Transactions . Fig. 10.—General Arrangement of Slime-Plant Before Fiq. 11.—Three OF THE Agitation-Vats and Tops of Two of theDecantation-Vats of the Slime-Plant. CYANIDING SILVER-GOLD ORES OF THE PALMAREJO MINE. 277 it was rather lumpy and extremely cohesive. During this timethe agitation was very unsatisfactory and the percentage of ex-traction was consequently lower. A great deal of difficultywas experienced in discharging the vats, since the un-agitatedportion of the charge would remain in the pointed bottom ofthe vat as a tough, putty-like mass, after all the liquid portionhad
Transactions . Fig. 10.—General Arrangement of Slime-Plant Before Fiq. 11.—Three OF THE Agitation-Vats and Tops of Two of theDecantation-Vats of the Slime-Plant. CYANIDING SILVER-GOLD ORES OF THE PALMAREJO MINE. 277 it was rather lumpy and extremely cohesive. During this timethe agitation was very unsatisfactory and the percentage of ex-traction was consequently lower. A great deal of difficultywas experienced in discharging the vats, since the un-agitatedportion of the charge would remain in the pointed bottom ofthe vat as a tough, putty-like mass, after all the liquid portionhad been discharged, and could only be washed out by meansof a stream of solution or water under pressure. In suchcases, the most effective procedure was to attach a 2-in. hose toone of the valves on the solution-line and sluice the materialout, under pressure furnished by the pump, into the launderleading to the corresponding decantation-vat. Our experience,so far, seems to have demonstrated that, in order to obtainthe most satisfactory results under the present practice, t
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
