Approximately 300,000oz of gold and eight million ounces of silver were added to the mineral resources. in 2009, work began on an investigational study to estimate the underground mining potential and discover openpit reserves withigh grade and high stripping ratio. in august 2009, the mines first underground blast took place.

Copper nickel ore flotation processasic principle of coppersulfide nickel ore process is that it is better to let the coppers assimilate into the nickel ore. because it is easier to recovery cooper from the nickel concentrate. the process hasest advantageget the copper concentrate that hasow nickel rate directly. cases.

Copper processing isomplicated process that begins with mining of the ore less thanopper and ends with sheets of 99.99 pure copper called cathodes, which will ultimately be made into products for everyday use.the most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively,.

Crushing and separating mined silver ore once the ore has been mined and transported out of the mine, it goes throughariety of crushers which break down the ore into small chunks. the chunks of.

In other words,on of ore is only .0005 gold. so really, gold mining is much more complex than digging up nuggets and melting them down. gold ore must be carefully refined to get every molecule of the precious metal. the process for most mines involves tons of heavy machinery, water, electricity, chemicals, crucibles, and more.

Introduction to gold and silver leaching. the cyanide leaching process is the most important method ever developed for extracting gold from its ores. the early development of the process is attributed tocotchman, john stewart mac arthur, in collaboration with the forrest brothers. the method was introduced into south africa in 1890.

The flotation amp cyaniding method is the most important process among the whole, silver concentrate can be got in the process of flotation, then regrinding to the next process including cyaniding and leaching, countercurrent washing, zinc powder replacement, silver ingot can be finally got after electrolytic dissociation.

The manufacturingprocess. silver was first obtained in sixteenthcentury mexico byethod called the patio process. it involved mixing silver ore, salt, copper sulphide, and water. the resultant silver chloride was then picked up by adding mercury. this inefficient method was superseded by the von patera process.

The mining process. 1. mining open pit and underground. to define the ore from the waste rock, samples are taken and assayed. assay results are used to mark out areas of ore and waste rock, which are mined separately. some of the harder areas require blasting to loosen the rock prior to excavation by hydraulic diggers.

The mining process. ore processing. ore processing. at the processing plant, gold and silver are extracted from the ore. the processing plant alternates between treating ore from the martha mine open pit and from the favona underground mine.

This process takes the smelted gold and usingumber of methods removes the often difficult to remove metallic elements from the gold thus improving its final purity. the purest gold can be refined is about 99.999 and can only be achieved by use of the wohlwill process. next silver ore the mining process that transforms ore into bullion.

Underground mines are dug into the earths crust to find ore that contains silver. the tunnels are carved and then they dig out the rock in order to expose silver veins. the broken up ore bearing rocks are taken out of the mine with trucks or elevators and then crushed with drills and blasters.