29/2/2016· If the solution is rich enough can be treated by zinc powder and the precipitated obtained obtained will be sent to retorting and smelting. For gold extraction the strength of cyanide solution ranges from 0.01 to 0.05%. Lime is added to the process in order to have a pH near to 10 11.
The first step in gold extraction is leaching the gold which turns gold in solid form to liquid with cyanide in the presence of oxygen. Next, the gold adsorbs to the activated carbon. Finally, the carbon and gold complex is sent to elution where it is washed, and transferred to electrolysis where the gold is
The common processes for recovery of gold solution includes: Carbon adsorption, Merrill Crowe process, electrowinning and ion exchange / solvent extraction. Traditionally, Merrill Crowe process was used to remove gold from a cyanide solution
1.2 THE RECOVERY OF GOLD BY CY ANIDATION AND CIP/CIL PROCESSING 2 1.2.1 Cyanidation chemistry 2 1.2.2 Adsorption of aurocyanide onto activated carbon 3 1.2.3 Adsorption of aurocyanide at the ore surface 4 1.2.4 CIP/CIL processing of ores 5 22.214.171.124 Cyanide losses during CIP /CIL processing 7 1.2.5 Modelling of the CIP/CIL process 8
line of all sliming cyanidation cip process cip process. all sliming cyanidation cip method to gold smelting process refers to all the gold ore grinding pulverized pulp mesh content of 90 95 the first cyanide leaching and then use activated carbon absorb charcoal gold directly from the slurry the process includes the following steps preparing ...
Process Introduction. CIP process is a high efficient method to leaching and recovering gold from gold ore, The most different from CIL process is in CIP process, gold leaching and adsorption are separated, first leaching, and then adsorption. Now it is being replacing by CIL process