Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...
Patent
1985-01-22
1986-08-19
Lieberman, Paul
Compositions
Frost-preventing, ice-thawing, thermostatic, thermophoric,...
106 13, 423155, 423173, 423430, 423637, 562607, 562608, C09K 318
Patent
active
046068368
ABSTRACT:
Finely divided lime, at any degree of slaking, is introduced in a steady stream into an agitated reactor designed to produce pellets or aggregates. Concentrated acetic acid is simultaneously introduced in a steady stream at a rate equal to the chemical combining rate required to produce calcium magnesium acetate. Water content of the reaction stream is critical; the mol ratio of water, including water of neutralization, to the calcium magnesium acetate product must fall in the range 3.3-7.0 in order to form the desired pellets and to avoid sticking, caking, and dust emanation from the reactor. Product pellets are drawn off in a stream from the reactor and dried for use as a non-polluting roadway and walkway deicer. Traction agent is optionally incorporated into the deicer pellets by introducing a steady stream of traction agent to the reactor simultaneous with raw materials introduction. Magnesium-to-calcium ratios greater than one are achieved by blending dolime with magnesium-rich ore.
REFERENCES:
patent: 4444672 (1984-04-01), Gancy
patent: 4488978 (1984-12-01), Gancy
Lieberman Paul
Wax Robert A.
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