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 ...
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 …
For the purposes of cascade design in countercurrent, carbon-in-pulp systems, the solution and carbon gold concentrations close to equilibrium in tests 1 through 4 were used to estimate an equilibrium curve for gold adsorption on minus 10- plus 20-mesh coconut carbon at ambient temperatures. The selected end-point data of these tests from ...
The best conditions for the CIL process in China: PH=10-12, sodium cyanide concentration is not less than 0.015%, the particle size of activated carbon is 1.0-3.35mm, the type of carbon is coconut shell activated carbon, and the slurry concentration is 40-45%. Gold Leaching Methods: Flotation, carbon pulp adsorption, gravity beneficiation, etc ...
The process of establishing the design criteria is the key step in commencing a new project.. The method for establishing design criteria and translating them to a workable plant design is described. INTRODUCTION The use of activated charcoal to recover gold from alkaline cyanide leach liquors is the most rapidly expanding technology in hydrometallurgy today. The process, …
DYNAMIC SIMULATION OF THE CARBON-IN- PULP AND … Dynamic Simulation of the Carbon-in-Pulp and Carbon-in-Leach Processes 625 Brazilian Journal of Chemical Engineering Vol. 24, No. 04, pp. 623 - 635, October - December, 2007 Carbon, Pulp, Carbon in pulp
Mechanical agitation is the preferred system for Carbon-in-Pulp processes. Agitator design requires an understanding of the relationships between energy, shear and flow and the nature of shear rates and shear stress distribution in an agitated tank. Laser techniques are useful when studying these phenomena. The alternatives are open impeller agitation or draft tube circulation.
Acid wash is employed as a unit process in the Carbon-in-Leach (CIL)/Carbon-in-Pulp (CIP) process route chiefly for the removal of calcium carbonate, magnesium and sodium salt from pregnant carbon ...
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 ...
A Smarter Approach to Carbon-in-Pulp (CIP) and Resin-in-Pulp (RIP) Applications. ... The design of the Pumpcell circuit allows all contactors to be placed at the same elevation, in contrast to the stepped arrangement used for conventional cascade CIP adsorption plants. Furthermore, the potential capital and operating cost benefits coupled with ...
Compared with CIP process, CIL process uses more activated carbon, the contact time between activated carbon and pulp is longer, and the wear of carbon is larger. ... Process design flow for a 2000-ton gold ore beneficiation plant ; Gold CIL Case: Malaysia Gold EPCM+O ; Carbon-in-Leach (CIL) Gold Extraction Process
carbon-in-pulp "renaissance" with the August, 1973, commissioning of the CIP circuit at Homestake Mining Co.'s plant in Lead, South Dakota (then a ... carbon, and the Merrill Co. was selected to design and supply a carbon regenerator. The kiln installed in 1952 was a 20-in.-dia x 12.6-ft-long, indirectly heated,
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 stages and one …
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 in some cases by …
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. Gold is washed (eluted) from the loaded carbon with a solution of cyanide …
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 …
This chapter focuses on the advances made in the design and operation of carbon-in-pulp (CIP) and carbon-in-leach (CIL) plants.
The two gold extraction processes CIL (Carbon in Leach) and CIP (Carbon in Pulp) are quite similar, both using granulated activated carbon to extract the gold from the solution. ... On the other hand, an impeller design commonly used in the pulp and paper industry has attributes that make it ideal for CIL and CIP applications. Recessed ...
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 …
Carbon-in-Pulp or Carbon-in-Leach processes. The purpose is to describe in simple terms what activated carbon is all about and how it adsorbs gold. The understanding of the mechanism of gold adsorption is important because the CIP/CIL processes work as a result of the gold adsorption mechanism, which is a chemical occurrence. Factors that
The process technology and equipment design are described in detail for the carbon-in-pulp process. A typical process flowsheet is given with a description of appropriate design criteria. Technical advantages and disadvantages as compared to the traditional countercurrent decantation …
A Carbon in Pulp (CIP) mass balancing model is a valuable tool used in the mining industry to optimize the recovery of valuable metals like gold from ore. This model employs principles of mass conservation to track the movement and distribution of carbon and gold throughout the CIP process. Key components of a CIP mass balancing model include …
The Carbon-in-Pulp (CIP) Tank CAD model depicts a crucial component in modern gold processing plants. ... As the ore slurry flows through the tank, the gold attaches to the carbon, forming a loaded carbon mixture. This CAD design emphasizes efficient mass transfer and mixing, optimizing the gold adsorption process. The CIP Tank's engineering ...
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 …
Furthermore, resin bead size and mechanical durability improvements have led to the fact that Resin-in-Pulp (RIP) technology can be considered as a technical and viable process option for the recovery of metal from pulp streams. Kemix has a history of specialising in Carbon-in-Pulp (CIP) design and equipment supply.
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 from the solution. The ...
the carbon bed and are condensed in the overhead condenser. The condensate is pumped back to the top of the carbon bed and is sprayed on the carbon. The downflowingcondensate washes the gold values from the carbon particles into the boiler section below. (3) Alcohol Recovery
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 gold plant will …
Carbon-in-leach and carbon-in-pulp are continuous processes that use activated carbon in a cascade of large agitated tanks, which have been widely used to recover or concentrate precious...
Mechanical Development – Design & Plant Installation. ... Carbon-slurry interaction can be maximised by feeding slurry into the tank at or near the surface, while drawing pulp onto the screen from an upcomer. Carbon recycled off the screen must traverse the entire tank height before returning to the inter-stage screen. As depicted in Figure 4 ...
INTRODUCTION Carbon-in-pulp (CIP) technology which has developed rapidly since 1974 is now accepted as an economically and technically viable process for the efficient recovery of gold. This paper describes testwork and flowsheet development procedures …
Carbon is IBM's open source design system for products and digital experiences. With the IBM Design Language as its foundation, the system consists of working code, design tools and resources, human interface guidelines, and a vibrant community of contributors.
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Carbon - An Historical Perspective 1 1.2 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
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 residence time of 1 h ...
