Extraction of Manganese from Georgia Umber Ore by a Sulfuric Acid-ferrous Sulfate Process (in Two Parts).: Countercurrent-decantation extraction and agglomeration of leached residue tests, Volume 1

Fine Grinding of Coal by a Turbomilling Process

Evaluation of Refractories for Aluminum Recycling Furnaces

Flash Reduction of Iron Ore

Recovery of Heavy Minerals from Sand and Gravel Operations in the Southeastern United States

Steam-induced Volatilization of Silica from Refractories

Ceramic Mold Inserts for Use in Ferrous Diecasting

Potential for Recovery of Rutile and Other Byproducts from Western Copper Tailings

Chemical and Physical Beneficiation of Florida Phosphate Slimes

Large-scale Continuous Attrition Grinding of Coarse Kaolin

Recovery of Phosphate from Florida Phosphate Slimes

Autogenous Attrition Microgrinding of Calcium Carbonate Minerals

Recovery of Manganese from Slag Formed by Selective Oxidation of High-manganese Pig Iron

Continuous Gaseous Direct Reduction of Low-grade Iron Ores in a Fluid-bed Reactor: Issues 7560-7659

Metallurgical Studies of Rhodonite Ores, Silverton District, Colorado (In Three Parts).: Melting, quenching, and acid leaching of concentrates and electrolytic recovery of manganese from solution. 3

Extraction of Manganese from Georgia Umber Ore by a Sulfuric Acid-ferrous Sulfate Process (in Two Parts).: Countercurrent-decantation extraction and agglomeration of leached residue tests. 1

Numerical Methods for Determining Streamlines and Isopressures for Use in Fluid-flow Studies: Issues 7621-7630

Report of Investigations: no.7381 to date

Heats and Free Energies of Formation of Vanadium Nitride and Vanadium Carbide: Issues 6161-6180

Face Ventilation in Underground Bituminous Coal Mines: Performance Characteristics of Common Jute Line Brattice, Issues 6721-6740