Method for drying erythritol crystals

Details Method for drying erythritol crystals Method for drying erythritol crystals

1992-06-25

1993-04-13

Cintins, Marianne M.

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

Organic compounds

Oxygen containing

568913, C07C 3122

Patent

active

052025071

ABSTRACT:
A method for drying erythritol crystals having a moisture content of from 1 to 10% by weight to reduce to the moisture content of 0.15% by weight or below, which comprises drying under fluidized state wherein a temperature of a gas to be used in the fluidized drying is controlled within a range of from 10.degree. to 60.degree. C. at least until the moisture content of said crystals is reduced to 0.5% by weight or below.
The moisture content of erythritol crystals (moisture content: 1 to 10% by weight) can be highly efficiently reduced to 0.15% by weight or below in a stable form without deteriorating the crystalline properties and form by fluidized drying said erythritol crystals with the use of a gas flow of a relatively low specific temperature.

REFERENCES:
patent: 3035060 (1957-06-01), Binning et al.
patent: 3308171 (1965-05-01), Oikawa
patent: 5139795 (1992-08-01), DuRoss
Vogel, Practical Organic Chemistry, Wiley, 1962, pp. 133-139.

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