Show FLOTATION PLANT FOR PRINCE the prince consolidated mining smelting smelling Sm elting company operating at pioche nevada has ordered a flotation milling plant for immediate delivery and it is expected that it will go into commission in july and possibly earlier in speaking of the recovery that will be made and of values and tonnage murray C godbe of salt lake general manager for the company says during the year many tests have been made to determine the best process for the treatment of this material which consists of measured tons in the two pits the average assay being ounces gold ounces silver and 67 per cent lead the best results having been obtained in a preliminary way by means of oil flotation a complete test plant was installed at the mine by C F sherwood Sn Sli erwood metallurgical engineer and a series of tests made employing that process the results were highly satisfactory an average sample was then taken to salt lake city and check tested by the general engineering company of that place mr sherwood having the direction of this work has made complete report in every detail and the following excerpts are from his report figuring the value of the product obtained from flotation at its market value on the basis of 6 per pounds of lead and 50 cents per ounce of silver with smelter deductions we have a recoverable value per ton of tailings of deducting the total cost of handling and obtaining these values of which costs include all overhead charges amortization on plant etc leaves a total net profit per ton from flotation of tailings treated of this on tons amounts to net revenue derived from tailings it is the writers opinion that the recoveries will be greater in actual practice than those we have figured above work has been done along the lines of cyaniding cyan iding the tailings after flotation to increase the gold and silver recovery and I 1 am confident that it will realize at least net revenue from the above and the work that I 1 have done on your tailings I 1 strongly recommend that work ae once be started upon the erection of the mill you have in actual sight sure of recovery from flotation net with the additional recovery by cyaniding cyan iding of using extremely conservative figures in making this estimate it is the writers opinion that the net recovery will be in excess of |