Coarse-particle calcium/magnesium acetate suitable for roadway a

Details Coarse-particle calcium/magnesium acetate suitable for roadway a Coarse-particle calcium/magnesium acetate suitable for roadway a

1983-02-10

1984-12-18

Czaja, Donald

Compositions

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

264117, 423161, 423173, C09K 318

Patent

active

044889780

ABSTRACT:
A process for the manufacture of calcium acetate pellets suitable for surface deicing, which comprises slow addition of water to dried calcium acetate or to calcium acetate freshly prepared from reaction of hydrated or unslaked lime with concentrated acetic acid, in an agitated vessel designed to produce pellets. Pellets are dried to a critical residual water level to avoid their embrittlement. The relative amount of water used in the pelletizing process is highly critical, and depends upon the source of calcium acetate as well as the amount of magnesium ion in the pellet formulation.

REFERENCES:
patent: 4239736 (1980-12-01), Fenske
patent: 4320105 (1982-03-01), Nelli et al.
patent: 4377488 (1983-03-01), Gancy
patent: 4389323 (1983-06-01), Gancy
patent: 4400285 (1983-08-01), Gancy
patent: 4425251 (1984-01-01), Gancy
patent: 4426308 (1984-01-01), Gancy
patent: 4430240 (1984-02-01), Sandvig et al.
patent: 4430242 (1984-02-01), Gancy
patent: 4444672 (1984-04-01), Gancy
The Merck Index, Martha Windholz, Ed., "Calcium Acetate", 1976, p. 209.

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