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Bauxite: Float-and-Sink Fractionations and Flotation Experiments
From Introduction: "This report presents the results of an investigation of the physical properties and characteristics of bauxite, with special reference to the possibility of applying commercial methods of concentration to low-grade bauxite."
Date:
1929
Creator:
Gandrud, B. W. & De Vaney, Fred D.
System:
The UNT Digital Library
Coal-Washing Investigations: Methods and Tests
From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date:
1929
Creator:
Yancey, H. F. & Fraser, Thomas
System:
The UNT Digital Library