Carbon In Pulp

Carbon In Pulp (CIP), also known as gold-loaded carbon extraction, is a high temperature and high-pressure cyanide-free process for desorbing and electrolyzing gold-loaded carbon. This process involves adding activated carbon directly to cyanide-leached slurry to adsorb gold through countercurrent absorption. Subsequently, the gold-loaded carbon undergoes desorption under high temperature and pressure, and the resulting pregnant solution is transferred to an electrolytic cell, where gold is deposited on the cathode plates, ultimately yielding gold mud. The gold-depleted carbon can be regenerated through acid washing and reactivation in a furnace, and this cycle is repeated until the activated carbon can no longer be reused. At that point, all remaining gold is recovered through physical combustion. The CIP process differs from the CIL process in that it involves leaching first and then adsorption.

Carbon in Pulp Gold Processing

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The CIP gold extraction process primarily includes seven operational stages: preparation of the leaching pulp, cyanide leaching, activated carbon adsorption, gold-loaded carbon desorpRaw ore is crushed and screened to form fine ore, which is more suitable for gold leaching.tion, obtaining gold mud through electrolysis, recycling of desorbed carbon, and treatment of the leached pulp. The main steps are: pulp impurity removal, leaching and adsorption, desorption electrolysis, and smelting. This process is applied to flotation gold concentrates or amalgamation, gravity separation tailings, and clayey oxidized ores.

Crushing and Screening System: Raw gold ore is crushed and screened to form fine ore, which is more suitable for gold leaching.

Grinding and Classification System: Fine ore is further ground and classified to achieve the optimal particle size for the leaching process, enhancing gold recovery rates.

Pre-Leaching Concentration: The ground ore slurry undergoes thickening and debris removal before cyanide leaching. Activated carbon is added to the leaching tanks to adsorb gold, preparing the slurry for the desorption process.

Desorption and Electrolysis: Gold-loaded carbon undergoes high-temperature and high-pressure desorption. The gold is then recovered through electrolysis, producing gold sludge, which is further refined in the metallurgical process.

Carbon in Pulp (CIP) Equipment

CIP gold processing equipment typically includes jaw crushers, cone crushers, and circular vibrating screens for the crushing and screening stages. In the grinding and classification system, it features ore bins, wet grid type ball mills, hydrocyclone clusters, and slurry pumps. For the pre-leaching concentration, the system includes debris screens, thickeners, and leaching tanks where activated carbon is added for gold adsorption. The desorption and electrolysis system comprises desorption columns and electrolytic cells. These components work together to efficiently extract and process gold from ore into high-purity gold products.

Carbon Separation Screen