Grinding Of Copper Ore Pdf

Classification for Control of Copper Ore Dry Grinding Process

grinding circuit.) Figure 3. Experimental setup involving classification subsystem of the grinding circuit. 2.3. Granular Material The material used during experiments was carbonate copper ore, one of the target substances of the described grinding and classification circuit. Particles of the input material

Industrial Grinding Estimation of Blended Ore from ...

Industrial Grinding Estimation of Blended Ore from Porphyry Copper Deposit Irena Grigorova1, Marin Ranchev2, Teodora Yankova3, ... Abstract: In order to provide an uniform feed to the processing plant, the mined from a porphyry copper deposit ore is blended in the following proportions: Propylites 31-35%; Argilizites 30-33%; Secondary quartzites 30-36 % (roughly 1:1:1). Those three types of ...

THE EFFECT OF GRINDING FINENESS ON THE RESULTS OF ...

the copper content decreased in the ore and it was assumed that the optimal fineness of ore grinding was changed. This paper presents the results of testing the fineness of grin-ding on recovery and cop- per content of the basic copper concentrate and the impact of regrinding on recovery and copper con-tent in the purified copper concentrate on a sample of ore from the deposits Veliki Krivelj ...

Crushing and grinding e Practice and problems in Kalyadi ...

Crushing and grinding e Practice and problems in Kalyadi copper mine concentrator * Nagabhushana, B, R, Location of the plant Kalyadi is 21 Km. away from Arsekere. It can be reached by diverting on the Naranahalli-Java-gal Road, at 7. 4 Km. from Naranahalli. A 2 Km. long mud road connects the plant with the main road. INTRODUCTION At Kalyadi concentrator plant the ROM ore is required to be ...

EXTRACTION OF COPPER

EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydro-metallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper. Crashing and Grinding The ore …

INVESTIGATION OF THE ELECTROCHEMICAL FACTORS AFFECTING …

GRINDING ENVIRONMENT OF A PORPHYRY COPPER SULPHIDE ORE Asghar Azizi1#, Seid Ziaoddin Shafaei2, ... The Sarcheshmeh copper ore is a major porphyry copper deposit, which is located in Kerman Province in the southeastern part of Iran. 2. Experimental section 2.1. Materials The obtained samples from the ball mills input of the Sarcheshmeh copper mine were crushed in a jaw …

Technical Note The effect of grinding conditions on the ...

Technical Note The effect of grinding conditions on the flotation of a sulphide copper ore K.L.C. Gonc alves a, V.L.L. Andrade a, A.E.C. Peres b,* a CVRD, Diretoria de Desenvolvimento de ...

Chapter 7 Energy Use in the Copper Industry

Grinding and concentration together consume about 45 percent of the energy used in the pro-duction of cathode copper. Assuming an ore grade of 0.55 percent and a recovery rate of87.5 6.4 percent copper in the concentrate, concentrat-ing 1 ton of copper ore requires over 200 billion Btu, or approximately 42 million Btu/ton of cath-

(PDF) BULK FLOTATION OF COMPLEX COPPER ORE | …

Some copper sulfide ores can be partially oxidized, also influencing the selection of a reagent scheme, with the exception being a hypogene sulfide copper ore. Copper sulfide ores are normally finer grained than porphyry copper ores and require finer grinding (i.e. 70–80% <200 mesh). He also added that copper sulfide ores are disseminated and ...

Copper Ore Crushing, Grinding & Flotation

Crushing and Grinding You will note that the Oracle Ridge project has utilized a two-stage crushing circuit with a double acting jaw crusher and cone crusher. In order to utilize this system, the jaw crusher is oversized to produce all -5 material for the cone mill with a screen in closed circuit. Normally a three-stage crushing circuit would have been more conventional, but with the type of ...

Industrial Grinding Estimation of Blended Ore from ...

Industrial Grinding Estimation of Blended Ore from Porphyry Copper Deposit Irena Grigorova1, Marin Ranchev2, Teodora Yankova3, ... Abstract: In order to provide an uniform feed to the processing plant, the mined from a porphyry copper deposit ore is blended in the following proportions: Propylites 31-35%; Argilizites 30-33%; Secondary quartzites 30-36 % (roughly 1:1:1). Those three types of ...

Crushing and grinding e Practice and problems in Kalyadi ...

Crushing and grinding e Practice and problems in Kalyadi copper mine concentrator * Nagabhushana, B, R, Location of the plant Kalyadi is 21 Km. away from Arsekere. It can be reached by diverting on the Naranahalli-Java-gal Road, at 7. 4 Km. from Naranahalli. A 2 Km. long mud road connects the plant with the main road. INTRODUCTION At Kalyadi concentrator plant the ROM ore is required to be ...

Chapter 7 Energy Use in the Copper Industry

Grinding and concentration together consume about 45 percent of the energy used in the pro-duction of cathode copper. Assuming an ore grade of 0.55 percent and a recovery rate of87.5 6.4 percent copper in the concentrate, concentrat-ing 1 ton of copper ore requires over 200 billion Btu, or approximately 42 million Btu/ton of cath-

EXTRACTION OF COPPER

EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydro-metallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper. Crashing and Grinding The ore …

EFFECT OF GRINDING CHEMISTRY ON THE SULPHIDISATION …

The oxidised sulphide ore was studied by artificially oxidising a copper sulphide ore to various states during 16 months. For each oxidation state, the effect of chemistry was studied through a series of grinding and flotation tests completed under various grinding environments. The results show that the grinding chemistry drives the flotation performances of the ore at each oxidation stage ...

