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flotation of oxide copper ores pdf

Studies of contact angles on oxidized copper minerals

In the concentration of copper ores by flotation, the major loss of unrecovered mineral in the tailings is caused by the ineffective floata­ bility and recovery of the oxide copper minerals. That the industry would benefit greatly, ifmore of the oxide minerals were recovered, is evident when the large tonnages treated are considered.

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YU258577A - Concentrating of hydrated aluminium oxide minerals by means ...

flotation concentrating aluminium oxide oxide minerals hydrated aluminium Prior art date 1976-10-28 Application number YU02585/77A Other languages English (en) Inventor D Weston Original Assignee Reynolds Metals Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and ...

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Leaching of Flotation Concentrate of Oxide Copper Ore from Sepon Mine ...

Abstract: Acid leaching of flotation concentrate of oxide copper ore containing mainly of malachite was performed in a standard agitation tank with various parameters. The effects of solid to liquid ratio, sulfuric acid concentration, agitation speed, leaching temperature and time were examined to get proper conditions.

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Life Science Journal 2013;10(6s) http:.. The ...

250, HP700 and HP600 (alcohols in amine oxide) are typically used in the flotation of porphyry copper and copper molybdenum ores [6]. Using the mixtures of collectors can result in more convergence compared to single collectors [7], [8]. Hunson & et al (1988) used feud collectors' composition for copper quarry [8]. Adoknis & et al

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Acid leaching of oxide-sulphide copper ore prior the flotation: A way ...

Processing of such mixed ores by the existing concentration technologies leads to a substantial copper losses (<60%). Reduction of "oxide copper", by acid leaching prior the flotation concentration, can increase the overall copper efficiency up to more than 70% in the single-stage leaching, achieving an efficiency in the more »

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NICKEL AND COBALT ORES: FLOTATION - Metallurgist & Mineral Processing ...

Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate (pH+9.2, 25 g t 1 Dow froth!250). (Reprinted with permissionfrom the CanadianInstitute of Mining, Metallurgy and Petroleum.) Figure 6 Flotation results obtained with Clarabelle ore from

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Improving the efficiency of oxide copper-cobalt ores flotation by ...

From the above, it can be concluded that sulphidising flotation of oxide copper-cobalt ores with sodium hydrosulphide as sulphidising agent exhibits a good selectivity of copper and cobalt flotation towards the gangue minerals. On the other hand, the use of ammonium sulphide induces higher metals recoveries with very low selectivity.

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[PDF] Flotation of nickel-copper sulphide ore : optimisation of process ...

This therefore calls for a continual characterisation and optimisation of flotation parameters such that concentrator performance as a whole is always maintained. In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore.

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US3845862A - Concentration of oxide copper ores by flotation ... - Google

Oxide copper ores in subdivided form may be concentrated in a flotation separation process by slurrying said ores in an aqueous solution of a flotation reagent followed by generating gas bubbles in the slurry to float the oxide copper and recovering the concentrated oxide copper from the surface of the slurry, wherein the flotation reagent is a quaternary hydrocarbyl ammonium or phosphonium ...

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(PDF) Flotation of Aladagˇoxide lead-zinc ores - Academia.edu

Preliminary flotation tests with the ore. Oxide lead-zinc ore sample containing 10.17% Pb, 10.98% Zn, 57 g/t Ag and 164 g/t Cd was subjected to this experimental study and taken from Kayseri located in the foothills of the Aladag ˘ Mountains, Turkey. Preliminary flotation tests with the ore ... Download Free PDF.

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[PDF] A successful operational initiative in copper oxide flotation ...

One of the main challenges in the copper oxide processing industry is implementation of flotation method to reduce operating costs. Sulphidising flotation is the most common used technique in which a sulphidisation agent is used to sulphidise the surface of the oxide minerals. In this research, the mentioned technique was used sequentially for the concentration of silicate-carbonate ore ...

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Are concentrated by froth flotation process?

Which Cannot be concentrated by froth floatation process? Limonite, Fe2O3. H2O cannot be concentrated by froth flotation process.. Is calamine concentrated by froth flotation process? Amongst the following, the total number of ores which may be concentrated by froth floatation process is : haematite, bauxine, galena, copper pyrites, sphalerite, cassiterite, calamine, argentite, chalocite. ...

