Invention Grant
US08968523B2 Recovery of butanol isomers from a mixture of butanol isomers, water, and an organic extractant
有权
从丁醇异构体,水和有机萃取剂的混合物中回收丁醇异构体
- Patent Title: Recovery of butanol isomers from a mixture of butanol isomers, water, and an organic extractant
- Patent Title (中): 从丁醇异构体,水和有机萃取剂的混合物中回收丁醇异构体
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Application No.: US12834916Application Date: 2010-07-13
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Publication No.: US08968523B2Publication Date: 2015-03-03
- Inventor: Yihui Tom Xu , William D. Parten
- Applicant: Yihui Tom Xu , William D. Parten
- Applicant Address: US DE Wilmington
- Assignee: Butamax Advanced Biofuels LLC
- Current Assignee: Butamax Advanced Biofuels LLC
- Current Assignee Address: US DE Wilmington
- Main IPC: B01D3/40
- IPC: B01D3/40 ; C07C29/84 ; C07C29/86 ; C07C31/12 ; B01D3/00 ; B01D3/14

Abstract:
A process for recovering butanol from a mixture of a water-immiscible organic extractant, water, butanol, and optionally a non-condensable gas, is provided. The butanol is selected from 1-butanol, isobutanol, and mixtures thereof. An overhead stream from a first distillation column is decanted into two liquid phases. The wet butanol phase is refined in a second distillation column; the aqueous phase is returned to the first distillation column. A portion of the wet butanol phase from the decanter is also returned to the first distillation column. The extractant may be C7 to C22 fatty alcohols, C7 to C22 fatty acids, esters of C7 to C22 fatty acids, C7 to C22 fatty aldehydes, and mixtures thereof.
Public/Granted literature
- US20110162954A1 RECOVERY OF BUTANOL FROM A MIXTURE OF BUTANOL, WATER, AND AN ORGANIC EXTRACTANT Public/Granted day:2011-07-07
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