copper ore gold treatment

copper ore gold treatment

Jan 01, 2016 The treatment of copper–gold ores by ammonium thiosulfate leaching. Hydrometallurgy, 66 (2002), pp. 23-26. Google Scholar. Muir, 2011. D.M. Muir. A review of the selective leaching of gold from oxidized copper–gold ores with ammonia–cyanide and new insights for plant control and operation.

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  • Treatment of copper rich gold ore by cyanide leaching

    Treatment of copper rich gold ore by cyanide leaching

    The treatment of a copper sulphide-bearing gold ore by direct cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching was investigated. Dissolution behaviour of gold and copper in these leaching systems was demonstrated.

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  • Pretreatment Process on Refractory Gold Ores with As

    Pretreatment Process on Refractory Gold Ores with As

    The technology started to process ores in the 1950 s, and at first leached to recovery copper from the low-grade copper ore or marginal copper ore. In the mid-1980 s, the first commercial plant which applied bacterial oxidation to pretreat refractory gold ores was built in South Africa.

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  • MINERAL PRODUCT PRICING STUDY

    MINERAL PRODUCT PRICING STUDY

    process is usually able to recover 85 to 95 percent of the copper in the ore. The dried concentrate contains approximately 20 -30 percent copper by mass, 30 per cent iron, 30 per cent sulphur, with the remainder including small amounts of gold, silver, and unwanted elements such as arsenic and mercury.

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  • Photos of gold ores quartz telluride gold ore and gold

    Photos of gold ores quartz telluride gold ore and gold

    Dry ore is the term often used. The second class of gold ores is auriferous copper ores. These are widely distributed throughout the United States and much of the chalcopyrite is gold bearing. These auriferous copper ores are especially abundant in Colorado, Utah, Montana and British Columbia.

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  • Studies on Hydrometallurgical Treatment of Oxydized Gold

    Studies on Hydrometallurgical Treatment of Oxydized Gold

    Inherent problems of oxidized gold-bearing copper ores processing and a comparison of hydrometallurgical methods, applied for such materials, are discussed in this article. Studies on sulfuric acid and cyanide leaching have been carried out, using the following sample of oxidized ore from one of the copper deposits (Kyrgyzstan), %: 15 Mg O, 45.6 SiO2, 0.1 S, 20 Ca O, 12.1 Fe2O3, 0.86 Cu, 1.78 ...

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  • Copper Ore an overview ScienceDirect Topics

    Copper Ore an overview ScienceDirect Topics

    D. Lunt, T. Weeks, in Gold Ore Processing (Second Edition), 2016. 4.2 Treatment of High-Copper Ores. Adams (1999) has proposed a classification of gold– copper ores according to the relative concentrations of the two metals. Ores with high copper values are invariably exploited via flotation and smelting with gold recovered in a refinery.

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  • PDF Cyanidation of Refractory Gold Ores A Review

    PDF Cyanidation of Refractory Gold Ores A Review

    Whilst these dewatering challenges persist, the ongoing rapid decline in value metal (e.g., gold and copper) ore grades, coupled with increasing ore complexity, the processing of ores at higher ...

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  • PDF Treatment of A Copper Rich Gold Ore by Cyanide

    PDF Treatment of A Copper Rich Gold Ore by Cyanide

    Trans. Nonferrous Met. Soc. China 25(2015) 597−607 Treatment of copper-rich gold ore by cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching A. D. BAS, E. KOC, Y. E. YAZICI, H. DEVECI Hydromet-B&PM Group, Division of Mineral & Coal Processing, Department of Mining Engineering, Karadeniz Technical University, Trabzon 61080, Turkey Received 28 March …

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  • Extract copper and gold from low grade ores FLSmidth

    Extract copper and gold from low grade ores FLSmidth

    Extract copper and gold from low-grade ores more efficiently. Ore deposits are becoming increasingly complex to treat and grades continue to deteriorate in known reserves. For instance, approximately 15-20 per cent of the world’s current gold production involves refractory ores that must be pre-treated prior to downstream recovery by cyanidation.

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  • Oxidative pre treatment in thiosulphate leaching of

    Oxidative pre treatment in thiosulphate leaching of

    Feb 19, 2010 The sulphide ore contained a small amount of copper, and the copper minerals partially dissolved in the pre-treatment to release copper species in the solution. The increase in the oxidative cupric tetra-ammine concentration in solution was likely another reason for the higher mixed potential after the pre-treatment.