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K. Flota Tion of A Silicated Oxide Copper-cobalt Ore From the ... - Entmme

Flotation recoveries of about 94.8 % Cu and 90.1 % Co in a concentrate Ore samples assaying in average 17.5 % Cu and 1.5 % Co were recorded. A standard rougher-scavenger circuit has been recommended, since cleaning t1otation will induce important metal loss in tailings. 230

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A New Collector for Effectively Increasing Recovery in Copper Oxide Ore ...

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 unable to solve the problem of low recovery of micro-fine oxidized copper ores [8,9 ...

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A Multistage Sulphidisation Flotation Procedure for a Low Grade ...

This study was carried out to develop a flotation procedure for an oxide copper ore from a Region in Central Africa for producing an 18% copper concentrate for downstream processing at maximum recovery from a 4% copper feed grade.

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OXIDE FLOTATION - Cevher Hazırlama Mühendisliği

Flotation method is used for ores with lower content that cannot be enriched by physical methods. In flotation processes, it is generally preferred to float the mineral with a low amount. If the precious mineral is floated and the gangue remain in the sinking part, this process is called as direct flotation.

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Effect of Desliming on Flotation Response of Kansanshi Mixed Copper Ore

ditions. The minimum copper feed grade for the mixed copper ore was 0.5% Total Copper (TCu). The outcome of this work has shown that desliming improves the flotation response of the Kansanshi mixed copper ore. At a rougher copper concentrate grade of 8%, copper metal recoveries obtained with desliming were in excess of 70% compared to 58% ...

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Sulfide copper ore processing/deposits - Froth Flotation (Sulphide ...

Regarding the copper-zinc ore, your comments does mention the zinc recovery and the zinc head grade. If your design includes sequential flotation, it is necessary to evaluate the optimum zinc/copper ratio to get acceptable recoveries of both metals. If there were zinc oxide minerals, the zinc recovery would be affected negatively.

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mining flotation separator for copper mine

What is Flotation in Oxide Copper Extraction? May 30, 2022Amine flotation method, also known as cationic collector flotation method, is a commonly used flotation method for nonferrous metal oxide ores (copper, lead, zinc). ... copper ore plant flotation cylinder high frequency.

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Statistical investigation of flotation parameters for copper recovery ...

Mar 1, 2021A maximum recovery of copper was 88,58% while the grade was 2,88 with 32,29 copper oxide on the total massive copper under the flotation conditions: 1,15 pulp density, 10 g/t dosage collector, 10 g/t dosage frother, and 50 g/t dosage dispersant and the maximum grade 12,24 while the recovery was 47,02% under the flotation conditions: 1,15 pulp ...

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A New Technique for Recovering Copper From Complex Copper Oxide Ore by ...

Copper oxide ore has a complex composition, and a low recovery rate is often achieved via the traditional sorting method. A new combined process of flotation-high-gradient magnetic separation-leaching is proposed here to recover copper minerals. The test results showed that the flotation process was successful when using sodium sulfide as a vulcanizing agent and butyl xanthate as a ...

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A study of the flotation characteristics of a complex copper ore

treats three distinct ore types; oxide, sulphide and mixed. The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the Kansanshi ore body. This required an in-depth

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Copper Ore

The present paper deals with the results of characterisation and flotation studies carried out a low grade complex copper ore sample with a view to design process for its concentration to a product suitable for extraction of metal. EXPERIMENTAL The copper ore sample used for the studies assayed 0.95% Cu with 80.46% SiO2 and 9.55% A1,03.

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Chapter 6 Copper Production Technology - Princeton University

99.99 formation of the earth concentration of copper in earth's crust location of economic resource remove ore from ground and surrounding rock or overburden creation of large surface area as preparation for flotation removal of most gangue and collection of some byproduct minerals (e.g., mo, ni, pb, zn) to avoid further expense in materials .

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A Multistage Sulphidisation Flotation Procedure for a Low Grade ...

Keywords— Froth flotation, Sulphidisation, Copper oxide ore, Mineralogy, Recovery I. INTRODUCTION HIS article concentrates on the development of the flotation procedure for an oxide copper ore in the RCA. Oxide copper ores are very common in the RCA. These are formed by atmospheric weathering of near surface sulphide deposits [1].

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Flotation Test of a High Silica Copper Oxide Ore in Yunnan - Atlantis Press

33.10%, including 7.59% free copper oxide and 23.45% combined copper oxide.Results of phase analysis of copper are shown in Table 2. TABLE I THE MULTI-ELEMENT CHEMICAL ANALYSIS OF THE RUN OF MINE Elements Cu S SiO2 Al2O3 Fe2O3 MgO CaO Content/% 1.45 0.62 83.15 2.10 8.21 1.11 1.21 TABLE II RESULTS OF PHASE ANALYSIS OF COPPER Phase Sulfate ...

