flotation of copper sulphate

flotation of copper sulphate

Effect of Copper Sulfate on Zinc Sphalerite Flotation

2016. 10. 2.  Copper sulfate, when used as an activator in flotation of sphalerite, forms an invisible but physically detectable film of cupric sulfide on the surface of the sphalerite particles, as evidenced by increased electric conductivity, by chemical metathesis, and by the ability to deactivate with solutions of alkali cyanides, which are known as solvents of copper sulfides.

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The role of copper sulphate in pyrite flotation ScienceDirect

1988. 1. 1.  Keywords Pyrite; copper sulphate; flotation INTRODUCTION Copper sulphate is added to the pulp on many South African pyrite flotation plants. It has been found that this improves the recovery and grade of the pyrite. In some instances it is used to enhance the flotation of the pyrite above pH values of 9.

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Copper Sulfide Flotation Mineral Processing Metallurgy

2016. 4. 13.  Copper Sulfide Flotation Circuit The pulp from the Conditioner is treated in a 10-cell “Sub-A” Flotation Machine and a 4-cell “Sub-A” Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly mixed into the pulp ahead of flotation.

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The effect of copper sulphate addition on the recovery of

2009. 8. 27.  immediately prior to flotation. Reagents A 1% solution of copper sulphate was prepared using CuSO4.5H2O. The copper sulphate was always added prior to collector addition. As specified in the experiments performed, a dosage of either 30 g/ton or 90 g/ton was used. A copper sulphate dosage of 30 g/ton is the stoichiometric amount

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THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

2020. 12. 8.  Froth flotation is a mineral beneficiation process implemented in the recovery of valuable minerals from unwanted gangue material. Copper sulphate is used as an activator in the flotation of base metal sulphides (BMS) as it promotes interaction of collector molecules with the mineral surfaces. It is also used in certain platinum

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Mining Industry Copper Sulfide Ore and Flotation Process

2019. 7. 9.  The floatability of common copper sulfide minerals is reduced in the following order: chalcopyrite > covellite > bornite > chalcopyrite. (4) The floatability of copper sulfide minerals is also affected by factors such as crystal grain size, grain size, etc. fine grain is not easy to float.

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CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

2015. 10. 19.  Chalcocite (Cu2S) and chalcopyrite (CuFeS2) are the two most commonly floated copper sulphide minerals. Bornite (Cu5FeS4) and covellite (CuS) and energite (Cu3AsS4) are normally present in lesser quantities. The complete flotation of chalcocite is achieved between ph = 1 to ph = 10 with ethyl xanthate. The resulting hydrophobic species is CuX.

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Reaction of metallic iron and copper sulphate in the flotation of

2020. 10. 13.  anhydrous copper sulphate. For flota-ti. on the follOW'ing reagents were added: PO'lmds Per Ton Sodium. ethyl xantmte • • • • • • steen. distilled. pine. 011 •••• • • Copper au1.phate (anhydrous) • • 0.28.24.80 (dopper sulphate 2.00 pounds per ton). WhEil metallics were. absent. the ore was. remarkably. amen-able to concentration; the. recovery was. gS.O

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Froth Flotation Sulphides [Experiment 2] metallurguy

2011. 9. 28.  0.05 kg/t of copper sulphate. 50g/t of sodium ethyl xanthate. 0.02 kg/t of frother. So, we had to calculate the amounts of reagents we use for this experiment as we were going to use one sample (0.5kg) for froth flotation in a the laboratory flotation cell. Following is how we calculated the amount of copper sulphate equivalent to 0.05 kg/t.

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DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS FLOTATION

flotation. A series of de-zincing on lead-copper flotation tests has been conducted in the laboratory to reduce unwanted zinc content. Dosages variation of common sphalerite depressant such as sodium cyanide, sodium bisulphite combined with zinc sulphate were employed in addition to flotation time and pH regula-tors alteration.

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CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

2015. 10. 19.  Lecture 5 Flotation 1 CHAPTER 7 Sphalerite is activated with copper sulphate 2+2+ZnS + Cu CuS + Zn Forming copper sulphide on the surface. The stability of CuS is greater than ZnS and Zn(OH) 2. CuS 4.0 x 10-36 ZnS 2.6 x 10–26 PbAX 2 1.0 x 10 24

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Froth Flotation Sulphides [Experiment 2] metallurguy

2011. 9. 28.  0.05 kg/t of copper sulphate. 50g/t of sodium ethyl xanthate. 0.02 kg/t of frother. So, we had to calculate the amounts of reagents we use for this experiment as we were going to use one sample (0.5kg) for froth flotation in a the laboratory flotation cell. Following is how we calculated the amount of copper sulphate equivalent to 0.05 kg/t.

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The effect of copper sulphate on froth stability

Copper sulphate is used as an activator in the flotation of base metal sulphides (BMS) as it promotes interaction of collector molecules with the mineral surfaces. It is also used in certain platinum group minerals (PGM) flotation operations in South Africa although the mechanism by which improvements in flotation performance are achieved is not well understood.

