flotation of oxide copper ores

Improving the efficiency of oxide copper–cobalt ores …

Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo. From laboratory investigations, sodium hydrosulphide proved to enhance flotation selectivity of copper and cobalt towards the gangue minerals, while ammonium sulphide emerged as a strong non-selective sulphidiser.

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RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION …

At those years in the past, at one of the Soviet plants, 1% copper containing oxide copper ore was floated with a recovery of 80% and a copper grade of 19%. Wills (2006) mentioned that oxide cap of primary copper deposits can be mined selectively and successfully processed by froth flotation.

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US3845862A

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 ...

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copper flotation

The practice of flotation of oxide copper and copper–cobalt minerals dates back to about 60 years ago. Research work on beneficiation of oxide copper and copper–cobalt ore was mainly carried out in Belgium (University of Liege), in France (BRGM) and more recently in North America at various research facilities. There are two principal flotation methods for beneficiation of oxide copper and ...

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CN105750093A

The invention discloses a flotation method of copper oxide ores. The method comprises the following steps: crushing and grinding ores, and performing floatation on the ores. Aiming at different distribution of the copper oxide ores, the flotation method adopts ...

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A study of the flotation characteristics of a complex copper ore

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 analysis of the mineralogy of the feed as well as tailings samples

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Copper Oxide Flotation

 · The very low oxide content in the ores does not justify added cost of recovery by flotation. It is generally assumed that sulfidization-flotation is the preferred method. The use of alkyl hydroxamates has been limited to academic interest. Practical guidelines for the use of alkyl hydroxamates in a plant are not available.

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Handbook of Flotation Reagents

13 Flotation of Copper-Zinc Ores ..... 295 13.1 Some Geological and Mineralogical Features of Copper-Zinc Ores Relevant to Flotation ..... 295 13.2 Flotation Properties of Copper-Zinc 296 13.3 Reagent Practice in Flotation of Low and Medium Iron Sulfide ...

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copper flotation

Copper Oxide Flotation - Mineral Processing & Metallurgy

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Laboratory Evaluation of the Flotation Response of a Copper Cobalt Oxide …

scavenger flotation and a cleaner bank. The oxide ores processed at Kambove concentrator are mainly originating from Shangolowe mine with about 2.90% copper and 0.12% cobalt. Oxide ores do not easily lend themselves to froth flotation. The flotation of such

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Oxide Flotation Collector | Collector for Copper Oxide Ore

 · In this flotation tests and evaluation for the best collector for copper oxide "ore" 911Metallurgy continues with material that''s 60% Oxide copper. Sample C: 1.7% Copper about 60% Oxide Cu Rougher Tests: Both reagents appear to behave similarly as the "blue ...

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Copper extraction

Copper oxide ores have occasionally been treated via froth flotation via sulfidation of the oxide minerals with certain chemicals which react with the oxide mineral particles to produce a thin rime of sulfide (usually chalcocite), which can then be activated by the

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How to Process Copper Ore: Beneficiation Methods and …

 · Flotation is one of the commonly used mineral processing techniques for copper oxide ores. According to the different properties of copper oxide ores, there are sulphidizing flotation, fatty acid flotation, amine flotation, emulsion flotation and chelating agent 1.

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SOME ASPECTS OF LABORATORY FLOTATION OF Co-Cu MINERALS FROM MIXED OXIDE ORES …

attempts to isolate some of the more important variables affecting the flotation of copper and cobalt oxide minerals from these weathered deposits. This paper describes some early results achieved and experiences gained with these different ores ahead of a more

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Figure 14 from Feasibility Study of Differential Flotation of …

Fig. 14 The recovery results of the complementary tests and their comparison with the optimal results with the software - "Feasibility Study of Differential Flotation of Cu–Pb–Zn Minerals from Copper Sulfide–Oxide Ores" DOI: 10.1007/s12666-020-02069-6 Corpus ID

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concentration of copper oxide ores

US3845862A Concentration of oxide copper ores by 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 ...

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copper flotation

flotation of oxide copper-cobalt ores, using sodium hydrosulphide as the sulphidising agent, has been practiced in Katanga, Democratic Republic of Congo. With sodium hydrosulphide, nearly 77% of the copper and 75% of the cobalt were recovered with a Fax: ...

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A New Technique for Recovering Copper from Complex …

As such, scientists have been looking for alternatives and have identified recovery of copper as well as efficient utilization of copper oxide ores as a promising solution. Presently, several methods including floatation, leaching, and metallurgical processes have been developed to enable effective treatment of copper oxide ores.

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Development and optimization of mixed sulphide/oxide copper …

flotation of copper oxide or mixed ores is sulphidization, which was first developed with industrial success on Pb-Zn oxide ores in Australia (Crozier, 1991). The method involves multistage addition of sodium sulphide (Na2S), sodium hydrosulphide (NaHS), or4)2 ...

