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A Mineral Dressing And Economic Study Of A Complex Arsenical Ore, Luigi D. Piana
A Mineral Dressing And Economic Study Of A Complex Arsenical Ore, Luigi D. Piana
Bachelors Theses and Reports, 1928 - 1970
The factors that influence the choice of a method for treatÂment of an ore comprise the technical and economic limitations and advantages, derived in detail and balanced according to the exigencies of the particular situation.
Preliminary Floatation Tests On The Beneficiation Of A Low-Grade Montana Bituminous Coal., William Packwood Given
Preliminary Floatation Tests On The Beneficiation Of A Low-Grade Montana Bituminous Coal., William Packwood Given
Bachelors Theses and Reports, 1928 - 1970
Coal is an aggregation of vegetal matter with varying small amounts of mineral and animal matter which have been so changed by the processes of sedimentation, decay and metamorphism that it has become a dense, dark, combustible substance. It occurs in beds varying in thickness from one foot or less to over 300 feet. The horizontal extent of a bed is sometimes continuous over an area as large as the State of Montana.