De-icing chemicals and their preparation from polysaccharide sou

Details De-icing chemicals and their preparation from polysaccharide sou De-icing chemicals and their preparation from polysaccharide sou

1982-01-12

1984-02-07

Page, Thurman K.

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

106 2, 106 13, C09K 318

Patent

active

044302401

ABSTRACT:
De-icing chemicals intended primarily for de-icing pavement such as roads, ridges, and runways are prepared from polysaccharide sources (e.g. waste products such as sawdust) by reaction at elevated pressure and temperature with alkaline earth metal oxides or hydroxides in the presence of water. The de-icing chemicals are impure mixtures of alkaline earth metal salts of acetic acid, lactic acid and glycolic acid with the mixture being substantially free of alkaline earth metal salts of oxalic acid and formic acid. The de-icing chemicals are intended to be a substitute for the inorganic chloride salts (e.g. sodium chloride) commonly used for de-icing highways.

REFERENCES:
patent: 4351669 (1982-09-01), Nielsen
patent: 4377488 (1983-03-01), Gancy

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