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Ammonia Used In Making Copper Ore Concentrate

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Copper Ore Processing Methods

Copper Ore Processing Methods

Apr 11, 2017 Copper Ore Processing Methods. The four major steps in the production of marketable copper are mining, concentrating, smelting, and refining. In a few instances, however, leaching takes the place of concentrating, smelting, and refining. At present, although considerable leaching and direct-smelting ores are produced, the bulk of the copper ore ...

Hydrometallurgical Options to Add Value to Copper

Hydrometallurgical Options To Add Value To Copper

1,500,000 tonnes per year of ore 2% Copper. Conventional concentrate production 80% Copper recovery Sell concentrate 96,000 tonnes 25% Copper grade (24,000 tonnes of Copper contained) Assumed Copper Price US$3.00 /lb TC US$50 /t RC US 5c /lb

Iodometric Determination of Copper

Iodometric Determination Of Copper

5. Cool the solution and neutralize the excess acid with 4 M ammonia in the hood. Use a dropper to add the ammonia carefully until a pale blue precipitate of copper(II) hydroxide is obtained. This is somewhat like a titration (Note 2). The amount of ammonia to be added depends on how much acid was used and how much was vaporized during the

Copper Mining and Extraction Sulfide Ores

Copper Mining And Extraction Sulfide Ores

After this stage the enriched ore now contains about 25% copper by mass and is called copper concentrate. It is valuable enough to ship to other plants and other countries for processing. For example China, Germany and Japan are major copper producers that use concentrate from around the world.

The use of geometallurgy in the processing of a complex

The Use Of Geometallurgy In The Processing Of A Complex

The use of geometallurgy in the processing of a complex copper-gold ore deposit R. Aliyev, F. Hedjazi, S.J. Westhead and A.J. Monhemius Anglo Asian Mining plc Baku, Azerbaijan Abstract. The copper-gold ore deposit at Gedabek in western Azerbaijan is described, together with the various processes that are used to extract the gold,

Paper 3 Extended OctoberNovember 2006

Paper 3 Extended Octobernovember 2006

Use 6 An ore of copper is the mineral, chalcopyrite. This is a mixed sulphide of iron and copper. (a) Analysis of a sample of this ore shows that 13.80 g of the ore contained 4.80 g of copper, 4.20 g of iron and the rest sulphur. Complete the table and calculate the empirical formula of

123 Primary Copper Smelting

123 Primary Copper Smelting

Pyrometallurgical techniques use heat to separate copper from copper sulfide ore concentrates. Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 12.3.2 Process Description2-4 Mining produces ores with less than 1 percent copper. Concentration is accomplished at the

Characterization and kinetic study on ammonia leaching

Characterization And Kinetic Study On Ammonia Leaching

Trans. Nonferrous Met. Soc. China 24(2014) 15871595 Characterization and kinetic study on ammonia leaching of complex copper ore A. A. BABA 1, M. K. GHOSH 2, S. R. PRADHAN , D. S. RAO

How to Process Copper Ore Beneficiation Methods and

How To Process Copper Ore Beneficiation Methods And

Oct 28, 2021 Copper ore beneficiation methods. Before the beneficiation of copper ores, crushing and grinding are required. The bulk ores are crushed to about 12cm by a jaw crusher or a cone crusher. Then the crushed materials are sent to the grinding equipment, and the final particle size of the copper ore is reduced to 0.15-0.2mm.

sherrit gordon ammonia leaching of copper BINQ Mining

Sherrit Gordon Ammonia Leaching Of Copper Binq Mining

Dec 08, 2012 Electrochemistry Encyclopedia Extracting metals from sulfide ores. In the 1950s, the Sherritt - Gordon ammonia pressure- leaching process for nickel was introduced. . Leaching of copper from ores has focused mainly on oxide ore types. More detailed.

Treatment of a refractory goldcopper sulfide concentrate

Treatment Of A Refractory Goldcopper Sulfide Concentrate

Jun 01, 2001 TABLE 1 Conditions used in thiosulfate leaching Thiosulfate leaches In situ thiosulfate leach Overall leaching period (hrs) 96 U-p to 96 Sample weight 500 .,_ 500 Total solution volume mL) 1200 1000 Thiosulfate concentration (M) 0.1-0.8 U to 1.2 SOZ rate (mLJmin) - 500 or 200 Ammonia concentration (M) 1.5-4 U to 4 Copper (II) concentration (M ...

Iodometric Determination of Copper

Iodometric Determination Of Copper

Iodometric Determination of Copper.pdf 2. If excess ammonia is added, copper(II) hydroxide redissolves, forming the deep blue copper(II) ammonia complex, Cu(NH 3) 4. If the excess of ammonia is large, a large quantity of ammonium acetate will be produced later this may keep the reaction between copper(II) and iodide ions from being complete.