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Copper activation option for a

2016. 5. 30.  At 15 g/ton copper sulphate dosage, final silica recovery in the flotation concentrate is above the recovery under the condition without copper addition (Fig. 8a). Since the cumulative grade of silica in the concentrate increased with flotation time all through (Fig. 8 b), this recovery pattern characterizes entrainment [ 21,22 ].

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The effect of a copper sulphate addition on the recovery

Low dosages of copper sulphate resulted in no chromite activation. This was observed at low depressant dosages of both IMP4 (guar gum) and KU5 (carboxymethyl cellulose (CMC)). When the depressant dosages were increased, at higher copper sulphate dosages, it was observed that the activated chromite was depressed by IMP4, but that the activation was still significant with the use of

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Flotation Reagents’ Types and Working Principles

2019. 3. 15.  Among the flotation reagents, commonly used activators for flotation are sulfuric acid, sulfurous acid, sodium sulfide, copper sulfate and so on. Inhibitors: It is a kind of reagents mainly used to increase the hydrophilicity of minerals and to form a hydrophilic film on the surface of the ore particles in flotation process.

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DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS FLOTATION

Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in the plant practice operation due to part of sphalerite was progressively entrapped into lead-copper bulk flotation. A series of de-zincing on lead-copper flotation tests has been conducted in the laboratory to reduce unwanted zinc content.

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US4090867A Flotation of non-sulphide copper ores

Flotation of a variety of non-sulphide and mixed sulphide plus non-sulphide copper ores is disclosed. Stabilization of non-sulphide copper mineral surfaces by sulphidization is initially required and a selective complexing agent able to complex with the copper sulphide surface is then added as conditioner. Diphenylguanidine proved to be a highly selective and fast acting surface conditioner

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Interpreting the role of reagents in the flotation of platinum-

2009. 8. 26.  generally considered to be a slow floating sulphide, with the flotation rate for pentlandite being in between. It has also been observed that the minerals have varying responses to different conditions (Ekmekçi et al., 2005, 2006, Bradshaw et al., 1999, 2006). The addition of copper sulphate

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1 Froth Flotation Fundamental Principles

2009. 8. 27.  After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.

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Copper activation option for a

2016. 5. 30.  At 15 g/ton copper sulphate dosage, final silica recovery in the flotation concentrate is above the recovery under the condition without copper addition (Fig. 8a). Since the cumulative grade of silica in the concentrate increased with flotation time all

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FLOTATION OF COPPER-NICKEL SULFIDE ORES DAVID

Referring to the drawing, in this preferred procedure which is applied to the flotation of copper and nickel sulphides from its ore, the wet grinding and first conditioning step are carried out simultaneously, the ore being fed to a wet grinding system together with a wetting agent, at least one alkaline reagent, and an activator for the nickel sulphide minerals, namely copper sulphate.

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FLOTATION OF COPPER SULFIDE ORES STEPHAN CHEM

I claim as my invention 1. A flotation promoter for the selective water flotation of thin finely ground copper-bearing sulfide ores and the suppression of iron pyrites therein, finely ground state consisting essentially of an aliphatic hydrocarbon sodium sulfate having a C 8 C 10 carbon chain and having propylene oxide chemically combined therewith in an amount in the range of 5 to 30 mols.

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The effect of a copper sulphate addition on the recovery

Abstract. Chromite and talc are two major gangue minerals in platinum bearing UG2 ore processed from the Bushveld Complex in South Africa. During flotation, talc is effectively depressed by the addition of depressants. Chromite, on the other hand, is considered to be hydrophilic, its recovery is believed to follow water recovery and therefore recovered by entrainment only.

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A Comparative Study of Kinetics of Flotation of a Copper-Nickel

2012. 11. 30.  similar study on the flotation of a copper-zinc ore using arylhydroxamic acids, Natarajan and Nirdosh (2006) observed flotation of sphalerite without activation by copper suphate and highlighted the economic importance of eliminating copper sulphate from the xanthate reagent scheme. The current

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Critical importance of pH and collector type on the

2021. 2. 4.  In the zinc flotation experiments, after pH adjustment, conditioning was performed by adding copper sulphate as sphalerite activator (250 g/ton for 2

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Flotation Reagents’ Types and Working Principles

2019. 3. 15.  Flotation reagents refers to the agent that used in mineral flotation process, which can adjust the flotation behavior of minerals thus achieving a good effect of mineral separation.Currently using flotation reagents is the most flexible, effective, and convenient method of controlling flotation process.The commonly used flotation reagents can be mainly divided into three types according to

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Flotation of Copper oxide ore Fodamon Machinery

For example, when copper is in the form of carbonate (malachite, blue copper ore), the flotability is relatively good, while the flotability of silicate (silica malachite) is poor, free copper oxide is easy to float, and copper oxide can not be recovered by a single flotation method. Copper

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1 Froth Flotation Fundamental Principles

2009. 8. 27.  After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.

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Sulfidisation Promotion Effect of Ammonium Sulfate on

This paper presents the sulfidisation promotion effect of ammonium sulfate on the sulfidisation flotation of both malachite and copper oxide ores. 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

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