In the CIP process, activated carbon is used to adsorb the gold directly from the cyanided pulp in a series of large adsorption tanks. Pulp flows continually from the first vessel to the last in the series, and the carbon is transferred intermittently by pumping in the opposite direction.
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This chapter focuses on the advances made in the design and operation of carbon-in-pulp (CIP) and carbon-in-leach (CIL) plants. Most of the advances over the …
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The Carbon-in-Pulp (CIP) Tank CAD model depicts a crucial component in modern gold processing plants. This tank facilitates the extraction of gold from ore by employing an advanced method. The model showcases a cylindrical tank with an integrated system for adsorbing gold onto activated carbon particles.
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Carbon adsorption The solubilized gold is adsorbed onto coarse granules of activated carbon in the tanks at the same time as the slurry flws from the fist CIL tank to the last. The carbon is retained in the tanks by using cylindrical, mechanically swept interstage screens, which are submerged in the pulp.
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This chapter focuses on the advances made in the design and operation of carbon-in-pulp (CIP) and carbon-in-leach (CIL) plants. Most of the advances over the last few years have been in the area of carbon management. Trends towards cyanide-free elution are becoming more prevalent, impacting positively on operating costs.
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The SGS carbon-in-pulp (CIP) / carbon-in-leach (CIL) modelling package is used to estimate the performance of a full-scale CIP or CIL plant and to derive the optimum …
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This chapter focuses on the advances made in the design and operation of carbon-in-pulp (CIP) and carbon-in-leach (CIL) plants. Most of the advances over the last few years have been in the area ...
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The gold CIP process includes seven operation stages: preparation of leaching pulp, cyanide leaching, carbon adsorption, gold-loaded carbon desorption, electrolysis to obtain muddy gold, de-gold carbon recycling, and treatment of leaching pulp.. Preparation of leaching pulp Grind the gold-containing material to a particle size suitable for …
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With carbon-in-pulp, the ore is finely ground and the gold is solubilised using a cyanide leach in a series of tanks. The granular activated carbon is added to the leached slurry, where the carbon adsorbs the gold from the slurry solution and is then removed from the slurry by coarse screening. Often a series of five or six agitated tanks are ...
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Estimating process design gold extraction, leach residence time ... also consumes cyanide, so its effect has to be accounted for in the case of carbon-in-leach (CIL) or carbon-in-pulp &,3 SODQW ÀRZVKHHWV 6LQFH FDQLGH LV DQ H[SHQVLYH UHDJHQW RIWHQ D PDMRU FRPSRQHQW RI SODQW RSHUDWLQJ FRVWV LW LV ... CIP or CIL tanks …
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The estimation of the gold content in a tank implies the knowledge of: • The volume of slurry and carbon in the tank (V). • The slurry ore concentration (w/w) in the tank (s). • The ore specific gravity (ρ s). • The carbon concentration in the tank (h) expressed in grams of carbon per litre of slurry and carbon. •
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In the carbon-in-pulp process activated carbon is mixed with a ground ore plus water slurry in which gold and silver cyanides are dissolved. After the precious metals are adsorbed onto the carbon, the loaded carbon is separated from the pulp and stripped. The barren pulp is disposed of as tailings …
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Cyanide leaching The same as the conventional cyanidation method, generally 5-8 mixing tanks. Carbon adsorption The cyanide pulp enters the stirring adsorption tank (carbon slurry tank). Add carbon to the …
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This paper describes the process issues and computer aids for designing leaching and CIP/CIL circuits for gold recovery. It does not address the calculation of air required for …
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The adsorption tanks are typically a quarter to a tenth of the size of the leach tanks. The CIL and CIP modes of operations occur in a number of tanks placed in series. Pulp flows continuously from the first tank to the last, while carbon is pumped counter current from the last tank to the first.
