Recovery and purification of anhydro sugar alcohols from a...

Details Recovery and purification of anhydro sugar alcohols from a... Recovery and purification of anhydro sugar alcohols from a...

2005-03-15

2005-03-15

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S124000, C536S123100, C536S055300, C536S018500, C536S018600, C536S018700, C549S464000, C424S401000, C424S451000, C428S036920, C514S338000

Reexamination Certificate

active

06867296

ABSTRACT:
This invention concerns a process for recovering and purifying dianhydro sugar alcohols from a vapor stream comprising dianhydro sugar alcohols, such as isosorbide, and water vapor.

REFERENCES:
patent: 4564692 (1986-01-01), Feldmann et al.
patent: 6407266 (2002-06-01), Bhatia
patent: 6639067 (2003-10-01), Brinegar et al.
patent: WO 0014081 (2000-03-01), None
patent: WO 0041985 (2000-07-01), None
Beck, et al., “Acid Catalyzed Dehydration of Alditols, Part I. D-Glucitol and D-Mannitol”, Acta Chemica Scandinavica B, 1981, pp. 441-449, vol. 35, Lyngby, Denmark.
International Search Report dated Apr. 17, 2003.

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