How to profit from lowgrade gold mines
Along with a low strip ratio, the other factors helping Atlantic Gold control costs are: the mines close proximity to labor, suppliers and the airport; a g/t grade; and ease of gold recovery.
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Along with a low strip ratio, the other factors helping Atlantic Gold control costs are: the mines close proximity to labor, suppliers and the airport; a g/t grade; and ease of gold recovery.
The loaded carbon is periodically removed from the columns, and sent to the stripping circuit. The carbon is then generally subjected to a heated solution (200 deg to 250 deg F) of (1%) sodium hydroxide and (%) cyanide and the gold is redissolved and removed from the carbon surface.
The maximum allowable Stripping Ratio (SR max) defines break even stripping ratio (BESR).This represents the highest possible units of waste that can be handled. If the SR exceeds the BESR then the operation will be uneconomical as the income generated by the ore is insufficient to offset the costs incurred in mining.
#0183;#32;Stripping ratio is a term that is derived from the mining industry and is used in reference to the openpit mining process. The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of
Stripping ratio Wikipedia
#0183;#32;Technical information like ore grade, overburden, interburden, stripping ratio, recovery rate; and financial and mineral market information like ore concentrate prices, free risk rate, debt costs, etc., has to be gathered to measure how risky a gold mining project is .
The units for stripping ratios can vary and usually depends on the geological properties of the deposit and the commodity mined. It can be expressed in tonnes (t), or cubic meters (m 3).Usually for coal, cubic meters (m 3) or tonnes (t) are, for hard rock mines where the geology is usually complex with the presence of various rock types, tonnage (t) is usually preferred.
6. Stripping ratio . The main factor in designing a n open pit mine, which largely determines the cost of mining, is the stripping ratio.. Stripping is the removal of waste rock from above and around the orebody. Stripping ratio is defined as the tonnage of waste rock to be mined, divided by the tonnage of ore to be mined from the pit.
Calculating Stripping Ratios for Area Strip Mines
The ratio of overburden excavated to the amount of mineral removed is called the stripping ratio. For example a stripping ratio of 4:1 means that 4 tonnes of waste rock are removed to extract one tonne of ore. Lower the ratio, the more productive the mine. Stripping ratio varies with the area under mining. According to the data generated by
The stripping ratio is also influenced by the types of overlying geology especially if you have thick alluvials overlying hard rock. The density and RQD are important for each rock type which will
Stripping Ratio SR Breakeven Stripping Ratio BESR The Net Present Value NPV is a very important tool used for decision making in the mining It is used to evaluate a project or investments presentday worth A total of over 4 million tonnes of gravel were treated to produce over 65 tons of gold
#0183;#32;Stripping ratios arent often discussed, but they can be an early and important indicator for mining projects. Heres what investors should know about them. A strip ratio, or stripping ratio
Open pit mining is generally less expensive than underground mining. Whether or not a deposit can be open pit mined will depend on the shape and depth of the ore deposit. The main issue for an open pit mine design is the strip ratio. This ratio indicates the amount of waste (rock without gold) that must be extracted to access ore rock.
In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore wil...
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