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  • The Application of Diagnostic Leaching to Copper and Gold Ores

    The Application of Diagnostic Leaching to Copper and Gold Ores

    The primary purpose of this review paper is to present the hydrometallurgical processes that currently exist in the mining industry for the treatment of silver, copper, and gold ores, as well as ...

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  • Review of gold extraction from ores ScienceDirect

    Review of gold extraction from ores ScienceDirect

    Oct 01, 1994 COMPLEX ORES CYANIDE CONSUMERS Copper and reactive suIphides OXYG E N CONSUMERS Reactive aulphldea PREG- ROBBING Carbonaceous, eulphidee and clays Fig.4 Complex ore classification 1218 S.R. LA BROOy et al. Cyanide Consuming Complex Ores The occurrence of gold in electrum can lead to slower gold leaching kinetics and increased cyanide consumption.

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  • Iron oxide copper gold ore deposits Wikipedia

    Iron oxide copper gold ore deposits Wikipedia

    Iron oxide copper gold ore deposits (IOCG) are important and highly valuable concentrations of copper, gold and uranium ores hosted within iron oxide dominant gangue assemblages which share a common genetic origin.. These ore bodies range from around 10 million to 4,000 million tonnes of contained ore, and have a grade of between 0.2% and 5% copper, with gold contents ranging from …

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  • Copper Geoscience Australia

    Copper Geoscience Australia

    Depending on the type of copper bearing minerals in the ore and the treatment processes used, the concentrate typically contains between 25 and 30% copper, however may be as high as approximately 60% copper. The concentrate is then processed in a smelter. Processing

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  • A Review of the Recovery of Gold and Silver From Copper

    A Review of the Recovery of Gold and Silver From Copper

    The. ore from both mines is processed through an 8,500 ton per day. flotation concentrator. Only 25-40% of gold and 60-6 5% of the silver. are recovered into the copper concentrate. Gold and ...

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  • Method of gold extraction from sulphide gold bearing ores

    Method of gold extraction from sulphide gold bearing ores

    On the Treatment of the Gold Ores/August 21-24, 2005, Calgary, Canada /.P.353-372). The method for extracting precious metals from difficult ores, which carry out Vyselki is the use of noble metals with a solution of ammonium thiosulfate in the presence of copper.

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  • Chris Ralph's Gold Prospecting Encyclopedia Information

    Chris Ralph's Gold Prospecting Encyclopedia Information

    On the pages I have images of native gold and platinum plus a variety of different ores for gold, silver and copper, plus info about these ores and where they are found. Mark Twain's Prospecting Adventures Young Sam Clemens (later to be known as Mark Twain) came to Nevada and contracted a very bad case of Gold and Silver Fever .

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  • PDF An Overview of Treatment of Copper gold Ores

    PDF An Overview of Treatment of Copper gold Ores

    Treatment of A Copper-Rich Gold Ore by Cyanide Leaching, Ammonia Pretreatment and Ammoniacal Cyanide Leaching, T ransactions of Nonferrous Metals Society of China , 25, 2, 597- 607.

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  • Eliminating Copper from Gold Ore

    Eliminating Copper from Gold Ore

    Oct 11, 2015 The Hunt method-calls for the direct treatment of the ore with a solution of potassium cyanide to which ammonium hydroxide has been added. The gold is thus extracted together with some copper, and the metals are recovered by electrolytic precipitation, the gold, silver and copper falling to the bottom of the vats as a sludge.

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  • PDF Treatment of a Copper Rich Gold Ore by Ammonia

    PDF Treatment of a Copper Rich Gold Ore by Ammonia

    Alternative processes for the treatment of copper bearing gold ores are flotation (Bulatovic, 1997 Forrest et al, 2001), alternative lixivia nts such as th iosulphate (Bas et al, 2011), alkaline or...

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  • The metallurgic treatment of an ore for gold silver lead

    The metallurgic treatment of an ore for gold silver lead

    1 Required-- a discussion of the metallurgy treatment of an ore for gold, silver, lead, and copper, having about the following composition PbS.....70.00 per cent

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  • CN100485059C Method for recovering gold from sulphide

    CN100485059C Method for recovering gold from sulphide

    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.

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  • Recovering Gold from Copper Concentrate via the

    Recovering Gold from Copper Concentrate via the

    Hydrometallurgical production of copper offers lower investment costs and treatment of complex copper ores from which profi table copper concentrates cannot be fl oated due to the excess of harmful elements such as arsenic. The HydroCopper process also enables effi cient recovery of silver and gold, which is important because gold is often a valuable element in chalcopyritic copper concentrates.

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