Suspension dolomite

Bodies of Water and the Chemical Sediments ,— The chemistry of the deposition of salts from sea-water has already been made the subject of special research, and van t Hoff s results in this field are already familiar. The deposition of calcium carbonate awaits a similar thorough study. Allied questions are the formation of dolomite, the deposition of various salts from inclosed bodies of water, the deposition of phosphate rocks, the precipitation of colloidal suspensions of clay and other substances, and the origin of the great deposits of sedimentary iron ore. 

Bechtel Seawater A flue-gas desulfurization process using a suspension of dolomitic lime in seawater. The calcium sulfate produced is returned to the sea. A conceptual design, not known to have been piloted. 

Fluidized bed combustion of coal is used to reduce the emission of sulfur dioxide and NO into the enviromnent. In this technology the pulverized fuel is burnt in a fluidized bed combustor after being blended with limestone or dolomite, which act as soibents for SO2. The burning temperature is significantly lower than is common in the production of fly ashes in suspension-fired furnace chambers, at around 850°C. The process may take place at atmospheric pressure (atmospheric fluidized bed combustion, AFBC) or elevated pressure (pressurized fluidized bed combustion, PFBC). 

Magnesium in suspensions M8 nesium oxide Potassium magnesium sulfate, fine Magnesium carbonate Fluid lime (dolomitic)... 

Another use of clay as filler materials is in the petint industry, as extenders. In addition to BaS04, CaCOa, CaMg(COa)2 (dolomite) and SiOa (quartz or flint), kaolinite, smectites, talc, mica and up to a decade or so ago, asbestos (Warren, 1973) are used as extenders in paints. Smectites are especially helpful in improving the suspension stability (i.e., preventing the sedimentation of solids) of paint (Scott and Witney, 1972). 

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