A Low Cost and Secure Sodium Cyanide Supply Chain. Sodium cyanide cost contributes an estimated 5% towards cash costs for most mining companies and it is tied to longterm profitability. As a result a reliable low cost sodium cyanide supply partner is an important part of any gold mining company.
How is cyanide used in mining? A sodium cyanide solution is commonly used to leach gold from ore. There are two types of leaching Heap leaching In the open cyanide solution is sprayed over huge heaps of crushed ore spread atop giant collection pads. The cyanide dissolves the gold from the ore into the solution as it trickles through the heap.
Cyanide has been used in the mining industry for over a hundred years. In New Zealand despite the lack of stringent environmental safeguards for historical mining operations there are no long term adverse environmental effects from the use of cyanide in the mining industry.
Use in Mining International Cyanide Management Code
Cyanide is manufactured and distributed for use in the gold and silver mining industries in a variety of physical and chemical forms including solid briquettes flake cyanide and liquid cyanide. Sodium cyanide is supplied as either briquettes or liquid while calcium
Gold Extraction Process. Sod ium cyanide has been used in the extraction of gold from ore for over a century. Today it is still considered the most efficient extraction method with sodium cyanide used in the leaching process in most gold mining operations.
Toxic sodium cyanide has been used in gold mining since 1887 and it remains the primary reagent in use for gold processing today because it allows for efficient extraction of gold from lowgrade ore. Since a tailings dam burst at gold mining company Auruls Baia Mare mine in Romania in 2000 leaking cyanide into the Somes River and killing