Carbon in pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process Introduced in the early 1980s, Carbon in Pulp is regarded as a simple and cheap process
Oct 31, 2009· "Highly activated carbon is used in the dissolved gold recovery process, either by introducing it directly into the CIL (carbon-in-leach) tanks or into separate CIP (carbon-in-pulp) tanks after leaching The activated carbon adsorbs the dissolved gold from the leach slurry thereby concentrating it onto a smaller mass of solids
The dissolved gold in solution is adsorbed onto activated carbon When the carbon is loaded with enough gold it is removed from the circuit and sent to elution where the adsorption process is reversed and the gold is stripped off the carbon back into solution, electrowon and smelted into bars
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By replacing the Merrill–Crowe zinc cementation step, carbon-in-pulp (CIP) and carbon-in-leach (CIL) recovery provided a process that allowed the treatment of lower grade and problematic ores (eg, high-clay ores), at lower capital and operating costs and higher metal recoveri
Generally, the proportion of gold and silver should not exceed 1:5 The best conditions for Carbon In Pulp process in China: PH=10-12, sodium cyanide concentration is not less than 0015%, the particle size of activated carbon is 10-335mm, the best choice of carbon is coconut shell activated carbon, and the slurry concentration is 40-45%
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the activated carbon is moved from one tank to another in countercurrent with the ore pulp until the recovery of the loaded carbon in the first tank This paper presents a dynamic model that describes, with minor changes, the carbon-in-leach, the carbon-in-pulp, and ,
Carbon in Pulp (CIP) is a technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process, a gold extraction technique Introduced in 1985, Carbon in Pulp is regarded as a simple and cheap process As such it is used in most industrial .
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The carbon in pulp (CIP) and carbon in leach (CIL) processes became firmly established in the gold mining industry in the 1980s, initially in South Africa and Australia, from where they spread rapidly to all the gold producing regions of the world
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Carbon - An Historical Perspective 1 12 The Carbon-in-pulp Process - Process Chemistry and Unknown Areas 3 a; Leaching of Gold from the Ore 3 b) Adsorption of Aurocyanide onto Activated Carbon l c) Carbon Acid Washing and Elution 7 d) Gold Electrot'inning or Precipitation 8 e) Carbon Reactivation 8 f) Other Features of the CIP Process 9
Carbon in pulp - Wikipedia, the free encyclopedia Leached pulp and carbon are transferred in a counter current high activity and can remove trace amounts of iron ore (to levels contact with freshly leached ore and pregnant leach solution (PLS) Copper and ,
The self-contained Carbon Scout device collects slurry samples from carbon-in-pulp (CIP) and carbon-in-leach (CIL) tanks to determine the distribution of the activated carbon in the pulp for each tank, to an accuracy of ± 05 grams of carbon per litre of pulp, according to Gekko
Calgon Carbon’s high-quality GACs are proven to maximize recovery efficiencies by reducing gold loss and minimizing carbon consumption when used for Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP) and Carbon-in-Column (CIC) gold extraction techniqu
Ore from Red Lake Gold Mines is hoisted up either the Balmer or Campbell shafts, then processed at the Campbell mill using a conventional crushing and grinding circuit combined with a gravity concentration for free-milling gold or carbon-in-pulp for refractory gold Gold recoveries average 94%
Gold CIP and CIL process optimization in a capital constraint environment Article (PDF Available) in Journal of the Southern African Institute of Mining and Metallurgy 117(8):819-828 August .
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The carbon advances countercurrently to the pulp The carbon is maintained in suspension in the pulp by an internal air-lift and mechanical agitation of the pulp, either with rakes or with axial flow propellers This last arrangement is preferred because in case of power outages the pulp can be easily repulped after the power is restored
A process for treating refractory ores combines pressure oxidation treatment of the ore with cyanidation and carbon-in-pulp recovery Pressure oxidation is carried out under acidic conditions, at elevated temperatures and pressure Before cyanidation, the oxidized slurry is subjected to a multiple stage washing operation to remove excess acid and heavy metals generated during the pressure .
data obtained from a similar pulp on a currently operating plant Process overview and description The CIP process A block-flow diagram of a typical CIP plant for a non-refractory gold ore is shown in Figure 2 Table I and Table II illustrate the capital and operating cost breakdowns for a typical South African gold plant These figures are not a standard but reflect the nature of the ore and .
Musselwhite’s ore is mined from two main zones below Lake Opapimiskan Ore is processed onsite using a circuit that includes crushing, grinding, leaching by cyanidation, carbon in pulp recovery and electrowinning Gold recoveries are 96% In 2016, work began on a $90-million materials handling project to improve the movement of ore to the mill
Semantic Scholar extracted view of "The process design of gold leaching and carbon-in-pulp circuits" by W C Stange , Electrochemical recovery of minor concentrations of gold from cyanide-free cupric chloride leaching solutions Ivan Korolev, Pelin Altinkaya, +3 authors Mari ,
Carbon-in-leach: A recovery process , The activated carbon and pulp are agitated together to enable the solubilized , The actual difference between spot and forward prices , Carbon in Pulp – #2fishygirl on Scribd | Scribd Carbon in Pulp – Free download as , carbon-in-pulp (CIP) and carbon-in-leach ,
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Carbon In Pulp For Scheelite Concentrator Cyanidation Process, Carbon Loading in Gold, Types Innerstage Pulp Screens Used On CIP, Cyniding Carbon Pulp, Gold Recovery Carbon in Pulp, Carbon in Leach Gold Processing, Batch Adsorption, Carbon in Leach Process, Activated Carbon Column, Carbon in Pulp Tank Design, Mining Process Flow Chart, Chemical Reactions in Pulp Process, Pulp ,
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
Carbon adsorption is increasing using in newer plants for gold recovery Carbon in Pulp (CIP) technique involves contacting the leached pulp with granular carbon in a series of agitating tanks with a sufficient retention time Selected summary of patented gold recovery processes and ,
Dec 05, 2012· Carbon in pulp – Wikipedia, the free encyclopedia Carbon in Pulp (CIP) , (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS) , Posts Related to carbon in leach vs carbon in pulp carbon in leach and carbon in pulp Carbon in Pulp - gold mining Carbon in .
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