Mill Operating Work Index Calculator (Ball/Rod/SAG)
Measure and Evaluate Flotation Tail Losses
In this example, the losses of chalcopyrite to the copper scavenger tail is equivalent to about 10 percent of the copper in the ore. Losses of liberated chalcopyrite are minimal accounting for less than 1% of the copper in the feed. Most of these losses occurred as grains sized smaller than 14µm in equivalent diameter. About 55% of the […]
Laboratory Graduated Burette
BURETTE, Exax Blue Line—Complete with tubing tip and pinchcock clamp. BURETTE, Schellbach—With dark colored stripe on white background, bringing the meniscus to a sharp point by optical distortion and thus facilitating reading. Complete with tubing tip and pinchcock clamp. BURETTE, Exax Blue Line—With straight glass stopcock. Calibrated at 20° C. BURETTE, Normax—With straight stopcock. Graduated to meet […]
Laboratory Barometer
BAROMETER, Avon Stormoguide, Taylor—Brown mahogany finished cherry frame 5×5 inches, with a 3¾ inch white enameled metal dial with black figures and forecasts. Good quality American movement with adjustable setting for altitudes to 3,500 feet. BAROMETER, Aneroid, High Altitude, Taylor—Lacquered brass case 5 inch diameter, with closed enamel metal dial. Good grade movement, with revolving altitude adjustment, for […]
Conical Ball Mills Benefits & Advantages: Hardinge
The generally recognized fact that for economic reduction of any material, it is desirable to perform such reduction in steps or stages, removing that material which is sufficiently fine as soon as it is reduced and grinding it still finer in some device more adaptable to this finer reduction. It has been found that by […]
Silver & Gold Cyanide Leaching of Copper Ore
Much work has been done on the effect of copper in cyanide solutions on the leaching of gold. It is generally accepted that copper in cyanide solutions can form complex ions such as Cu(CN)2-, Cu(CN)3=, and Cu(CN)4=-, although Cu(CN)3= is considered the most probable of these. According to leach scientists, the complex having an empirical formula […]
flips
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TRIPOD and Troughs
TRIPOD, Iron—Japanned cast iron ring 1¾ inches inside diameter by 3 inches outside diameter, mounted on steel legs. Height, 8 inches. TRIPOD, Concentric Ring, Iron—Japanned cast iron concentric rings, with 5/16 inch diameter by 9 inches high removable copper plated steel legs. TROUGH, Pneumatic, Improved Form—Shaped for “nesting” and stacking. Made of heavy, galvanized iron, with […]
Effect of Regrinding
To ensure adequate mineral liberation is achieved ahead of the dilution cleaner circuit, a regrind mill is installed on the combined copper rougher-scavenger concentrate stream. See below the mineralogically limiting grade recovery chart, summarizing the theoretical limits to metallurgy imposed by the mineralogical associations in the cleaner circuit streams: Regrinding of the copper rougher-scavenger […]
Laboratory Alcohol Burner Lamp
BURNER, Alcohol—Of glass. Adjustable to any position, and more powerful than No. 17810. Complete with wick. WICK only—For above. BURNER, Alcohol—Glass, heavy nickel plated brass burner and cap. Complete with wick. BURNER, Alcohol—Of brass, with cap, wick holder and wick. BURNER, Alcohol—Made of polished brass. Will burn either alcohol or sperm oil. Complete with wick and […]