirm* ChristineM.Lhulier (57) ABSTRACT A processforrecoveringbutanolfromamixturecomprising a water-immiscible organic extractant, water, butanol, and optionallyanon-condensablegas,isprovided.Thebutanolis selected from l-butanol, 2-butanol, isobutanol, and mixtures thereof.The extractantcomprises atleastone solventselected from the group consisting of C7 to C22 fatty alcohols, C7 to C22fattyacids,estersofC7toC22fattyacids,C7toC22fatty aldehydes,andmixturesthereof. 26 Claims, 2 Drawing Sheets App1.No.: 13/611,125 Filed: Sep.12,2012 Prior Publication Data US 2013/0001062A1 Jan.3,2013 Related US. Application Data ContinuationofapplicationNo. 12/949,154,?ledon Nov. 18,2010. ProvisionalapplicationNo.61/263,502,?ledonNov. 23,2009. Int.Cl. C07C 29/80 C07C 29/84 US. Cl. USPC ..........................................568/913;568/918 Field of Classi?cation Search USPC .................................................568/913,918 See application ?le for complete search history. (2006.01) (2006.01) (45) Date of Patent: *Oct. 22, 2013 2007/0092957 A1 2009/0305370 A1 4/2007 Donaldsoneta1. 12/2009 Gradyeta1. US008563788B2

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