Salt block release agents

Details Salt block release agents Salt block release agents

1993-04-29

1995-12-26

Nakarani, D. S.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

23303, 23313R, 264112, 264121, D04H 116, C01D 130

Patent

active

054785154

ABSTRACT:
A water soluble dicarboxylic acid acts as a mold release agent for salt blocks when it is sprayed as a fine powder into the block press mold box just prior to a charge of salt. The acid has from 6 to 10 carbon atoms; adipic acid is a preferred release agent. The salt block having a layer of the acid on it surface may be used in water softening systems wherein the block sits in a brine reservoir and supplies salt for the recharging of an ion exchange resin. There is no build up of an unsightly scum on the surface of the brine and on the sides of the reservoir as there has been with the use of calcium stearate as the release agent.

REFERENCES:
patent: 2769787 (1956-11-01), Diamond
patent: 3042531 (1962-07-01), Leal et al.
patent: 3618759 (1971-11-01), Kolasinski et al.
patent: 3682601 (1972-08-01), Fedosoff et al.
patent: 4769159 (1988-09-01), Copeland

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