Process for recovering pure crystalline monoanhydrohexitols and

Details Process for recovering pure crystalline monoanhydrohexitols and Process for recovering pure crystalline monoanhydrohexitols and

1983-07-18

1986-01-14

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549476, C07D49304, C07D30720

Patent

active

045646929

ABSTRACT:
A simplified economical process is provided for preparing pure anhydro sugar alcohols by a controlled crystallization from concentrated aqueous solutions or melts containing these alcohols. These pure anhydro sugar alcohols are useful as polyol components in making polyester and polyurethane polymers.

REFERENCES:
patent: 2315699 (1943-04-01), Goepp, Jr.
patent: 2390395 (1945-12-01), Soltzberg
patent: 3160641 (1964-12-01), Hartmann
patent: 3484459 (1969-12-01), Hartmann
patent: 4313884 (1982-02-01), Arena
Tipson, Technique of Org. Chem., vol. III, Part I, Separation and Purification--Editor Weissberger, (1956), Chapter III, pp. 395-398, 485-490 and 512-514.
Beilstein's Handbuch der Organischen Chemie, 4th Ed., 1933, vol. 17, p. 191.
Hockett et al., J. Am. Chem. Soc., 68, 927-935, (1946).

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