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carbon in pulp process of gold

The process design of gold leaching and carbon-in-pulp

The carbon in the reactor into which pregnant pulp is fed (referred to as the first reactor) becomes highly loaded with gold. Loaded carbon values on operating plants range from 300 to 20 000 grams of gold per ton of carbon, a concen- trating factor of about 1 000–1 500.

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Carbon in Pulp

Gold Carbon-in-pulp (CIP) production is the sequential leach, then absorption of gold from ore. During the CIP stage, pulp flows through several agitated tanks where sodium cyanide and oxygen have been added to dissolve gold into solution. CIP process is suitable for the treatment of oxidized gold ore with low sulfur content and mud content.

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Carbon in Pulp Gold CIP JXSC Machine

11/04/2018· CIP (Carbon In Pulp) process is suitable for the treatment of oxidized gold ore with low sulfur content and mud content. It is unsuitable for the gold ore with high-grade silver as well. Generally, the proportion of gold and silver should not exceed 1:5.

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Carbon-in-pulp ScienceDirect

01/01/2005· In the Pica procedure, a sample of carbon is contacted for 1 h with 1 L of 10 mg/L gold solution. Residual gold in solution is measured, and gold adsorbed on to the carbon is calculated as G 1. The carbon is recovered and put into a new fresh batch of 10 mg/L gold solution for a further hour. Gold adsorbed on to the carbon is calculated as G 2.

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THE CHEMISTRY OF THE CARBON-IN--PULP PROCESS Michael

CHAPTER 1 INTRODUCTION The carbon-in-pulp (CIP) process for extraction of gold from cyanide leach liquors, which has undergone widespread application in recent years1 # 2, is generally the preferred method for recovery of gold in all new gold plants.

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Extracting Gold By Carbon In Pulp Basic Processing Of

Two main methods Carbon In Pulp (CIP) and Carbon Columns may consist of the most widely used technique for extracting gold today. Both methods use a large tank in the column parallel step where gold is dissolved in the slurry (pulp) through a chemical process and combine agitation, oxygen and cyanide.

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Carbon-in-Pulp ScienceDirect

01/01/2016· In the Pica procedure, a sample of carbon is contacted for 1 h with 1 L of 10 mg/L gold solution. Residual gold in solution is measured, and gold adsorbed on to the carbon is calculated as G1. The carbon is recovered and put into a new fresh batch of 10 mg/L gold solution for a further hour. Gold adsorbed on to the carbon is calculated as G2.

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ACTIVATED CARBON IN GOLD RECOVERY Kemix

Typical activated carbons used in the Carbon-in-Pulp (CIP) and Carbon-in-Leach (CIL) processes have surface areas of about 1000 m²/g i.e. one gram of activated carbon (the amount of which will occupy the same space as the end of a person's thumb) has the same surface area as two football fields.

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Carbon In Pulp Design relaisducommerce

The process design of gold leaching and carbon-in-pulp . The process design of gold leaching and carbon-in-pulp circuits contaminants. These are removed by thermal regeneration of the eluted carbon, typically in a rotary kiln at temperatures of 650–750°C. Regeneration is carried out in a steam atmosphere to minimize carbon degradation due to oxidation. The eluted and regenerated carbon is

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Carbon-in-Pulp ScienceDirect

01/01/2016· The introduction of activated carbon to recover gold from cyanide leach solutions in the last quarter of the 20th century had a breakthrough impact on the economics of gold ore processing, as the world gold industry entered a period of unparalleled expansion following the deregulation of the gold price in the mid-1970s. By replacing the Merrill–Crowe zinc cementation step, carbon-in-pulp

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Carbon-in-pulp ScienceDirect

01/01/2005· An important consideration related to carbon residence time is that the longer the carbon remains in contact with the pulp, the greater the extent of fouling and the greater the detrimental effect on adsorption of gold (Stange, 1999). Total carbon contact time will be influenced by the number of stages, the amount of carbon in each stage, the mode of carbon transfer and the total rate at which

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Carbon and Resin Technologies for Gold Recovery

Carbon-in-pulp The ore is crushed, finely ground and mixed with the cyanide leach solution to form a slurry in an agitation tank. The activated carbon is introduced into the slurry and then removed by screening once it is fully loaded or “pregnant” with gold. Carbon-in-leach This process is very similar to the CIP process. The main differences lie in the preparation of the slurry and

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The process design of gold leaching and carbon-in-pulp

Corpus ID: 32370569. The process design of gold leaching and carbon-in-pulp circuits @inproceedings{Stange1999ThePD, title={The process design of gold leaching and carbon-in-pulp circuits}, author={W. C. Stange}, year={1999} }

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cyanide leaching gold recovery process Carbon In Pulp

08/07/2019· cyanide leaching gold recovery process Carbon In Pulp can be used in areas where fine gold-bearing rocks are found. Sodium cyanide solution is mixed with f...

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Carbon-in-pulp extraction of Gold Hydrometallurgy

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Hydrometallurgy. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else

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Carbon Adsorption In Recovery Of Gold Mine

The carbon in pulp method is only used where tank leaching is utilized for the recovery of gold from the ores and this is not the case in most large gold mines today, since heap leaching is the lowest cost method for recovering gold from ores containing from a few grams to 5 or 6 grams per ton. If the ore is a high grade, it may be feasible to tank leach it. By high grade, it would probably be

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MODELING OF THE CARBON-IN-PULP (CIP) PROCESS IN GOLD

Modeling of the carbon-in-pulp (CIP) process in gold cyanide leaching plants 847 obtain the same Q and C. Thus, optimization of the CIP plants would be possible after finding the model parameters by using real plant data. Results and discussion The model parameters and the regression coefficient (R2) values for each models were calculated by nonlinear regression method and these R2 values

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CIP/CIL Modelling AusIMM

Gold on carbon/gold in solution ratios of >1000:1 are achievable in many cases. The distribution of that carbon between the stages (within reason) is irrelevant. The concentration of carbon in the pulp varies with the size of the tanks, so it is irrelevant. Gold extraction efficiency is determined by: The total amount of carbon in each stage in the plant. 6 REALITY CHECK The processes in which

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