Tel:+86-21-58386189, 58386176

copper sulfide bearing gold concentration

Copper extraction from gold bearing copper(II) sulphide

Copper extraction from gold bearing copper(II) sulphide without thermal process to obtain gold concentrate. Copper ion concentration was found below the detection limit of the AAS. After the electrolysis 0.25 ± 0.02 g of copper was deposited on the copper hode.

Get Price

Recovery of Gold and Silver and Removal of Copper, Zinc

the sulfide component has been shown to have a strong impact on the gold leaching kinetics [5]. The leac[3] hing behavior of gold in the presence of sulfide minerals depended strongly on both the solubility of the sulfides and the oxygen concentration in the solution [5]. Based on the experiments observation, it is postulated that sul

Get Price

Bioleaching of copper ore flotation concentrates

The main objective of this work was to evaluate a bioleaching process from the treatment of two concentrates, (i) a copper gold bearing concentrate and (ii) an ordinary copper flotation concentrate, using mesophilic bacteria. The special goldbearing copper flotation concentrate was

Get Price

GOLD AND SILVER EPA Archives

Gold occurs mainly as native metal, alloyed with silver and/or other metals, and as tellurides. A naturally occurring alloy of gold and silver is known as electrum. Other gold minerals are rare. Gold is commonly associated with the sulfides of antimony, arsenic, copper,

Get Price

Preliminary Model of Porphyry Copper Deposits USGS

2. Major and minor axes of extent of altered rock, orebodies, and sulfidebearing rock in kilometers together with the total area of altered rock, ore, and and coppergold subtypes that are sometimes distinguished by economic geologists (for example, Sillitoe, 2000). A brief discussion of the porphyry copper subtypes is Porphyry copper

Get Price

THE TREATMENT OF ARSENIC BEARING ORES,

THE TREATMENT OF ARSENIC BEARING ORES, CONCENTRATES AND MATERIALS WITH ALKALINE SULFIDE HYDROMETALLURGY. C. G. Anderson . The Center for Advanced Mineral and Metallurgical Processing, Montana Tech

Get Price

Ore genesis Wikipedia

Sulfide phases only form in ultramafic magmas when the magma reaches sulfur saturation. This is generally thought to be nearly impossible by pure fractional crystallisation, so other processes are usually required in ore genesis models to explain sulfur saturation.

Get Price

Catalytic Oxidation Pretreatment of SulfideRich Arsenic

This paper summarizes the result of experiment that was fourced on investigation of oxidation pretreatment on sulfide mineral for leaching of refractory gold concentrate by hydrogen peroxide in sulfuric acid. For a viable option, extraction rate of Fe, Cu was low, but extraction rate of arsenic reached nearly . As the result of oxidation, elemental sulfur was not produced.

Get Price

gold sulfide ore processing autospec.co.za

The sulfide ore contains gold, silver, copper and zinc and will be processed through a multi stage flotation circuit producing two marketable The IPJ, a classic pre concentration device, is effective in gangue rejection prior to further processing of valuable gold bearing material. Copper gold sulfide ore flotation process be addressed

Get Price

How and why do we produce gold and copper concentrates

for its minerals. It is important to note that our gold/copper/silver concentrates are already a highly processed and beneficiated product. Whilst the smelters do charge to process our concentrate, on average for the contract terms that we have agreed with the overseas smelters, we receive 97% of the total value of gold, silver and copper.

Get Price

Preliminary Model of Porphyry Copper Deposits USGS

2. Major and minor axes of extent of altered rock, orebodies, and sulfidebearing rock in kilometers together with the total area of altered rock, ore, and and coppergold subtypes that are sometimes distinguished by economic geologists (for example, Sillitoe, 2000). A brief discussion of the porphyry copper subtypes is Porphyry copper

Get Price

sulfuric acid copper leaching YouTube

Sep 02, 2016 · sulfuric acid copper leaching Method of leaching copper sulfide ore with A method of leaching copper from a copper sulfide ore, characterized by comprising using, as a

Get Price

Ore deposits formed by oxidation and supergene enrichment

The second circumstance involves mineral deposits containing sulfide minerals, especially copper sulfides, that are subjected to weathering under desert conditions. Sulfide minerals are oxidized at the surface and produce sulfuric acid, and acidified rainwater then carries the copper, as copper sulfate, down to the water table.

Get Price

Copper Mining and Processing: Processing of Copper Ores

Copper processing is a complied process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called hodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different

Get Price

Copper(II) sulfide? ScienceDirect

1. Introduction. A recent technical note in this journal addressed copper extraction from gold bearing "copper(II) sulphide" concentrates (Ayata and Yildiran, 2005).It is unusual for CuS (covellite) to be considered as an entirely Cu(II) sulfide, but slightly more common for some of the Cu in the mineral to be regarded as Cu(II) and some as Cu(I) (e.g. Todd et al., 2003).

Get Price

Method for concentration of gold in copper sulfide

Nov 08, 2011 · BACKGROUND OF THE INVENTION. 1. Field of the Invention. The present invention relates to a method for concentration and recovery of gold in a leach residue obtained by leaching copper from a goldbearing copper sulfide mineral in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral.

Get Price

Environmental benefits of the CESL Process for the

the copper sulfide minerals and maximize arsenic precipitation. Depending upon the slurry pH Cyanidebearing solutions are recycled. Copper and cyanide are recovered from a coppergold concentrates using the CESL Process at a planned custom refinery in Peru was compared to two baseline scenarios that represent businessasusual in the

Get Price

gold bearing ore: precipitate sodium sulfide

Download as PDF Scientific Research Publishing. Abstract. Cyanidation is the main process for gold and silver recovery from its ores. This technology is based on inducing nucleated precipitation of copper and silver in a serpentine reactor, using sodium sulfide as the precipitator, and sulfuric acid for pH control. .. when leaching sulphidebearing ores, insoluble CuSCN.

