The soaring price of gold could add billions of dollars to the value of South Africa's exports in the second half of the year.
GV AND SV Water cannons spraying into walls of slimes (slag) and water running down gulley (3 SHOTS)
GV Water running through sleuce to flotation plant
GV Water gushing into holding tank
SV AND GV Flotation plant where slurry diluted and sulphuric acid added to separate valuable minerals (2 SHOTS)
GV Gold plant for finishing stages
SV ZOOM INTO CU Gold being poured into ingots (3 SHOTS)
GV Gold ingots being carried across plan??? to be weighed
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Background: The soaring price of gold could add billions of dollars to the value of South Africa's exports in the second half of the year. It will also provide the South African government with a windfall mining tax revenue, and will be a vital buffer to the high prices the country has to pay for oil. In light of the boom new methods are being devised to recover even more gold from old workings. One process is known as the Ergo method.
In the early days of gold mining, the refining processes were primitive when compared to those of today. Some of the Witwatersrand mines are about forty years old and a significant quantity of gold was left in the slimes or dumps. Specially built, rem??? trolled and ??? rated water ??? walls and ??? the s??? for reprocessing.
After screening, the slurry is pumped to the flotation plant, where it is created with sulphuric acid, then ground to expose the gold particles. After zinc and lead filtrates are added to separate out the gold, the solids formed are called gold slime.
One and a half million tons of slimes are treated every month with an output of more than one thousand pounds of gold monthly. Other products of the process include tons of uranium and sulphuric acid.
???ring the past ten years South Africa's gold mining production has averaged more than eight hundred tons, or seventy-five percent of the free world's output. Canada, the record largest, produces only about seven percent.
This operation may be a drop in the bucket in South Africa's gold production, but with gold prices soaring, that drop is very significant.