 ... hence larger grains can more readily pass into the hutch. An examination of the tailings indicated that the loss in the fine material was very small, but by far the largest loss was in the four coarsest sizes, which were mixed grains or middlings,...  The Theory and Practice of Ore Dressing - Page 323by Edward Saxton Wiard - 1915 - 426 pagesFull view - About this book
 | Royal Preston Jarvis - 1908 - 82 pages
...sizes, which were mixed grains or middlings, and to reduce this loss further crushing must be done. The results indicate that in order to separate sphalerite...at least three compartments should be used ; since smaller differences in the specific gravity of these minerals require a longer time to effect the separation.... | |
 | 1908 - 1244 pages
...sizes, which were mixed grains or middlings, and to reduce this loss further crushing must be done. The results indicate that in order to separate sphalerite...at least three compartments should be used ; since smaller differences in the specific gravity of these minerals require a longer time to effect the separation.... | |
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