Plant for Zinc Precipitation of Gold
Cyanide Precipitation Equipment is designed to meet the demands of cyanide plants for a low cost, efficient method of precipitating gold and silver from a cyanide solution. Metallurgical results obtained with this equipment have proved highly satisfactory and usually compare favorably with results obtained with more complicated processes although the machines are simple and inexpensive. […]
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Timber Framing Equipment
Timber Framer is a necessary piece of equipment for any mine using considerable mine timbers. Framing timbers by hand has become obsolete at larger properties since the development of this economical and efficient machine. In operation a log is placed in the chucks and pushed through the saws; the chucks are then thrown over ninety […]
Solvent Extraction Training SX Course
Solvent extraction, the process of extracting a specific metal valve from a solution to concentrate and purify that metal is a multistage process involving liquid ion exchange. In the first stage the metal value, in this example copper, exists in the aqueous leachate as an copper ion. The aqueous leachate is mixed with a organic […]
Concentrator Metallurgical Continuous Sampling Analysis
Development and use of on stream analysis for both wet and dry processes promises great advantages in processing and quality control. In many cases the volume handled by an on stream analyzer must be far less than the total stream volume. Moreover, the accuracy of the analyzer report depends directly on the small sample presented […]
Leaching Mercury Sulfide
Hydrometallurgical methods have received increased attention for the treatment of many ores in recent years. Whereas, direct furnacing has been regarded as the standard process for mercury (cinnabar) ores, hydrometallurgical methods offer an alternate consideration. The chemistry of this process is not new, but with the impetus to hydrometallurgical methods, it is only logical that […]
Roasting Silver Ore
Roasting Silver Ore
Copper LPF Leach Precipitation and Flotation Process
The LPF process is uses for treatment of copper ores in which part or all of the copper occurs in oxidized form presents a problem for recovery. Sulphidization of the oxidized copper minerals using sodium sulphide or sodium sulphydrate is sometimes effective to render the minerals floatable, but generally sulphidization techniques produce low recoveries. Many […]
Potash Flotation Process
Potash occurs in soft deposits generally associated with sodium chloride and varying amounts of clay slime, which because of its colloidal character, complicates the beneficiation process. Potash ores generally contain 20 to 40 percent KCL with the balance being NaCl and a small amount of clay slime, the latter usually in the order of 1 […]
How Gold Is Made for Kids
Randal Birkey was commissioned by a Denver, Colorado graphic design firm in the 1980’s to prepare a series of illustrations on “How Gold is Made for Kids”. The illustration series was to be used by their client, Santa Fe Pacific, (now Newmont Gold), in printed corporate communication brochures, posters and other tools. The series was […]