Gold cyanidation is a hydrometallurgical technique for extracting gold from low-grade ore by The basic ore slurry can be combined with a solution of sodium cyanide or potassium cyanide, .. Lixiviant Heap leaching Dump leaching Tank leaching In situ leaching Gold chlorination; Gold cyanidation; Bayer process.
The total amount of the hydrogen-peroxide solution required for leaching is fed to 20 % into the first of up to ten cascaded leaching tanks traversed by the slurry. The leaching of gold and silver in cyanide solutions when using NaCN takes
mately 1 000 as 100% NaCN tons of cyanide per month representing for cyanide control at Ergo has been one of leachcost optimization. However, more recently top tank to about 18 to 20 ppm in the second to fourth stages after which it
during gold ore leaching and to remove mercury from cyanide leach solu- tions. Mercury dissolution NaCN concentration from 20 lb to 0.34 lb per ton of solution at a pH of. <11. When 0.1 lb .. to the last tank prior to entering the. CIP circuit.
of cyanide and sodium hydroxide to maintain a high pH of 10 to 10.5. This test work will tell you if your ore is amenable to cyanide leaching and will help length of time—say 24 hours—in an agitated leach tank.2 These are the gold particles
FACTORS AFFECTING THE RATE OF THE CYANIDATION REACTION. .. hybrid circuit as the first tank of each train are purely leaching tanks no When Sodium Cyanide NaCN is added to water the cyanide portion of the molecule.