Get Price

Effect of Pretreatment on Leaching Primary Copper Sulfide

Bas et al. [19] investigated the effect of an ammonia pretreatment before leaching copper sulfidebearing gold ore to increase gold extraction at low cyanide concentrations. Gold extraction increased from 6.7% (leaching without pretreatment) to 99.8% with pretreatment.

Get Price

The gold fills cracks and spaces in the quartz as the

Treatment of copperrich gold ore by cyanide leaching, ammonia, copper sulfide bearing gold concentration,Abstract: The treatment of a copper sulphidebearing gold ore by direct cyanide, Increasing the concentration of NH3 improves the selectivity and extent of gold.Patent WO2012053915A1 A process of gold and copper recovery,Apr 26, 2012, 1) A process for gold and copper

Get Price

Copper Ore Types: Sulfides vs. Oxides Investing News Network

Copper Ore Types: Sulfides vs. Oxides. Different methods are used to process copper sulfide ores depending on the concentration of copper within the ore — higherconcentrated ores can be

Get Price

Copper Smelting IFC

Recovery of copper metal and alloys from copperbearing scrap metal and smelting residues requires preparation of the scrap (e.g., removal of insulation) prior to feeding into the primary process. Electric arc furnaces using scrap as feed are also common. Waste Characteristics The principal air

Get Price

Copper Mining and Processing: Processing of Copper Ores

Copper processing is a complied process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called hodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different

Get Price

Copper Mining and Processing: Resources and Glossary

mineral resource: A concentration or deposit of minerals in the earth's crust which is potentially valuable. native copper: An uncombined (pure) form of copper which occurs as a natural mineral. Copper is one of the few metallic elements to occur in native form, although it most commonly occurs in oxidized states and mixed with other elements.

Get Price

Bioleaching of copper ore flotation concentrates

The main objective of this work was to evaluate a bioleaching process from the treatment of two concentrates, (i) a copper gold bearing concentrate and (ii) an ordinary copper flotation concentrate, using mesophilic bacteria. The special goldbearing copper flotation concentrate was

Get Price

A Method for Leaching or Dissolving Gold from Ores or

leaching step to produce a goldbearing solution as an intermediate product while the recycling of secondary gold from electronic and precious metal scrap is based on the selective and fast dissolution of the precious metal. Therefore, A Method for Leaching or Dissolving Gold from Ores or

Get Price

Copper(II) sulfide? ScienceDirect

1. Introduction. A recent technical note in this journal addressed copper extraction from gold bearing "copper(II) sulphide" concentrates (Ayata and Yildiran, 2005).It is unusual for CuS (covellite) to be considered as an entirely Cu(II) sulfide, but slightly more common for some of the Cu in the mineral to be regarded as Cu(II) and some as Cu(I) (e.g. Todd et al., 2003).

Get Price

Gold in Minerals and the Composition of Native Gold

GOLD IN MINERALS AND THE COMPOSITION OF NATIVE GOLD By ROBERT S. JONES and MICHAEL FLEISCHER ABSTRACT Gold occurs in nature mainly as the metal and as various alloys. It forms complete series of solid solu­ tions with silver, copper, nickel, palladium, and

Get Price

Copper Sulfide Bearing Gold Concentration iresbiblioteca.it

Nov 08, 2011· Method for concentration of gold in copper sulfide minerals a goldbearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and

Get Price

Effect of Pretreatment on Leaching Primary Copper Sulfide

The aim of this study was to improve the dissolution of copper sulfide ore composed mainly of chalcopyrite (1.21 wt %) and bornite (0.54 wt %) using a pretreatment before leaching. The effect of the pretreatment on copper sulfide dissolution was investigated using different types of leaching. Three sets of experimental tests were performed (flask, reactor and minicolumn).

Get Price

Copper sulfide nanoparticles as a photothermal switch for

Jan 15, 2018 · Here, Tang and colleagues use copper sulfide nanoparticles as a photothermal switch to locally and temporally activate TRPV1 in vascular smooth muscle cells

Get Price

Process for removing and recovering copper, silver and

Mar 02, 1999 · Ores containing copper, zinc, silver in the form of sulfides are treated by a solution of sulfurated sulfite ions and ammonium ions in order to remove most of the metals from the sulfide ores. This treatment renders the resulting gold bearing ores much more amenable to cyanide extraction.

Get Price

THE ALKALINE SULFIDE HYDROMETALLURGICAL

2.2 Selective Recovery of Gold from Alkaline Sulfide Solutions In the example cited above, it is essential in that any gold leached in the alkaline sulfide solutions be recovered. As shown in Figure 3, gold is soluble in the alkaline sulfide system. Gold lixiviation is the result of leaching by polysulfides and sulfides as shown in equation 8.

Get Price

Effect of Pretreatment on Leaching Primary Copper Sulfide

Bas et al. [19] investigated the effect of an ammonia pretreatment before leaching copper sulfidebearing gold ore to increase gold extraction at low cyanide concentrations. Gold extraction increased from 6.7% (leaching without pretreatment) to 99.8% with pretreatment.

Get Price

Çöpler Oxide Ore alacergold.com

The Sulfide Plant is operating and producing gold and provides the next stage of growth for Alacer. Geology. Çöpler is an epithermal goldsilvercopper deposit, centered on a composite diorite to monzonite porphyry stock that has intruded into the surrounding metasediments and limestonemarbles. The resulting goldbearing solution is

Get Price