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The CIL process requires the desorption of gold in the leaching tank, while the gold desorption in the CIP process is performed after solid-liquid separation. Overall, both CIP …

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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 ...

To date developments in the simulation of carbon-in-pulp (CIP) adsorption circuits have focused primarily on the modelling of adsorption. This series of three papers descriptionbes a development in a direction that has received less attention, i.e. the need for a detailed descriptionption of the movement of carbon and slurry in continuous CIP and carbon-in-Ieach (CIL) plants. A new …

There are three main carbon adsorption processes used in gold mining: carbon-in-pulp (CIP), carbon-in-leach (CIL), and carbon-in-columns (CIC). CIP and CIL processes recover gold directly from ore pulps or slurries containing up to 55% solids using activated carbon, while CIC treats solutions from heap leaching. CIP and CIL generally have lower capital costs than the …

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in CIP and CIL circuits, and is the important point of departure for the new simulator. The approach is discuss-ed in detail in Part 2 of this series of papers. Modelling of the Process Chemistry With regard to the modelling of the process chemistry, adequate models for concurrent leaching and adsorption

CIP CIL Circuit Configuration 3 x 1080 m3 (24h of CN) 8 x 120 m3 (7h of CIP) 6 x ~700 m3 (31h total) Carbon Concentration 30 g/L 15 g/L Carbon Loading 1142 g/t 1130 g/t Carbon Transfer 1.5 t/day carbon transfer Carbon Inventory / Stage 3.6 t 10.1 t Carbon Inventory (all) 29 t 61 t ...

Carbon-in-pulp (CIP) 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 …

CIP vs CIL. 1. CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its ore. By cyaniding and carbon leaching crushed gold ore slurry …

The aim of modelling and simulation of CIP/CIL tanks is limited to either refining the models used for simulations or optimizing the process using operating parameters. For improving the models to simulate CILs, van Deventer and Ross (1991) reviewed the developments in CIP systems and concluded that preg-robbing is an important phenomenon in ...

SYNOPSIS To date developments in the simulation of carbon-in-pulp (CIP) adsorption circuits have focused primarily on the modelling of adsorption. This series of three papers describes a development in a direction that has received less attention, i.e. the need for a detailed description of the movement of carbon and slurry in continuous CIP and carbon-in-Ieach (CIL) plants. A …

Case studies for both a CIP plant and a CIL plant are presented. The CIP case study. A plant evaluation on a 180 000 t/month CIP plant was performed. The plant consists of six Kemix pump cells in a carousel flow arrangement, a hydrochloric acid pre-wash, high-pressure elution at 125°C, kiln regeneration, and electrowinning.

Introduction. Assuming that a gold ore has been effectively ground to ensure maximum economic liberation of gold, the circuits that will have the most effect on the successful operation of a …

Introduction of gold ore CIP/CIL process CIP (carbon-in-Pulp) and CIL (Carbon-In-Leach) are two commonly used gold mineral processing processes, both of which use activated Carbon to adsorb gold, so as to achieve gold extraction. The CIP process is to add activated carbon directly to the pulp, while the CIL process is to inject the pulp into the activated carbon bed.

A typical CIP or CIL circuit is shown in Figure 1. The process is regulated by the elution schedule. Carbon addition and carbon transfer are based on when the required mass of carbon needs to be ...

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 operating conditions are easily …

Case studies for both a CIP plant and a CIL plant are presented.,9: :0729:28.1$ A plant evaluation on a 180 000 t/month CIP plant was performed. The plant consists of six Kemix pump cells in a carousel flow arrangement, a hydrochloric acid pre-wash, high-pressure elution at 125°C, kiln regeneration, and electrowinning.

This document discusses optimizing gold CIP and CIL processes in a capital constrained environment through the use of modeling and economic analysis. It presents two case studies from South African gold plants. The well-known Nicol-Fleming kinetic adsorption model is used, along with economic modeling, to determine the operational conditions that will maximize …

CIP and CIL method is a new process for processing precious metal-containing pulp on the basis of the conventional cyanide gold extraction method. In CIP process, leaching and adsorption are two operations, the leaching tank is used for cyanide leaching of the slurry, and the carbon slurry tank is used for adsorption of gold by activated carbon.

Carbon-in-Leach (CIL) is conventionally used in gold processing operations when preg robbing components are present in the ore. CIL process is becoming attractive even in …

A continuous CIP/CIL model can be used to predict outcomes from the CIP/CIL processing of different ores, or for evaluating the effects of non-idealities in CIP/CIL circuits, such as preg-robbing.

OKTOP® CIL reactors are specially designed and optimized equipment for the gold cyanide leaching and recovery, and are suitable for both CIL and CIP process applications. With more …

Carbon In Leach (CIL) and Carbon In Pulp (CIP) are two commonly used methods in the gold extraction process. Although both methods involve the use of activated carbon to adsorb gold, …

The CIL process requires the desorption of gold in the leaching tank, while the gold desorption in the CIP process is performed after solid-liquid separation. Overall, both CIP and CIL processes utilize activated carbon for gold adsorption, but there are some differences in the gold recovery steps and processes.