recovery gold from copper float concentrate

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Gold and copper recovery from flotation concentrates of ...

24/01/2018  The authors present the data on the substance analysis of gold–copper–arsenic flotation concentrate. Gold and copper recovery by autoclave leaching of the concentrate has been studied. It is found that maximum gold and copper recovery under optimum conditions reaches 96 and 92%, respectively. The profitability of the proposed process flowsheet is proved by the technical-and

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recovering Gold from Copper Concentrate via the ...

gold recovery is a suffi ciently high leaching yield of soluble sulfi des that hinder the dissolution of gold. The difference in the gold leaching kinetics in the two concentrates studied is probably due to the presence of coarse-grained gold in the Pyhäsalmi copper concentrate. References 1. C. Hoepfner, “Electrolytic Production of Metals”, U.S.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

(PDF) Recovering gold from copper concentrate via the ...

The total gold recovery in the test was 94%, with a major portion of gold recovered during the last 2 h with higher redox potential.The leaching of gold in the Pyhäsalmi copper concentrate was signifi cantly slower than in the other concentrate; therefore, the mode of occurrence of gold in the Pyhäsalmi concentrate was studied in more detail. About 20% of the gold in the copper concentrate is

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Gold Extraction Recovery Processes - 911 Metallurgist

When gold is recovered by flotation, a high grade concentrate contains gold and can give an extra value to copper and lead concentrates. The concentrate can be ground, roasted, treated by cyanidation and the final product is gold bullion.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Silver Gold Recovery Flotation Process - 911 Metallurgist

17/10/2016  Supposing, for example, that the recovery of the gold involved lowering the grade of a copper concentrate with unwanted pyrite, the fall in the value of the concentrate due to the presence of the pyrite must be more than counterbalanced by its rise in value due to the precious metal content if the operation is to be profitable.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Optimisation of gold recovery by selective gold flotation ...

01/02/2001  The gold recovery is then maximized to approximately 90%, with 70% of the gold being recovered with the pyrite and 20% with the copper concentrate. Iliev et al. (1996) studied the enhanced gold and silver recovery from the chalcopyrite/pyrite ore, from the Bucim copper and gold mine in Macedonia. The study involved the use of two new collectors; ORFOM C0800 (Phillips Chemical Company) and Penflot 3 (Merks). These two collectors showed a significant improvement in gold and silver recovery ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recovery of Gold as By-Product from the Base-Metals ...

01/01/2016  Gold is often associated with chalcopyrite in ore deposits, and efforts are therefore made at the mine to maximize the recovery of both gold and copper, either using a combination of gravity and flotation techniques or flotation alone. Using available techniques, some of the gold can be recovered directly as a gold concentrate, with, for example, gravity techniques in the grinding circuit, but usually significant quantities remain within the copper concentrate.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

CN100485059C - Method for recovering gold from

The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro- metallurgically. The concentrate is first...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Copper Flotation - 911 Metallurgist

16/05/2016  In normal practice a recovery of over 90% of the copper which is present as a sulphide is generally possible, whatever the flotation process or circuit employed. As regards the average grade of concentrate, no more can be said than that it depends on the class of the copper-bearing minerals present and their mode of occurrence and on the character of the gangue. It usually contains over 20% of copper, but a difficult chalcopyritic ore may yield a concentrate

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Metallurgical Accounting Formulas Concentration and ...

08/09/2013  R = 100 c/Kf = recovery % By weights F and C, plus assays c and t R = 100 Cc / (Cc+t (F—C)) = recovery % A copper concentrator is milling 15,000 tons/day of

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Gold and copper recovery from flotation concentrates of ...

24/01/2018  The authors present the data on the substance analysis of gold–copper–arsenic flotation concentrate. Gold and copper recovery by autoclave leaching of the concentrate has been studied. It is found that maximum gold and copper recovery under optimum conditions reaches 96 and 92%, respectively. The profitability of the proposed process flowsheet is proved by the technical-and

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

(PDF) Recovering gold from copper concentrate via the ...

This equals the recovery of 87% gold and 98% copper, respectively. The gold-containing solution was pumped through small carbon columns that removed gold down to a level less than 0.02 mg/L. Another commercial chalcopyritic copper concentrate containing 23.5% copper and 4.3 ppm gold was studied in a series of batch tests with a 5 L reactor ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recovering gold from copper concentrate via the ...

Recovering gold from copper concentrate via the HydroCopper™ process. Olli Hyvärinen 1, Matti Hämäläinen 1, Pertti Lamberg 1 Jussi Liipo 1 JOM volume 56, pages 57–59 (2004)Cite this article. 158 Accesses. 8 Citations. Metrics details. Abstract. HydroCopper™ technology comprises a chloride-leaching method for copper sulfide concentrates and copper production up to semi-products. As ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Size dependent gold deportment in the products of copper ...

the sulphur content of the final copper concentrate11. The addition of depressants to reject iron sulphides and gangue from the concentrate inevitably leads to a reduction in gold recovery. Associations with hydrophilic iron oxides and silicates are also widespread. Introduction of iron oxide layers on free gold often occurs during primary grinding and regrinding of concentrates, which may ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

US7785395B2 - Method for the recovery of gold from ...

