processing of gold with cyanide

A Review on Alternative Gold Recovery Reagents to Cyanide After gold content is increased by physical and mechanical methods the concentrate is used as feeding ma-terial for next steps. Gold concentrates are processed by chemical methods in order torecover up to 99% gold, depending on type and efficiency of the processes [14]. The widely used chemical treatment process is the leaching with cyanide. MODELING OF GOLD CYANIDATION - Sono-Dyne Inc The chemistry of gold dissolution in alkaline cyanide solution has continually received attention and new rate equations expressing the gold leaching are still developed. Introduction to Cyanide Gold Mining silver from 1991 to 1995. Operations included the heap leaching of gold from ore, using a weak cyanide solution. Nevada Goldfields used seven processing ponds and one sediment pond to process the "pregnant" solution that contained the gold. After the closure of the mine, the approximate 10-acre Main Pit began to fill with water. Cyanide Solution | Cyanide Process | Recover Gold From ... CN Process CN process can be used for removing gold from gold plated electronic waste like connectors, fingers, jewellery and any other stuff which has gold polish on it. For the recovery of gold through this method one has to use commercial grade sodium CN (NaCN) because is less risky and cheap than potassium CN.    Read More