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0.65 percent phosphorus 2.95 specific gravity 20.5 Agglomerate 8.5 percent Agglomerate Table Tests air-table rejects Air-Table Tests Bureau of Mines cake was satisfactory centrates combined concentrates concen concentrates assaying crude ore Weight deslimed downdraft sintering ferromanganese Float Sink Composite flotation concentrates Flotation test given in table Gravity and agglomerate high-grade Low-Grade medium of 2.95 mesh Metallurgical Division Metallurgist Minus Minus-4 Mn Fe Si02 oleic acid Ore-Dressing Section percent Assay percent iron percent manganese percent Mn Fe Percent of total percent Percent percent silica phosphorus and containing phosphorus content pound of sodium pounds of Calgon pounds of Goulac pounds of oleic Product Mn Fe Product percent Mn R. S. DEAN recovered resultant sinter cake Rolla S. M. Shelton sample was crushed shown in table Si02 P Mn silica were rejected Sinter test sio2 slimes Weight sodium silicate Tailings test of crude total manganese total Product Mn total Product percent trates treated by flotation