Bulletin . B. CONVEYING TAILINGS INTO MILL WITH BUCKET ELEVATOR FOR OBE-DEESSING PRACTICE. 115 RETREATMENT OF TAILINGS. In the retreatment of tailings, certain conditions are essential toinsure a good recovery of the mineral content. A few tailing pileshare yielded good profits, but many piles have been retreated withoutsufficient testing previous to retreatment to determine the characterof the material and the mineral recovery possible. Screen analyses ofrepresentative samples and assays of the screen products are necessaryin determining the value of a taiUng pile and the kind
Bulletin . B. CONVEYING TAILINGS INTO MILL WITH BUCKET ELEVATOR FOR OBE-DEESSING PRACTICE. 115 RETREATMENT OF TAILINGS. In the retreatment of tailings, certain conditions are essential toinsure a good recovery of the mineral content. A few tailing pileshare yielded good profits, but many piles have been retreated withoutsufficient testing previous to retreatment to determine the characterof the material and the mineral recovery possible. Screen analyses ofrepresentative samples and assays of the screen products are necessaryin determining the value of a taiUng pile and the kind of equipmentnecessary for obtaining the best results. Screen analyses and assaysof samples taken from many different tailing piles throughout thedistrict have shown that the recoverable values were in the finer sizematerial, whereas others, where the ore treated was chatty, showedthe values in the coarser sizes. Screen analyses of tailings for retreat-ment will show whether the tailings need fine grinding or whether onlya system of screening will be necessary. Chemical analyses
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