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US4193791A - Concentration of hydrated aluminum oxide minerals by ...

US4193791A US05/838,445 US83844577A US4193791A US 4193791 A US4193791 A US 4193791A US 83844577 A US83844577 A US 83844577A US 4193791 A US4193791 A US 4193791A Authority US Unite

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Feasibility Study of Differential Flotation of Cu-Pb-Zn Minerals from ...

In this research, flotation of copper, lead and zinc minerals from a copper oxide-sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO2. The experimental design methodology (RSM) was conducted to investigate the effect of ...

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Flotation of mixed oxide sulphide copper-cobalt minerals ... - ORE Home

This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as malachite and to a lesser extent chrysocolla. Three cobalt-bearing oxide minerals are observed in the mixed ore,i.e.hetero-

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(PDF) Effect of Ammonium Sulfide on Sulfidization Flotation of Malachite

4 days agoThe development, or exploitation, of copper oxide ores is making it increasing ly dif- ficult to maintain suf ficient levels of copp er sulfides to keep u p with the rising d emand for copper ...

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BENEFICIATION OF COPPER Et NICKEL ORES

Thus it is concluded that the nickel recoveries from Mosabani copper ore may be improved either by giving 30 mts. total flotation (6 min for Cu & 24 mins for Ni) time with a feed ground to 44% -200 mesh or with a total 8 minutes (2 mts for Cu & 6 mts for Ni) flotation with 70% -200 mesh feed. (ii) Sample No. 2

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Recovery of Copper From Oxide Copper Ore by Flotation and Leaching a ...

The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4 leaching. The ore with 4.21% copper grade used in this study was obtained from Çorum-Dangaz region of Turkey. Native copper, cuprite (Cu 2 O), tenorite (CuO), and malachite (Cu 2 (OH) 2 /CO 3

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Estimated Water Requirements for the Conventional Flotation of Copper Ores

Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings. To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is

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PGM extraction from oxidized ores using flotation and leaching - SciELO

flotation test work on an oxidized PGM ore from the Mimosa mine in Zimbabwe using a sulphide flotation scheme and an oxide flotation scheme using alkyl hydroxamate (AM810), an improved hydroxamate co-collector which has not been tested previously on oxidized PGM ores, and then do a direct comparison of these schemes.

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1 Froth Flotation - Fundamental Principles

This means that 95.7% of the copper present in the ore was recovered in the concentrate, while the rest was lost in the tailings. (c) The % Cu Loss can be calculated by subtracting the % Cu Recovery from 100%: % Cu Loss = 100 - 95.7 = 4.3% This means that 4.3% of the copper present in the ore was lost in the tailings.

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Controlled-potential sulphidization and rougher-cleaner flotation of an ...

Previous results have shown how con- trolled-potential sulphidization (CPS) can give improved metallurgy during rougher flo- tation of mixed oxide-sulphide copper ores._x000D_ Results in this paper, using different samples and different equipment, confirm the previous results and extend the application of CPS to cleaner flotation. By using CPS, faster flotation of copper minerals (chalcocite ...

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Sulfidisation Promotion Effect of Ammonium Sulfate on Flotation of ...

Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary; however, its dosage to the flotation pulp must be strictly controlled, as it is also a powerful depressant for copper sulfide minerals, and will, if in excess, depress the activated copper oxide minerals.

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BENEFICIATION OF COPPER Et NICKEL ORES

these, oxide and carbonate ores of copper such as cuprite, tenorite, malachite and azurite also ... The copper minerals are concentrated by flotation process usually employing xanthates as collectors and pine oil as frother. Most of the deposits are of complex nature and needed complicated processes for their beneficiation. Till recently there ...

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Acid leaching of oxide-sulfide copper ore prior the flotation - A way ...

Oxide-sulfide copper ore was sampled from the ore body Cerovo C1 (south deposit) and used in this study. The chemical composition of the ore sample is pre-sented in Table 1. From Table 1, it can be seen that the high copper concentration is in the sample, as well as the high copper oxide content, while the sulfide copper concentration is lower.

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FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide Ores - HZL Experience

FLOTATION PROCESS Flotation is a method of separating an ore species froth another, based on its hydrophobic surface characteristics either natural or induced when present as a suspension in water with air bubble. Due to the affinity of the desired mineral to adhere to air bubbles it is floated out of the ore slurry.

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