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11 results returned

Annual report of the nonmetals division, fiscal year 1940

Minerals used in welding

Report of the nonmetals division, fiscal year 1941

Lamellar grading of powdered mica

Contact potential in electrostatic separation

An electrostatic separator for fine powders

Fluorescent minerals used in lighting and elsewhere

Perlite, source of synthetic pumice

Dielectric constant in air-ambient electrostatic separation

Electrolytic preparation of zinc dust

Anodic deposition of manganese dioxide

Published Year

• 1940-1949 (11) *

Subject

• Electrostatic separators (3)
• Nonmetallic minerals (2)
• Nonmetals (2)
• Coal mines and mining (1)
• Dielectrics (1)
• Electrolytic oxidation (1)
• Fluorescent minerals (1)
• Manganese oxides (1)
• Manganous sulfate--Oxidation (1)
• Mica (1)
• Ore-dressing (1)
• Perlite (1)
• Welding (1)
• Welding industry (1)
• Zinc--Electrometallurgy (1)
• Zinc--Metallurgy (1)

Author

• Ralston, Oliver C. (11) *
• Fraas, Foster. (4)
• Stern, A. George. (2)
• Conley, John E. (1)
• Eckardt, Walter. (1)
• Marx, Peter. (1)
• Von Bernewitz, M.W. (1)

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