In gold cyanidation plant, although part of the cyanide wastewater has been returned for reuse, there are still some cyanide wastewater or cyanide residue discharged. Cyanide is highly toxic, so these cyanide wastewater must be treated professionally before discharging to avoid the environment pollution and damage to human and animal health.
The gold cyanidation method is welcomed by many gold mine owners all over the world because of its simple process and high recovery rate. Before we have talked about how is sodium cyanide consumed during gold cyanidation process , this article will show you how to reduce the consumption of sodium cyanide.
Reduce mine processing plant and storage footprint Reduce rehabilitation costs at end of mine Provides simplified gold recovery process and producing premium certified Clean Gold Mines that use a cyanide based plant require tailings dams to hold the tailings long enough for the cyanide to be destroyed.
Gold cyanidation is a hydrometallurgical technique for extracting gold from low grade ore by converting the gold to a water soluble coordination complex.
A number of processes for recovering cyanide from gold plant barren solutions or pulps have been developed. In most cases, cyanide is recycled by first converting it from the free or WAD complexed form in which it exists in gold plant tailings, to hydrocyanic acid gas .
cyanide destruction and cyanide recovery costs for a fairly generic high cyanide consuming case. The capital cost of a cyanide recovery plant could pay back in less than 2 years in many cases, particularly when high cyanide consumption is associated with copper mineralisation in the ore. As a broad generalisation, cyanide recovery
Nature of Gold: The surface of a gold particle will typically be dissolved at a rate of around 0.2 0.5 µm of surface depth per hour in a cyanide leach. For large gold particles and nuggets, this is too slow to be fully dissolved in a typical processing plant. Much simpler and less expensive gravity methods are available to recover this gold.
GREEN GOLD TECHNOLOGY can provide a significant opportunity to reduce operating costs and at the same time improve environmental performance. The resin based process offers a proven method for achieving virtually complete removal and efficient recovery of cyanide, dissolved base metals and precious metals from gold plant process streams.
involving trucks carrying cyanide to gold plants, etc.). The cost of recovering and recycling cyanide from tailings will generally . be lower than the cost of purchasing new cyanide. When this cost benefit is added to the lower cost of tailings detoxification, a strong case can frequently be made for cyanide recovery.