Invention Grant
US09174909B2 Two-stage, acid-catalyzed conversion of carbohydrates into levulinic acid
有权
二阶段，酸催化的碳水化合物转化成乙酰丙酸
- Patent Title: Two-stage, acid-catalyzed conversion of carbohydrates into levulinic acid
- Patent Title (中): 二阶段，酸催化的碳水化合物转化成乙酰丙酸
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Application No.: US13364472Application Date: 2012-02-02
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Publication No.: US09174909B2Publication Date: 2015-11-03
- Inventor: Troy Runge
- Applicant: Troy Runge
- Applicant Address: US WI Madison
- Assignee: Wisconsin Alumni Research Foundation
- Current Assignee: Wisconsin Alumni Research Foundation
- Current Assignee Address: US WI Madison
- Agency: DeWitt Ross & Stevens S.C.
- Agent Joseph T. Leone, Esq.
- Main IPC: B01J31/04
- IPC: B01J31/04 ; C07C51/31 ; C07C59/185 ; C07C51/00
Abstract:
A method of producing levulinic acid from biomass is described. The method includes two acid treatment steps: first, treating biomass with a first aqueous acidic solution at a pH, for a time, and temperature such that at least a portion of pentosans contained within the biomass is extracted from the biomass, to yield pentosan-extracted biomass; second, treating the pentosan-extracted biomass with a second aqueous acidic solution at a pH, for a time, and a temperature, such that at least a portion of hexosans contained within the pentosan-extracted biomass are converted to levulinic acid.
Public/Granted literature
- US20130204039A1 TWO-STAGE, ACID-CATALYZED CONVERSION OF CARBOHYDRATES INTO LEVULINIC ACID Public/Granted day:2013-08-08
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