The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro-metallurgically. The concentrate is first subjected to leaching with a concentrated solution of alkali chloride and copper (II) chloride, by means of which the copper minerals and some of the gold in the concentrate are made to dissolve.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Gold Recovery via Copper Electrolysis - Part 1 - YouTube

09/06/2019  In part 1 I explain the way Gold can be recovered from a mixture of Gold and Copper (Gold plated pins for example) via electrolytic refining of Copper. This ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Metallurgical Accounting Formulas Concentration and ...

08/09/2013  R = 100 c/Kf = recovery % By weights F and C, plus assays c and t; R = 100 Cc / (Cc+t(F—C)) = recovery % A copper concentrator is milling 15,000 tons/day of a chalcopyrite ore assaying 1.15% copper. The concentrate and tailings produced average 32.7% and 0.18% copper, respectively. I let you do the math! Three product (bi-metallic) formulas

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recover Cobalt Copper from Sulfide Concentrates

27/02/2018  In 1979, the Bureau undertook laboratory research to develop a process to recover cobalt and copper from a concentrate supplied by Noranda. The supplied concentrate had a 10-fold higher copper concentration than that used in the Noranda research and was similar to that used in the Calera operation. Leaching of this concentrate at 155° C resulted in the formation of the troublesome sulfur ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Leaching and recovery of platinum group metals from UG-2 ...

development work was carried out on a copper/nickel float concentrate from Northmet containing PGM10, with recoveries up to 98 per cent for Pt, 95 per cent for Pd and 96 per cent for Au being obtained. Results, when PLATSOL was performed on other feed materials, were not as good, but leaching had not been optimized10. A PLATSOL-type leach was used at Mintek in an attempt to recover

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

How to Calculate Grade and Recovery with Examples ...

02/03/2021  The valuable masse in the concentrate or the feed is calculated by multiplying the concentrate mass (or sample masse) by the grade as in the grade formula above (1). Then Rc= 100* (Mcc*Gc’)/ (Mt*Gc) (3) In practice, we take one sample or more from the concentrate, and we prepare it for assays to get the grade, then we calculate the recovery.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Gold and copper recovery from flotation concentrates of ...

24/01/2018  The authors present the data on the substance analysis of gold–copper–arsenic flotation concentrate. Gold and copper recovery by autoclave leaching of the concentrate has been studied. It is found that maximum gold and copper recovery under optimum conditions reaches 96 and 92%, respectively. The profitability of the proposed process flowsheet is proved by the technical-and

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recovering gold from copper concentrate via the ...

Recovering gold from copper concentrate via the HydroCopper™ process. Olli Hyvärinen 1, Matti Hämäläinen 1, Pertti Lamberg 1 Jussi Liipo 1 JOM volume 56, pages 57–59 (2004)Cite this article. 158 Accesses. 8 Citations. Metrics details. Abstract. HydroCopper™ technology comprises a chloride-leaching method for copper sulfide concentrates and copper production up to semi-products. As ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Size dependent gold deportment in the products of copper ...

the sulphur content of the final copper concentrate11. The addition of depressants to reject iron sulphides and gangue from the concentrate inevitably leads to a reduction in gold recovery. Associations with hydrophilic iron oxides and silicates are also widespread. Introduction of iron oxide layers on free gold often occurs during primary grinding and regrinding of concentrates, which may ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

US7785395B2 - Method for the recovery of gold from ...

The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro-metallurgically. The concentrate is first subjected to leaching with a concentrated solution of alkali chloride and copper (II) chloride, by means of which the copper minerals and some of the gold in the concentrate are made to dissolve.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Separation efficiency improvement of a low grade copper ...

is leached with cyanide to recover gold. Both trains produce a copper concentrate with significant quantities of non-sulphide gangue minerals. The target concentrate grade is approximately 16% Cu, with copper minerals, chalcopyrite and chalcocite, being the most abundant copper bearing minerals in the feed to the plant. Stoechiometrically, these minerals contain 34.6 and 79.9% Cu respectively ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

US4670052A - Process for the recovery of gold from a ...