Investigating of the effect of ore work index and particle ...

on copper sulphide ore grinding. These variables were changed during the tests with respect to the Box–Behnken experimental design, whereas the other operational parame-ters of grinding were kept constant (feed amount, ball charge, mill speed). Usually a second-order model (Eq. (2)) is utilized in response surface methodology [1,9]. y = ˇ0 + k i=1 ˇ ix + k i=1 ˇ iix 2 i + k−1 i=1 k j=2 ...

(PDF) BULK FLOTATION OF COMPLEX COPPER ORE | …

Some copper sulfide ores can be partially oxidized, also influencing the selection of a reagent scheme, with the exception being a hypogene sulfide copper ore. Copper sulfide ores are normally finer grained than porphyry copper ores and require finer grinding (i.e. 70–80% <200 mesh). He also added that copper sulfide ores are disseminated and ...

A New Collector for Effectively Increasing Recovery in ...

copper oxide mineral particles undergoes many changes. For instance, the fine-grained copper oxide ore is poorly floatable and displays a lower recovery during the flotation process [7]. Up to now, sulfide flotation is still one of the most widely used processes in copper oxide ore dressing, but it is

Copper Ore Crushing, Grinding & Flotation

Crushing and Grinding You will note that the Oracle Ridge project has utilized a two-stage crushing circuit with a double acting jaw crusher and cone crusher. In order to utilize this system, the jaw crusher is oversized to produce all -5 material for the cone mill with a screen in closed circuit. Normally a three-stage crushing circuit would have been more conventional, but with the type of ...

Extractive Metallurgy of Copper | ScienceDirect

Copper production from recycled end-of-use objects is about 15% of copper-from-ore copper production. Electrochemical processing is always used in producing high-purity copper: electrorefining in the case of pyrometallurgical extraction and electrowinning in the case of hydrometallurgical extraction. The principal final copper product is electrolytic tough pitch copper. It is suitable for ...

Hydrometallurgical treatment of Haib copper ore

Hydrometallurgical treatment of Haib copper ore ... pretreatment (possibly ultra-fine grinding). Splits were agitation leached in 1.5 L of inoculum at 10 per cent solids and 45°C. Tests continued as long as 786 hours, with daily solution assays for copper and iron. Final leach residues were washed and assayed to confirm extractions. Washed residues were leached for 48 hours with 0.5 g/L ...

Investigating of the effect of ore work index and particle ...

on copper sulphide ore grinding. These variables were changed during the tests with respect to the Box–Behnken experimental design, whereas the other operational parame-ters of grinding were kept constant (feed amount, ball charge, mill speed). Usually a second-order model (Eq. (2)) is utilized in response surface methodology [1,9]. y = ˇ0 + k i=1 ˇ ix + k i=1 ˇ iix 2 i + k−1 i=1 k j=2 ...

Influence of type of lining in high-pressure grinding ...

Influence of type of lining in high-pressure grinding rolls on effectiveness of copper ore comminution 187 Table 3. Service time of different type of HPGR linings, for ore from Rudna and Polkowice plant Type of roll’s lining Estimated period of service [hours] Rudna Polkowice Hexagonal 5 500 8 500 Studded 15 000 15 000 Table 3 shows that the studded linings have a much longer estimated time ...

Synthesis of sodium polysulphide for copper ore processing

for copper ore processing UDC 669.3:622.765 Sodium polysulphide consists of yellow-brown, yellow-green crystals. Its chemical formulas are Na 2S 2, Na 2S 3, Na 2S 4. Currently there are several known methods for the production of sodium sulfide: chemical reduction of sodium sulphate by solid carbonaceous material; reduc-tion of sodium sulfate by gaseous reductant; absorption of hydrogen ...

Copper Ore Crushing, Grinding & Flotation

Crushing and Grinding You will note that the Oracle Ridge project has utilized a two-stage crushing circuit with a double acting jaw crusher and cone crusher. In order to utilize this system, the jaw crusher is oversized to produce all -5 material for the cone mill with a screen in closed circuit. Normally a three-stage crushing circuit would have been more conventional, but with the type of ...

Evaluation of sodium isobutyl xanthate as a collector in ...

copper ore ground 45 % passing 75 lm was froth-floated with sodium isobutyl xanthate (SIBX) collector at 60, 70, 80, 90 and 100 g/t dosages. The concentrates and tails were dried and analysed. The results obtained showed that the highest recovery of 85.18 % with a grade of 12.61 % was obtained at the 80 g/t dosage. It was further observed that the copper grade of the concentrate generally ...

The use of geometallurgy in the processing of a complex ...

Keywords: Copper-gold ore processing; heap leaching; agitation leaching; flotation; Gedabek; Azerbaijan. 1 Introduction The Gedabek Au-Cu-Ag deposit is located in the Gedabek Ore District in the Lesser Caucasus mountain range in north-western Azerbaijan. The Contract Area in which the Gedabek mine is situated is approximately 300 km2 in size and is one of six Contract Areas held by the London ...

Copper Ore - an overview | ScienceDirect Topics

The copper ore production process operation as defined in Section 3.1 is simulated for a period of one year with various failure modes. The time evolution of the cumulative cost curves and copper output for 100 Monte Carlo (MC) simulations are shown in Figure 5 for easier visualisation. More MC simulations can be done while characterising the system.

A New Collector for Effectively Increasing Recovery in ...

copper oxide mineral particles undergoes many changes. For instance, the fine-grained copper oxide ore is poorly floatable and displays a lower recovery during the flotation process [7]. Up to now, sulfide flotation is still one of the most widely used processes in copper oxide ore dressing, but it is

Extractive Metallurgy of Copper | ScienceDirect

Copper production from recycled end-of-use objects is about 15% of copper-from-ore copper production. Electrochemical processing is always used in producing high-purity copper: electrorefining in the case of pyrometallurgical extraction and electrowinning in the case of hydrometallurgical extraction. The principal final copper product is electrolytic tough pitch copper. It is suitable for ...

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