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Then reactivated carbon is added into tank 8. During a transfer the concentration of carbon in a tank may drop from 15 to 11 g/L. The carbon transfer is carried out by pumps with intake submerged 0.3–0.4 m below the surface. The mixing in the tank may push some carbon from the bottom of the tank to the surface producing …
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CIP Process Overview: Carbon-in-Pulp (CIP) is a widely employed method for gold recovery from ore. In the CIP process, the gold-laden pulp is mixed with activated carbon, which adsorbs the gold ...
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The carbon-in-leach process integrates leaching and carbon-in-pulp into a single unit process operation in which the leach tanks are fitted with carbon retention screens and …
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New activated carbon To tillings disposal Pulp from the leaching circuit P IS S Activated c arbon flow Pulp flow Figure 1: Schematic diagram of a carbon-in-pulp or carbon-in-leach plant with three tanks, showing the interstate screens (IS), the screen at the exit of the first tank (S), and the carbon transfer pumps (P).
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The amount of carbon in each 392 m 3 carbon in pulp tank is the main determining factor for gold extraction efficiency. Each tank requires up to 12 tonnes of carbon and 5 ppm dissolved oxygen to ...
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Schematic diagram of a carbon-in-pulp or carbon-in-leach plant with three tanks, showing the interstate screens (IS), the screen at the exit of the first tank (S), and the carbon transfer pumps (P).
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A steady-state simulator for CIP/CIL circuits has been developed. The simulator is based on a model of a single CIL tank. This model combines descriptions of the kinetics of leaching, the kinetics of adsorption, and the residence time behaviour of the pulp solids, leach liquor and carbon. This work was part of a co-operative research project between the Julius …
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The efficient design of carbon-in-pulp (C.I.P.) plants involves the integration of both process engineering and design engineering._x000D_ Many recently constructed plants have not recognised the above interrelationship, and as such have incurred higher capital and operating costs than were in reality necessary._x000D_ This has been compounded …
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The Computer-Aided Design ("CAD") files and all associated content posted to this website are created, uploaded, managed and owned by third-party users. ... activated carbon is used to adsorb the gold …
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The preg robbing components can either be fine clays or naturally occurring carbon within the ore. If a carbon-in-pulp (CIP) circuit were to be utilized for the processing of ore containing preg robbing components, then part of the gold dissolved in the leaching stage will be adsorbed by the carbon or clays present in the ore and result in …
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The unique Pumpcell pulp screening mechanisms can operate at much higher carbon concentrations (up to 100 g/L), which has allowed the size of the Pumpcell CIP adsorption tanks to be reduced by a factor of at least three and pulp residence times reduced to 15–20 min/stage, compared to conventional CIP tanks, which have a …
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Carbon in the Pulp CIP Plant Consists of the Following Steps: 1. Crushing and Screening After the crushing and screening by the crusher and vibrating screen, the bulk ore （up to 650 mm） can be broken into small sizes （about 10 mm or even smaller). Usually, small or medium-scale mineral processing plants can meet the requirements after two crushing …
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1.Understanding the concept of CIP or CIL gold processing plant. CIP (carbon in pulp): after you leaching the gold ore pulp in the leaching tank by cyanide, then feeding the leached ore pulp into the adsorption tank for adsorp the gold by active carbon. CIL (carbon in leach) : feeding the ore pulp in to the leaching-adsorption tank, then …
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Activated carbon is an adsorbent that increases the concentration of gold in the solution phase. For example, an ore containing 3 g/t is leached, mixed with carbon, which loads …
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Schematic diagram of a carbon-in-pulp or carbon-in-leach plant with three tanks, showing the interstate screens (IS), the screen at the exit of the first tank (S), and the carbon transfer pumps (P).
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Highlights Worldwide gold recovery on activated carbon grew from zero to almost 70% in twenty years from 1980. The stellar attributes of carbon gold plants led to complacency in the industry in designing and operating these plants. Most CIP and CIL plants are overdesigned and operated sub-optimally. Optimum design criteria and …
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