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Removing quartz and other impurities from refractory clays by mineral dressing methods
Methods for producing alumina from clay :an evaluation of five hydrochloric acid processes
Beneficiation of refractory clay
Behavior of clays associated with low-rank coals in coal- cleaning processes
The hydrocyclone in clay beneficiation
Methods for producing alumina from clay :an evaluation of three sulfuric acid processes
Lightweight aggregates :expansion properties of selected Iowa shales, and loess
Expanded clay and shale lightweight aggregate industry in the south-central United States
Methods for producing alumina from clay :an evaluation of two ammonium alum processes
Methods for producing alumina from clay :an evaluation of a lime-soda sinter process
Investigation of operating variables in the attrition grinding process