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flotation copper collectorless

A potential application of collectorless flotation in a

Oct 01, 2010· Approximately 76% of the copper was recovered with a concentrate grade of 22.5% within the first minute of the collectorless flotation. At the end of the 10 min flotation, 90% copper recovery and 10.8% concentrate grade were achieved. Meanwhile, pyrite recovery was low i.e. 2.9% recovery at the end of the 10 min flotation.

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A potential application of collectorless flotation in a

Request PDF A potential application of collectorless flotation in a copper/gold operation A recent study found that chalcopyrite in the Telfer ore could float without a collector whilst pyrite

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Collectorless flotation of chalcopyrite and sphalerite

With a copper-zinc ore, sphalerite is subsequently floated from the chalcopyrite tailings by activating it with copper sulphate. Results of the collectorless flotation tests are comparable to those obtained by using thiol collectors. The mechanisms of selective collectorless flotation are discussed on the basis of differences in the

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INFLUENCE OF FROTHER TYPE AND DOSE ON

Influence of frother type and dose on collectorless flotation of copper-bearing shale 549 minutes and after this time only the aqueous solution of frother was pumped to the column. In each flotation tests the feed and aqueous solution flow rates were controlled 3by a peristaltic pump. The feed flow rate was 18 dm /h and the aqueous

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Electrochemical investigation on collectorless flotation

With a copper-zinc ore, sphalerite is subsequently floated from the chalcopyrite tailings by activating it with copper sulphate. Results of the collectorless flotation tests are comparable to

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Depressing mechanisms of sodium bisulphite in the

Apr 04, 2005· The flotation results reported in this study show that sodium bisulphite strongly depressed the collectorless flotation of copper-activated sphalerite at pH 9 with nitrogen-purged conditions. The recovery of copper-activated sphalerite was decreased after sulphite addition from 50.8% to 5.8%.

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WO2000015346A1 Collectorless flotation Google Patents

The present invention relates to a process for improving the recovery of valuable sulphide minerals. The process involves determining an Eh range within which the valuable sulphide mineral may be recovered by flotation without the need of a collector. The slurry is then subjected to flotation in a pneumatic cell (50) at such a speed that the slurry remains within the Eh range during flotation.

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A potential application of collectorless flotation in a

Request PDF A potential application of collectorless flotation in a copper/gold operation A recent study found that chalcopyrite in the Telfer ore could float without a collector whilst pyrite

More

Collectorless flotation of chalcopyrite and sphalerite

With a copper-zinc ore, sphalerite is subsequently floated from the chalcopyrite tailings by activating it with copper sulphate. Results of the collectorless flotation tests are comparable to those obtained by using thiol collectors. The mechanisms of selective collectorless flotation are discussed on the basis of differences in the

More

INFLUENCE OF FROTHER TYPE AND DOSE ON

Influence of frother type and dose on collectorless flotation of copper-bearing shale 549 minutes and after this time only the aqueous solution of frother was pumped to the column. In each flotation tests the feed and aqueous solution flow rates were controlled 3by a peristaltic pump. The feed flow rate was 18 dm /h and the aqueous

More

Electrochemical investigation on collectorless flotation

With a copper-zinc ore, sphalerite is subsequently floated from the chalcopyrite tailings by activating it with copper sulphate. Results of the collectorless flotation tests are comparable to

More

The collectorless flotation of sphalerite

The effect of redox potential, pH, and copper-activation have been investigated in tests using samples of pure mineral. It has been found that in general, collectorless flotation of sphalerite can be accomplished at potentials greater than -200 mV, SHE, and is more readily carried out in acidic solutions.

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WO2000015346A1 Collectorless flotation Google Patents

The present invention relates to a process for improving the recovery of valuable sulphide minerals. The process involves determining an Eh range within which the valuable sulphide mineral may be recovered by flotation without the need of a collector. The slurry is then subjected to flotation in a pneumatic cell (50) at such a speed that the slurry remains within the Eh range during flotation.

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Collectorless Froth Flotation of Ultramafic Nickel Ore

May 02, 2010· Collectorless Froth Flotation of Ultramafic Nickel Ore Pre-treatment with Acid Salah Uddin. Copper ore flotation process Duration: 3:08. Eric Zhang 5,647 views. 3:08.

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Regularities of reagents effect on properties and

Quantitative parameters for optimal condition of collectorless and usual flotation were elaborated for such copper minerals as sulfides, selenides, tellurides and copper sulphursalts, containing arsenic, arsenic and iron, antimony, silver or bismuth. Optimal conditions for collectorless and usual flotation of oxidizing minerals are the same.

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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 dots” are seemingly a continuation of the trend started by “red dots”. Oxflo and Axis show that the more %Mass you recover

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(PDF) Collectorless flotation of marmatite with pine oil

The change in collectorless flotation of sphalerite with pH and Cu(II) concentration was correlated with the type and proportion of species present on the sphalerite surface.

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Copper activation option for a pentlandite–pyrrhotite

May 30, 2016· Different sulphide ores respond differently in the prospect of copper activation to thiols for froth flotation. With the BCL Selebi-Phikwe ore body, pentlandite–pyrrhotite–chalcopyrite co-occur and there is the constraint of fine pentlandite dissemination in the pyrrhotite, so that liberation is limited. In the presence of pentlandite, pyrrhotite can even be galvanically depressed.

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Collectorless flotation MIM Holdings Limited

The collectorless flotation of chalcopyrite requires that the flotation occurs in a neutral or slightly oxidising environment. Previous studies have shown that freshly fractured flotation of chalcopyrite increased when the redox potential (Eh) was in the neutral or slightly oxidising region.

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Flotation Collectors Mineral Processing & Metallurgy

Simply said; a Flotation Collectors is a chemical used to make the surface of minerals, which is metallic, hydrophobic or in layman’s term ‘afraid of water’ or ‘water hating’ as others like to say. This chemical used will behaved, in a way, as a wax would when you applied it to your car. After wax (or hydrophobic agent) is adhered to the surface, that surface with see water pearl

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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 Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore

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