Recovery and Separation of Molybdenum and Rhenium from a Process Solution

Analysis of Steelmaking Slags by Atomic Absorption Spectrophotometry Using Pressure Dissolution: 1978-1979

Naphthenic Acid Solvent Extraction of Rare-earth Sulphates

Recovery of Cerium and Lanthanum by Ozonation of Lanthanide Solutions

Differential Extraction of Rare-earth Elements in Quaternary Ammonium Compound-chelating Agent Systems

Copper Recovery from Chalcopyrite by a Roast-leach Procedure

Extraction Process for Upgrading Sm2O3 Using Selective Stripping Techniques

Extraction Behavior of Cerium-group Lanthanides in a Primary Amine-chelating Agent System

Reduction of Tetravalent Cerium and Its Application to Stripping from Tri-n-butyl Phosphate

Report of Investigations: no.7381 to date

Bureau of Mines Instrumented Impact Tester: Preliminary Studies, Issues 7661-7670

Water Jet Perforation: A New Method for Completing and Stimulating in Situ Leaching Wells

Investigation of Longwall Gateroad Roof Support Characteristics at Powhatan No. 4 Mine: Instrumentation Plan, Issues 8621-8640

Oxygenates in Automotive Exhaust Gas: Estimation of Levels of Carbonyls and Noncarbonyls in Exhaust from Gasoline Fuels, Issues 7661-7680

Extraction and Separation of Selected Lanthanides with a Tertiary Amine

Development of Equipment and Process for Extracting Cerium (IV)

Foam Concentration of Scandium

Evaluation of Technology for the Recovery of Metallurgical-grade Alumina from Coal Ash

Recovering Lithium Chloride from a Geothermal Brine

Liquid-liquid Extraction of Cerium