A process for the recovery of gold from a precious metal bearing sludge concentrate is disclosed. The process comprises the steps of leaching the sludge with hydrochloric acid and hydrogen peroxide to solubilize at least gold, palladium and platinum, removing silver from the leach slurry as insoluble silver chloride and selectively precipitating gold from the leach solution remaining after ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Leaching and recovery of platinum group metals from UG-2 ...

development work was carried out on a copper/nickel float concentrate from Northmet containing PGM10, with recoveries up to 98 per cent for Pt, 95 per cent for Pd and 96 per cent for Au being obtained. Results, when PLATSOL was performed on other feed materials, were not as good, but leaching had not been optimized10. A PLATSOL-type leach was used at Mintek in an attempt to recover

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Economic Recovery and Upgrade of Metals From Middling and ...

concentrate streams as well as tailings streams to compliment a concentrator flowsheet in a refractory gold and base metals setting. The value proposition is the isolation of a low grade middlings concentrate from the primary circuit or the tailings stream for upgrading to an intermediate product with an equal or higher grade than the primary concentrate to allow blending for sale. This allows ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

The leaching and adsorption behaviour of gold ores

The flotation feed and copper concentrate showed an enhancement in gold extraction due to the activated carbon adsorbing gold that would otherwise have been preg-robbed. However, this mechanism did not explain the behaviour of the pyrite concentrate. For this ore the enhanced extraction was due to a combination of equilibrium and preg-robbing effects. Diagnostic leaching was used to show that ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

How to Calculate Grade and Recovery with Examples ...

02/03/2021  The valuable masse in the concentrate or the feed is calculated by multiplying the concentrate mass (or sample masse) by the grade as in the grade formula above (1). Then Rc= 100* (Mcc*Gc’)/ (Mt*Gc) (3) In practice, we take one sample or more from the concentrate, and we prepare it for assays to get the grade, then we calculate the recovery.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

(PDF) Recovering gold from copper concentrate via the ...

The recovery of gold in the HydroCop- producing copper is the smelting of The recovery of copper after chloride per process has been studied with two copper sulfide concentrates. An alternate leaching by EW seems a natural option, different feed materials. Pyhäsalmi method that is growing in popularity particularly when cuprous ions are copper concentrate was used in a is heap leaching of ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Recovering gold from copper concentrate via the ...

Recovering gold from copper concentrate via the HydroCopper™ process. Olli Hyvärinen 1, Matti Hämäläinen 1, Pertti Lamberg 1 Jussi Liipo 1 JOM volume 56, pages 57–59 (2004)Cite this article. 158 Accesses. 8 Citations. Metrics details. Abstract. HydroCopper™ technology comprises a chloride-leaching method for copper sulfide concentrates and copper production up to semi-products. As ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

US7785395B2 - Method for the recovery of gold from ...

The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro-metallurgically. The concentrate is first subjected to leaching with a concentrated solution of alkali chloride and copper (II) chloride, by means of which the copper minerals and some of the gold in the concentrate are made to dissolve.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Pressure Oxidation Base Metal and Solid-Liquid Recovery ...

No constraints on float concentrate grades or deleterious elements. Cyanide-free process. Comply with government local beneficiation requirements. 99% gold can be produced on site. Kell is a chemical process developed and successfully tested to recovery platinum group metals (“PGM”) and base metals from sulphide float concentrates. It is gaining momentum and could eventually upheave the ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

US4670052A - Process for the recovery of gold from a ...

A process for the recovery of gold from a precious metal bearing sludge concentrate is disclosed. The process comprises the steps of leaching the sludge with hydrochloric acid and hydrogen peroxide to solubilize at least gold, palladium and platinum, removing silver from the leach slurry as insoluble silver chloride and selectively precipitating gold from the leach solution remaining after ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

How to Calculate Grade and Recovery with Examples ...

02/03/2021  The valuable masse in the concentrate or the feed is calculated by multiplying the concentrate mass (or sample masse) by the grade as in the grade formula above (1). Then Rc= 100* (Mcc*Gc’)/ (Mt*Gc) (3) In practice, we take one sample or more from the concentrate, and we prepare it for assays to get the grade, then we calculate the recovery.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Economic Recovery and Upgrade of Metals From Middling and ...

concentrate streams as well as tailings streams to compliment a concentrator flowsheet in a refractory gold and base metals setting. The value proposition is the isolation of a low grade middlings concentrate from the primary circuit or the tailings stream for upgrading to an intermediate product with an equal or higher grade than the primary concentrate to allow blending for sale. This allows ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

The leaching and adsorption behaviour of gold ores

The flotation feed and copper concentrate showed an enhancement in gold extraction due to the activated carbon adsorbing gold that would otherwise have been preg-robbed. However, this mechanism did not explain the behaviour of the pyrite concentrate. For this ore the enhanced extraction was due to a combination of equilibrium and preg-robbing effects. Diagnostic leaching was used to show that ...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

How I can separate gold from copper? - Quora

My answer is to getting the gold free of copper, and it works for any alloy. 1. Raise the surface area/volume. Beat it until it is as thin as possible, or crush it and do your best to make dust/tiny fragments. 2. Put the whole of the sample into a...

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

Gold Recovery Correctly : 12 Steps - Instructables

Gold fingers are typically found on PCI cards, ISA cards, or on Memory sims/dimms/etc. They create the corrosion free connection between the computer and the expansion card. This process can also be used to recover gold from CPU such as Pentium Pro, or Cyrix or older 486 and lower generation chips.

  • Processingmaterial:Bentonite,construction waste,River Stone,coal

  • Capacity:T/H

  • Finished product fineness:0-10mm,10-20mm,20-40mm

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