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Carbon in Pulp (CIP) gold ore extraction line

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Jiangsu zhongbo Heavy Machinery
Jiangsu zhongbo Heavy Machinery
City: Shanghai
Province/State: Shanghai
Tel: 86-21-50115838
Contact Person:
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Carbon in Pulp (CIP) gold ore extraction line

Place of Origin : china
Brand Name : Shanghai Zhongbo Machinery
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Carbon in Pulp (CIP) processing gold raw ore feasibility Overview

The gold mine basic program of the CIP gold extraction process is raw ore finely ground, pre-screened, after dehydration by conventional cyanidation leaching gold minerals, and the monovalent gold cyanide pulp with activated carbon adsorption (NaAu (CN) 2), gold loaded carbon after washing sent desorption electrolysis process, and the high temperature and pressure without cyanide desorption electrolysis technology desorption electrolysis. Desorption of carbon after activation treatment by a certain percentage return CIP process, the electrolytic output the powder can direct smelting into gold bullion, the cyanide tailings Returns flotation recovery of copper. The program under laboratory conditions to achieve the desired effect, the metal recovery rate of 90% or more.

Carbon in Pulp (CIP) gold extraction process and technical points

Cyanide leaching process is formed by 5 specifications Φ4.0m * h4. 5 m and pulp artesian stirring inflatable leach tanks in series, from a height to the lower order and named 1 # -5 # leaching tank (# 1 pretreatment slot, # 2-5 the cyanide leaching slot), pulp full of # 1 slot by gravity followed by full back slot. During cyanide leaching process, maintaining the slot of sodium cyanide concentration of 0.03% to 0.07%, the basicity (CaO concentration) of 0.02% -0.03%, pulp pH = 10, cyanide leaching time was 8h, in this condition , the leaching rate of gold up to 98.5%.

When equilibrium of cyanide leaching of the respective grooves (longer consume NaCN), activated charcoal was added, in each of the grooves, and into a carbon adsorption operations.Adsorption process, with the center of the hollow shaft inflatable and maintaining continuous agitation, # 1 # -3 carbon density of 12-20 g / L, 4 # -5 # grooves carbon density of 20-30g / L, a carbon adsorption time6-8h, the absorption rate of more than 98%.

Carbon in Pulp (CIP) gold extraction process and technical points

Gold charcoal slurry process uses the pulp lifter, as well as the reverse string charcoal screen between each groove connection at the installation level.Charcoal adsorption equilibrium of each slot, CIP lifter containing charcoal slurry extracted from the # 5 slot to the # 4 slot, grade pulp to pass through sieve Back # 5 slot.The loaded carbon can not stay in the # 4 slot through the screen, and so on. Last loaded carbon all entered the # 1 slot.After the density of the loaded carbon after pulp lifter extracted from the # 1 slot for 1 mm vibrating screen cleaning, storage canister sealed and sent to the the desorption electrolysis process. Cyanidation tailings Returns the # 1 slotand enter jobs flotation recovery of copper.


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