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Acid leaching of oxide–sulfide copper ore prior the flotation – A …

Copper Mine Cerovo, as well as the other ore bodies in its vicinity, contains significant amount of oxide copper minerals (>40%) in the upper layers. Pro-cessing of such mixed ores by the existing concen-tration technologies leads to the oxide copper losses. In order to increase an overall degree of cooper utiliz-ation, a study of the cooper oxides leaching from oxide–sulfide ore followed by flotation of cooper sul-phide minerals from the leach residue was presented. Maximum copper oxide extraction during the single leaching stage was 73% with 0.3 M H2SO4 leaching solution and after 180 min. Maximum sulfide copper extraction in the flotation process was 78% for 20 min and amount of the PEX collector of 30 g/t. Achieved total copper recovery in the ore leaching and flotation process is about 75%. Introducing the leaching process prior to the flotation process is the main reason for inc-reases in the total copper recovery. This is due to the valorization of most of the oxide copper, …

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BENCH SCALE FLOTATION OF CHRYSOCOLLA WITH

1. Introduction Chrysocolla forms a large potential copper resource that has not been concentrated due to difficulties associated with floating ores containing this mineral. The flotation of this oxide copper mineral is an area of considerable interest to ...

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The Use of Polysulfide as an Alternative Sulfidising Reagent …

A sulfide ion selective electrode was used to control sulfidiser addition in the flotation testing of a synthetic and a naturally occurring ore containing malachite in order to compare the behaviour of sodium sulfide and calcium polysulfide. Both slug and controlled potential sulfidisation methods of addition were used. Under defined optimum CPS conditions, calcium polysulfide was a more ...

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Effect of Desliming on Flotation Response of Kansanshi Mixed Copper …

Kansanshi Sulfide Oxide Copper Ore, Flotation, Baseline, Desliming 1. Introduction Flotation recovery of valuable minerals from ores is a function of particle size and it is therefore anticipated that variation in the granulometric characteristics of feed to a flotation

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Flotation of Copper oxide ore

Flotation of Copper oxide ore. The floatability of copper oxide ores is generally worse than that of copper sulfide ores, and is greatly influenced by the existing form of copper in minerals and gangue composition. For example, when copper is in the form of carbonate (malachite, blue copper ore), the flotability is relatively good, while the ...

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Direct Flotation Of Copper Oxide Ore

Copper oxide ore is used to refine copper oxide. Copper oxide ore is produced in the Philippines, Pakistan and other regions. The monthly supply is about 1,000 tons to 2,000 tons. Copper oxide (CuO) is a black oxide of copper. The most common on the market today is 98% copper oxide and 99.95% copper oxide. The … Direct Flotation Of Copper Oxide Ore Read More »

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Flotation of oxide copper ore with sodium oleate from the …

Oxide copper ore flotation with 800 g/ton sodium oleate at pH 9 yielded 14.4% Cu with 83.3% recovery in a rougher circuit. To enhance the flotation performance, in terms of %Cu, optimum dosages of sodium silicate, quebracho, and

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List of copper ores

Following are the list of minerals that serve as copper ores in the copper mining process: Name Formula % Copper when pure Chalcopyrite CuFeS 2 34.5 Chalcocite Cu 2 S 79.8 Covellite CuS 66.5 Bornite 2Cu 2 S·CuS·FeS 63.3 Tetrahedrite Cu 3 SbS 3 + x(Fe 6 ...

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copper flotation

Copper oxide ores have occasionally been treated via froth flotation via sulfidation of the oxide minerals with certain chemicals which react with the oxide mineral particles to produce a thin rime of sulfide usually chalcocite which can then be activated by the froth ...

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sulphidation of copper oxide ores for flotation

oxide zinc and lead mineral flotation - BINQ Mining oxide zinc and lead mineral flotation Grinding Mill China. Lead-Zinc ores Often metabisulphide or other sulphidation chemicals are added with the zinc sulphate ... beneficiation of oxide ore of copper - Cobalt ...

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copper ore flotation machine process

Sulphidation Of Copper Oxide Ores For Flotation. 453 Acid leaching of oxidesulfide copper ore prior the flotation A way for an increased metal recovery Miroslav D. Soki1 Vladan D. Miloevi1 Veliar D. Stankovi2 Vladislav Lj.Matkovi1 Branislav R. Markovi1 1Institute

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sulphidation of copper oxide ores for flotation

copper ore processing technology development and research in the flotation of copper oxide ore includes direct flotation and indirect flotation. direct flotation is mainly used to treat copper oxide ores with simple mineral composition and uncomplicated ...

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Flotation of a copper sulphide ore from Okiep using thiol …

Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The collectors sodium ethyl xanthate (C2-X), sodium diethyl dithiophosphate (di-C2-DTP) and sodium diethyl dithiocarbamate (di-C2-DTC) were supplied by Senmin Mining

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Flotation of mixed oxide sulphide copper-cobalt minerals using …

number of operations extracting copper and cobalt from Congolese ores data about recovery of copper and cobalt is relatively scarce (Schmidt et al., 2016). Typically, 85% for copper and 75% for cobalt is recovered from sulphide ores while, for oxide ores, 75% of

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Copper Ore Types: Sulfides vs. Oxides | An Investor''s …

 · As with oxide ores, SX-EW tech is used to recover copper from a pregnant leach solution. Secondary sulfides, which are formed by supergene secondary enrichment, are resistant to …

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