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A8 Detailed calcined kaolin feed rate data run 5 20
Equipment and operation of the miniplant
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10—mesh calcined kaolin acid leaching acid—soluble alumina Acrison ALUMINA MINIPLANT aluminum anorthosite antifoam agent Average bauxite Boulder City Bureau of Mines calcined kaolin feed campaigns Chemical analyses CHEMICAL REACTORS cined kaolin feed classifier 1 overflow clay—HCl miniplant crushed CSTR Dawsonite diluted dissolved Dwight L equipment feed stream five thickeners foam groupings of components HCl acid HCl free Hydrochloric acid increased kaolin feed rate kaolinitic lb/hr leach liquor leaching and solids-liquid major material balance calculations mesh runs metering pumps miniplant project minus 10—mesh calcined minus 8—mesh feed NaZO ND Not determined operation pct solids physical data process liquors raw pregnant liquor reactor train reflux condenser residues sample sands SCREEN sifier SiOz slurry solids-liquid separation sections solids—liquid separation circuit solubles solution solvent extraction spiral classifiers steady-state conditions steady—state stoichiometry table A—2 thickener 1 feed thickener 5 underflow thickener circuit TiOZ underflow pulp weight