Nov 24, 2018 · The 25 mm (1 in.) valve with the quick-disconnect fitting is used when carbon hangs up in the hopper. Acid washing is performed on every cycle. Concentrated hydrochloric acid is diluted with hot water to produce 3% acid at 80°C, and pumped through the carbon which is held in a rubber-lined storage vessel. The acid is kept in the carbon for one facilities required in carbon in pulp gold revery process . Gold CIP process carbon in pulp is one of the gold May 20 2020 1 Gold CIP method has strict requirements on activated carbon If the carbon is not strong enough it will be broken in the adsorption process which will cause the loss of gold with the broken carbon 2 The process is moreplicated and contains many process May 27, 2012 · The carbon-in-pulp option involves introducing activated carbon into the leached pulp, which attracts and absorbs gold particles, much like a sponge to water. Gold-Bearing Carbon. Because the gold-bearing carbon is much larger than the rest of the pulp matter, it can be easily parsed out by screening the substance through a wire mesh.May 04, 2001 1. Introduction. The carbon in pulp process for gold recovery involves treatment with cyanide under aerobic conditions at high pH, to give the Au(CN) 2 − ion, which is then recovered by adsorption on carbon, followed by elution of the Au(CN) 2 − in caustic solution and electrowinning of the gold.