alkaline flotation of copper sulphide
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alkaline flotation of copper sulphide

Copper Sulfide Flotation - Mineral Processing Metallurgy

2016-4-13  Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is

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The chemistry of flotation activation and depression of ...

The activation process in acidic media is essentially an electrochemical one. Sulphide activation by Cu(II) results in a sulphur-rich copper sulphide surface. In alkaline media, activation proceeds by a surface precipitation. The quantity of copper(II) adsorbed by the sulphides depends on the solution pH, Cu(II) concentration and oxygen content.

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Flotation of mixed copper oxide and sulphide minerals

2009-3-1  Flotation response for copper sulphide composite using PAX as the copper collector. Total PAX and MIBC doses were 14 g/t and 48 g/t, respectively. Download : Download full-size image; Fig. 3. Copper grade–recovery relationship after one additional

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(PDF) A Review of the Flotation of Copper Minerals

2021-11-11  Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is

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Effect of pulp potential on the flotation of a sulfide ...

Chalcopyrite, CuFeS2, is an important source of copper and is recovered from ore by the flotation process. Chalcopyrite is commonly associated with other metal sulfides, e.g. bornite, Cu5FeS4.

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Copper Flotation - Mineral Processing Metallurgy

2016-5-16  Copper Flotation. Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while

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FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1  History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

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Starch chemical modification for selective flotation of ...

2020-9-1  1. Introduction. Natural occurrence of carbonaceous material along with complex base metal sulphide ores as well as association with gold-ore deposits in the earth’s crust has long been recognized (Pugh, 1989, Afenya, 1991, Allan and Woodcock, 2001).At Century Mine, Mount Isa and McArthur River in Australia, the sphalerite, galena and copper sulphide deposits contain carbonaceous material ...

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Surface properties of copper-sulfide minerals with sodium ...

2020-9-1  A Chilean copper ore sample that contained chalcocite, bornite, and chalcopyrite was used in the rougher flotation tests. The mineral composition of the samples that was analyzed using a Mineral Liberation Analyser (MLA 650, FEI) is shown in Table 2, Table 3.The copper grade was 1.01%, and the sample contained bornite, chalcopyrite, and chalcocite as copper-sulfide minerals and calcite ...

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The electrochemical behaviour of copper in alkaline ...

The electrochemical behaviour of copper in NaHCO 3 solution (pH 9) and NaOH solutions (pH 14) in the presence of sodium sulphide (10 −3 to 5×10 −2 m) was investigated by using rotating disc electrode and rotating ring-disc techniques, triangular potential scanning voltammetry and potentiostatic steps. When the potential increases from −1.2V upwards, copper sulphide layers are firstly ...

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FLOTATION OF COPPER AND NICKEL SULFIDES FROM

A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp with a collecting agent of the xanthate family to activate the nickel and copper sulphide materials, the pulp is conditioned with a flocculating agent to ...

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Mining Industry Copper Sulfide Ore and Flotation Process ...

2019-7-9  1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

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The chemistry of flotation activation and depression of ...

The activation process in acidic media is essentially an electrochemical one. Sulphide activation by Cu(II) results in a sulphur-rich copper sulphide surface. In alkaline media, activation proceeds by a surface precipitation. The quantity of copper(II) adsorbed by the sulphides depends on the solution pH, Cu(II) concentration and oxygen content.

More

The separation of Cu/Fe sulfide minerals at slightly ...

The bench-scale and industrial flotation test results of Jiangxi Copper Corporation Yongping Copper Mine showed that the flotation separation of Cu/Fe sulfide minerals has been achieved at pH ...

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FLOTATION OF COPPER-NICKEL SULFIDE ORES - DAVID

FLOTATION OF COPPER-NICKEL SULFIDE ORES. United States Patent 3667690. Abstract: Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent ...

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Process for the flotation of base metal sulfide minerals ...

In copper sulfide flotation, which dominates the sulfide flotation industry, for example, lime is used to maintain pH values over 10.5 and more usually above 11.0 and often as high as 12 or 12.5. In prior art sulfide flotation processes, pre-adjustment of the pH of the pulp slurry to 11.0 and above is necessary, not only to depress the ...

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Effect of pulp potential on the flotation of a sulfide ...

Chalcopyrite, CuFeS2, is an important source of copper and is recovered from ore by the flotation process. Chalcopyrite is commonly associated with other metal sulfides, e.g. bornite, Cu5FeS4.

More

(PDF) A Review of the Flotation of Copper Minerals

2021-11-11  Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...

More

FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1  History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

More

The electrochemical behaviour of copper in alkaline ...

The electrochemical behaviour of copper in NaHCO 3 solution (pH 9) and NaOH solutions (pH 14) in the presence of sodium sulphide (10 −3 to 5×10 −2 m) was investigated by using rotating disc electrode and rotating ring-disc techniques, triangular potential scanning voltammetry and potentiostatic steps. When the potential increases from −1.2V upwards, copper sulphide layers are firstly ...

More

Mining Industry Copper Sulfide Ore and Flotation Process ...

2019-7-9  1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

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Method of flotation enrichment of sulphide ores

FIELD: mining. SUBSTANCE: invention relates to concentration of minerals and may be used in processing of sulphide copper-nickel ores. Method includes double-stage grinding of ore in alkaline medium, collective flotation of sulfide minerals in the presence of

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Flotation of upper zone copper sulfide ores - Exxon ...

In another embodiment of the present invention, an alkaline conditioned ore containing copper sulfide and oxidized copper sulfide minerals is treated prior to flotation by adding a collector or mixture of collectors, optionally a frother or mixture of frothers, and a surface modifying agent such that the platinum electrode potential of the ore ...

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The separation of Cu/Fe sulfide minerals at slightly ...

The bench-scale and industrial flotation test results of Jiangxi Copper Corporation Yongping Copper Mine showed that the flotation separation of Cu/Fe sulfide minerals has been achieved at pH ...

More

FLOTATION OF COPPER-NICKEL SULFIDE ORES - DAVID

FLOTATION OF COPPER-NICKEL SULFIDE ORES. United States Patent 3667690. Abstract: Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent ...

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Selectively Depress Copper-Activated Pyrite in Copper ...

2021-1-26  Copper sulphide ore deposits are of great economic significance for copper extraction. In order to enrich copper sulphides, froth flotation at alkaline pH is typically applied to reject associated gangue minerals, in particular pyrite before the subsequent pyrometallurgical treatment to extract copper from copper sulphides [].The selective separation in flotation is driven by a difference in ...

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(PDF) A Review of the Flotation of Copper Minerals

2021-11-11  Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...

More

FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1  History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

More

Flotation Reagents - Mineral Processing Metallurgy

2016-6-8  An effective sulfide promoter in either acid or alkaline circuits. An excellent copper reagents. Minerec B Similar to Minerec A. Undiluted to grinding circuit. .05 to .25: Especially adapted to flotation of copper and gold ores in lime circuit. Non-frothing

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Acid leaching of oxide–sulfide copper ore prior the ...

2015-11-26  453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

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