Two-stage dehydration of sugars
Abstract
The invention includes methods for producing dianhydrosugar alcohol by providing an acid catalyst within a reactor and passing a starting material through the reactor at a first temperature. At least a portion of the staring material is converted to a monoanhydrosugar isomer during the passing through the column. The monoanhydrosugar is subjected to a second temperature which is greater than the first to produce a dianhydrosugar. The invention includes a method of producing isosorbide. An initial feed stream containing sorbitol is fed into a continuous reactor containing an acid catalyst at a temperature of less than 120.degree. C. The residence time for the reactor is less than or equal to about 30 minutes. Sorbitol converted to 1,4-sorbitan in the continuous reactor is subsequently provided to a second reactor and is dehydrated at a temperature of at least 120.degree. C. to produce isosorbide.
- Inventors:
-
- Kennewick, WA
- Richland, WA
- West Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 979383
- Patent Number(s):
- 7615652
- Application Number:
- 11/341,930
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Holladay, Johnathan E, Hu, Jianli, Wang, Yong, and Werpy, Todd A. Two-stage dehydration of sugars. United States: N. p., 2009.
Web.
Holladay, Johnathan E, Hu, Jianli, Wang, Yong, & Werpy, Todd A. Two-stage dehydration of sugars. United States.
Holladay, Johnathan E, Hu, Jianli, Wang, Yong, and Werpy, Todd A. Tue .
"Two-stage dehydration of sugars". United States. https://www.osti.gov/servlets/purl/979383.
@article{osti_979383,
title = {Two-stage dehydration of sugars},
author = {Holladay, Johnathan E and Hu, Jianli and Wang, Yong and Werpy, Todd A},
abstractNote = {The invention includes methods for producing dianhydrosugar alcohol by providing an acid catalyst within a reactor and passing a starting material through the reactor at a first temperature. At least a portion of the staring material is converted to a monoanhydrosugar isomer during the passing through the column. The monoanhydrosugar is subjected to a second temperature which is greater than the first to produce a dianhydrosugar. The invention includes a method of producing isosorbide. An initial feed stream containing sorbitol is fed into a continuous reactor containing an acid catalyst at a temperature of less than 120.degree. C. The residence time for the reactor is less than or equal to about 30 minutes. Sorbitol converted to 1,4-sorbitan in the continuous reactor is subsequently provided to a second reactor and is dehydrated at a temperature of at least 120.degree. C. to produce isosorbide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 10 00:00:00 EST 2009},
month = {Tue Nov 10 00:00:00 EST 2009}
}
Works referenced in this record:
Isosorbide. Preparation, Properties and Chemistry
journal, January 1986
- Flèche, G.; Huchette, M.
- Starch - Stärke, Vol. 38, Issue 1