The Dow Chemical Company

James A May, Sr

Martin A Langhorst

Gerard C Sinke

By providing about 1 percent of an extremely finely divided powder, e.g. less than about 60 microns, disposed throughout a body of sodium chloride particles, the salt particles can be heated without caking to temperatures higher than otherwise obtainable without experiencing caking. Suitable powders include those binary oxides, carbonates, sulfates, phosphates and hydroxides of Group II and Group IV elements, which are solids within the temperature range to be encountered.

Method for preventing evaporation-condensation caking of sodium chloride

A body of particles of sodium chloride (1) initially containing sodium sulfate and/or sodium carbonate, and/or (2) exposed to compounds capable of reacting in situ with the sodium chloride and/or with each other to form sodium sulfate and/or sodium carbonate, is maintained free from caking at temperatures within the range of from about 610.degree. C to at least about 700.degree. C by maintaining such a body substantially free from sodium sulfate and/or sodium carbonate. One or more compounds, at least one of which contains calcium ion, are provided in the system to react with any sodium sulfate and sodium carbonate present in the system initially, and with any compounds in the system which would otherwise react to form sodium sulfate and/or sodium carbonate. One aspect of this invention enables the operation of a fluidized bed reactor at more efficient operating temperatures than previously attainable in the incineration of organic matter contained in an aqueous sodium chloride brine over a bed of sodium chloride fluidized by gases from the combustion of sulfur-containing fossil fuels and fuel oils.

Method for preventing eutectic caking of sodium chloride at high

A force flow valve type shipping bag including a vapor barrier ply, incorporating a valve-like sealable vent communicating between the exterior of the bag and the space between the vapor barrier ply and the inner wall plies of the bag.

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Midland, MI, United States of America

James A May, Sr