Home Products lime consumption in the flotation of copper basics of flotation

lime consumption in the flotation of copper basics of flotation

Copper Flotation Mineral Processing & MetallurgyMay 16, 2016· When pyrite is present, lime performs the additional function of a depressor, the amount used being balanced against that of the promoterthat is, no more lime should be added than is required to prevent the bulk of the pyrite from floating, as any excess tends to depress the copper minerals, and no more of the promoter should be employed than is needed to give a profitable recovery of the valuable minerals in aExplore further(PDF) A Review of the Flotation of Copper Minerals.researchgate.netThe world’s top 10 highestgrade copper mines MINING.COM.mining.comDissolving Gold and Precipitating Gold Pyrometallurgy.911metallurgist.comHow to Melt Copper Wire Our Pastimesourpastime

Cyanide Management by SART SGS

high grade copper ores to minimize cyanide consumption and allow smooth operation. The sulfide ore is treated through a flotation circuit to produce pyrite and copper concentrates. The pyrite concentrate is treated in the CIL. Copper concentrate is stockpiled and s to a smelter for

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Sulphide Flotation an overview ScienceDirect Topics

In Chile, many copper flotation plants use seawater. One example is Las Luces, a coppermolybdenum plant in Taltal, owned by the Las Cenizas Mining Group (Grupo Minero Las Cenizas) of Chile. In Las Luces, seawater is brought from a distance of 7 km, mixed with tailing dam water and then used in grinding and flotation circuits.

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sodium sulfide usage in the flotation for ore dressing

Aug 15, 2013· High of 13 Hongshan Hubei Daye Shitouzui in dealing with copper to copper mineral malachite mainly when using the multistage multipoint of adding Na2S concentrate ore flotation method reduces the circulating concentrate grade than the production process increased 211 copper, g recovery 25198 and 10181 respectively.

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Improving copper flotation recovery from a refractory

Jul 01, 2011· The flotation performance of PECTU. Lime is commonly used as a pH regulator and depressant against iron minerals during the flotation recovery of copper minerals from copper porphyry sulfide ore. It can also depress copper oxide, secondary copper sulfide or g minerals (Allan and Woodcock, 2001, Sun, 2001, Liu et al., 2008a). More dosages of SBX were used in the Cu/Fe rougher operation, more amounts of lime for

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Column Flotation Theory and Practice

for Copper Cleaning181. 1986 Scale up at Mount lsa Mines for PbZn flotation191. Commissioning of 3 stage circuit at Gibralta Mines for bulk Cu/Mo cleaning1101. 1987 Symposium on column flotation cell Trail B.C. Canada.1111. 1988 Column flotation' 88 SME/AIME,[12[. 1990 Book 'column flotation of

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IMPROVEMENT OF PORPHYRY COPPER FLOTATION

consumption of 335 g/t, these reagents reduce flotation time, improve recovery of copper to 3.5%, zinc to 12% and g to 810%, double the rate of flotation, improve quality of the concentrates, stabilize flotation performance and abate ecological stress in the area of flotation plant operation [12, 13]. In flotation of copper

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Copper Flotation Mineral Processing Metallurgy

May 16, · Although basic porphyry copper flotation and metallurgy has remained virtually the same for many s, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices and automatic controls in order to assure maximum metallurgy and

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Lime use and functionality in sulphide mineral flotation

It is common that in the copper industry lime is used as the sole depressant for pyrite, primarily when flotation is carried out in freshwater [11, 12]. Interestingly, the use of seawater is a

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(PDF) A Review of the Flotation of Copper Minerals

economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or. hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 12%TCu (underground

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Lime in Flotation and Recovery Processes Graymont

Lime in Flotation and Recovery Processes. Both quicklime and hydrated lime are widely used in the flotation or recovery of nonferrous metals, including copper, zinc, nickel and leadbearing ores. Lime is used extensively in the recovery of g and silver. Ores, either runofmine, milled, autoclaved or roasted, are combined with lime and a cyanide solution.

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A Comparative Study of Kinetics of Flotation of a

Lime water at the pH of the flotation test was occasionally added to the flotation cell to maintain the pulp level during the experiment. The details of the flotation experiments are outlined in Figure 2. Duplicate tests were performed for each flotation test to check the reproducibility of

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Lime use and functionality in sulphide mineral flotation

Nov 01, 2019· Nov 01, 2019· Lime consumption can, however, be very high, especially for ores with high pyrite content, and/or when flotation is carried out in seawater. For some South American copper ores, pH values as high as 11.5 are needed to depress pyrite, and lime consumption up to 5 kg/t of ore is reported.

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COMPLEX MINERAL RECOVERY FROM THE COPPER

effecting on the flotation kinetic. The conducted investigation has had aim to ensure collective flotation by chalcopyritepyrite from Bucim copper mine ensuring the possibilities of the increased copper recovery contemporary decreasing both the lime consumption and incrustation appearing and protection of the environment.

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The Magic Effect of Lime in Mineral Processing JXSC Machine

Feb 20, 2021· The Magic Effect of Lime in Mineral Processing. Lime is widely used in mineral processing areas, like beneficiation processing, flotation processing, and leach processing. Also, lime can be used to raises the pH value, thus precipitating metals diluted in the water into tailing areas. And limestone is often used in the construction of tailing

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(PDF) BULK FLOTATION OF COMPLEX COPPER

In controlling the pH, lime is usually used in plant. The use of a lime circuit is practically universal in the flotation of copper ores. Lime alkalinity is generally maintained in the pH range of 9.5 to 11.5. The higher pH serves to depress the iron sulfide gangue minerals which are commonly present.

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(PDF) A Review of the Flotation of Copper Minerals

economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or. hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 12%TCu (underground

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Activation of highiron marmatite in froth flotation by

Mar 01, 2007· Mar 01, 2007· The substitution of ammoniacal copper(II) solution for copper sulfate as the activator in highiron marmatite flotation not only increases greatly the separation efficiency (flotability and flotation rate), but also allows large savings on the consumption of lime and xanthate because the flotation is realized in a weakly alkaline medium.

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The role of sodium metabisulphite in depressing pyrite in

Oct 01, 2019· It is observed that MBS is generally used in copper flotation using seawater. However, it is added in the mill in some plants, but during flotation in the other plants. The dosage of MBS added also varies significantly in these plants. A fundamental study may provide knowledge to guide the application of MBS in copper flotation using seawater.

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Copper Flotation Elmhurst University

Ore Concentration by Froth Flotation. Remember that only 0.67% of the ore is copper. The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and groundup limestone) to give a basic

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Effects of Process Parameters on Selective Flotation of

flotation separation by depression of zinc bearing minerals using a combination of sodium cyanide and zinc sulphate as depressant and flotation of lead minerals using potassium ethyl xanthate as collector and methyl isobutyl carbinol (MIBC) as frother. Lime was used as pH regulator and this also helped in depression of pyrite.

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Copper Flotation Mineral Processing Metallurgy

May 16, · When pyrite is present, lime performs the additional function of a depressor, the amount used being balanced against that of the promoterthat is, no more lime should be added than is required to prevent the bulk of the pyrite from floating, as any excess tends to depress the copper minerals, and no more of the promoter should be employed than is needed to give a profitable recovery of the valuable minerals in a

Explore further
(PDF) A Review of the Flotation of Copper Minerals.researchgate The worlds top 10 highestgrade copper mines MINING.COM.mining Dissolving G and Precipitating G Pyrometallurgy.911metallurgist How to Melt Copper Wire Our Pastimesourpastimes Copper Ore Types Sulfides vs. Oxides An Investor'sinvestingnews Recommended to you based on what's popular Feedback Chat
Lime use and functionality in sulphide mineral flotation

It is common that in the copper industry lime is used as the sole depressant for pyrite, primarily when flotation is carried out in freshwater [11, 12]. Interestingly, the use of seawater is a

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Method of flotation enrichment of sulphidic coppernickel ores

The invention relates to the beneficiation of minerals and can be used in the processing of sulphide copperNickel ores. There is a method of enrichment of sulphide copperNickel ores, comprising grinding the original ore to a particle size of 8083% of the content of the class less of 0.045 mm, consecutive 3stage flotation selection of pentlandite from the chamber piratestreasure middlings

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Froth Flotation Metallurgist Mineral Processing Engineer

Flotation agitators have three basic functions to keep sand in suspension, to disperse air as discrete Lime is often used in flotation to increase the alkalinity of the pulp. An alkaline pH increases the volume reduce consumption. Flotation operators must pay close attention to froth characteristics as

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Physicochemical factors in flotation of CuMoFe ores

Fig. 1. Effect of seawater dilution on consumption of lime needed to adjust pH in the flotation of a copper sulfide ore (Castro et al., 2010) Precipitates formed in seawater at pH>10 are detrimental to the flotation process, particularly the colloids of magnesium hydroxide, and, to a less degree, calcium carbonate (Parraguez et al., ; Castro

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Interpretation of high base consumption in the flotation

The pH of the slurry when above 8 decreases when the pulp is aerated as in flotation. To counter, a large amount of lime or other base (for example, sodium carbonate) is consumed. The origin of

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FLOTATION PROCESSING OF COPPERMOLYBDENUM ORE

of the returned products. Lime was supplied into the grinding process to create a pH of the medium equal to 8,0 9,0; sodium sulfide for the minerals sulphidization. The main collective coppermolybdenum flotation was performed for 17 minutes, the control one for 8 minutes, and in the basic mode the following reagents

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Copper Flotation Elmhurst University

The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and groundup limestone) to give a basic pH, pine oil (yes, it comes from trees a byproduct of paper mills) to make bubbles, an alcohol to strengthen the bubbles, and a collector chemical called potassium amyl xanthate (or the potassium salt of an alkyl dithiocarbonate).

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Lime use and functionality in sulphide mineral

Nov 01, 2019· Lime consumption can, however, be very high, especially for ores with high pyrite content, and/or when flotation is carried out in seawater. For some South American copper ores, pH values as high as 11.5 are needed to depress pyrite, and lime consumption up to 5 kg/t of ore is reported.

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A Comparative Study of Kinetics of Flotation of a Copper

Lime water at the pH of the flotation test was occasionally added to the flotation cell to maintain the pulp level during the experiment. The details of the flotation experiments are outlined in Figure 2. Duplicate tests were performed for each flotation test to check the reproducibility of results. The flotation samples (floats and tails) were

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