From Ore to Finished Product Copper

From Ore To Finished Product Copper

Copper - From Beginning to End. Copper is a major metal and an essential element used by man. It is found in ore deposits around the world. It is also the oldest metal known to man and was first discovered and used about 10,000 years ago. And as alloyed in bronze (copper-tin alloy) about 3000 BC, was the first engineering material known to man.

copper mining in kasempa

Copper Mining In Kasempa

ammonia used in making copper ore concentrate copper ore crushing machine in russia sand crusher for sale copper concentrate production copper crusher copper crushing screening washing mining plant world distribution of ire ore copper and uxite flow diagram on copper extraction for sale copper solvent extraction plant stone crusher ...

How copper is made material used processing steps

How Copper Is Made Material Used Processing Steps

Despite this early production, most copper used in the United States was imported from Chile until 1844, when mining of large deposits of high-grade copper ore around Lake Superior began. The development of more efficient processing techniques in the late-1800s allowed the mining of lower-grade copper ores from huge open-pit mines in the ...

Ammonia Gold Dissolution Leaching

Ammonia Gold Dissolution Leaching

Dec 12, 2017 Ammonia and Ammonium sulfate were used as lixiviants. The pH of the solution was adjusted by changing the ratio of ammonium ions (NH4) to free ammonia (NH3). The pH of the solution was measured at room temperature and unless otherwise mentioned, this value was kept constant at 10.2. Sodium sulfate was used as the supporting electrolyte.

Metallurgy The Canadian Encyclopedia

Metallurgy The Canadian Encyclopedia

Feb 07, 2006 In the leaching process, developed by Sherritt Gordon Ltd. and used at Fort Saskatchewan, Alberta, the sulphide concentrate is mixed with an ammonia-leaching solution and oxygen, with compressed air at 689758 kilopascals (kPa) and heated to 80C. The nickel, copper and cobalt present in the concentrate form soluble ammonia complexes. The ...

The selective leaching of copper from a goldcopper

The Selective Leaching Of Copper From A Goldcopper

consume about 30 kg/t NaCN for every 1% of reactive copper present, making conventional cyanidation of coppergold ores or concentrates uneconomic (Muir, 2011). According to La Brooy (1992), the oxidised coppergold ores are selectively mined to minimise the presence of re-active copper to below 0.5% and otherwise sulphidic coppergold ores

etermination of copper in copper ores

Etermination Of Copper In Copper Ores

was adjusted with 0- 5 M ammonia until the blue color of the copper pyrocatechol violet complex just appears. 2 gm sodium acetate was added and the solution was titrated against 0.05 M EDTA solution to a sharp yellowish-green end point. Determination of copper in ores and concentrates 2 gnu copper ore or 05 gm concentrate was weighed into

Ammonia Pressure Leach Process for Recovering Nickel

Ammonia Pressure Leach Process For Recovering Nickel

Ammonia Pressure Leach Process for Recovering Nickel, Copper, Nickel and Cobalt From Sulphide Concentrate ... resulting in the establishment of a proven reserve of over 14,000,000 tons of ore containing 1.223 per cent nickel, 0.618 per cent copper, and additional cobalt values. ... nickel production.Preliminary investigation showed that the ore ...

Acid leaching of oxidesulfide copper ore prior the

Acid Leaching Of Oxidesulfide Copper Ore Prior The

hydrochloric and nitric acid, as well as the ammonia are usually used as the leaching agents in a various copper ore leaching processes 212. Copper oxides easily react with sulphuric acid solutions at the room tempe-rature producing Cu2 in the aqueous phase. Energy consumption can also become an important factor of

CN1544663A Method for preparing copper sulfate using

Cn1544663a Method For Preparing Copper Sulfate Using

The invention discloses a method to prepare copper sulphate by copper concentrate, adding built additive to the copper concentrate powder, to make the iron in the copper concentrate and the additive form a basic iron sulphate double salt deposit difficult to dissolve in dilute sulphuric acid solution, when leaching copper sulphate of copper calcining, the deposit is eliminated with the residue ...

Ammoniacal thiosulfate leaching of pressure oxidized

Ammoniacal Thiosulfate Leaching Of Pressure Oxidized

Jan 01, 2015 Ammoniacal thiosulfate leaching of pressure oxidized sulfide gold concentrate received from a gold mine is studied. The main chemical composition of the concentrate was Au 32 g/t, Ag 12 g/t, Fe 59%, S 21% and As 19%.The experimental variables studied were ammonia concentration, thiosulfate concentration, copper concentration, and temperature.

Investigation of ammonia autoclave leaching of silver and

Investigation Of Ammonia Autoclave Leaching Of Silver And

Nowadays, copper industry consists mostly of pyrometallurgical technologies (not more than 1015% of hydrometallurgy are included). Exhaustion of rich copper deposits led to the necessity of expansion of raw material base due to the involvement of poor and off-balance ores in production, which, in turn, led to obtaining of ill-conditioned concentrates, unsuitable for profitable use in ...

How To Make Copper Concentrate

How To Make Copper Concentrate

How To Make Copper Acetate from Copper - ThoughtCo. Sep 03, 2019 Make Copper Sulfate Copper sulfate can be used to grow bright blue crystals. Make Sodium Acetate (Hot Ice) Sodium acetate is produced from the reaction between baking soda and vinegar. Make Ammonium Nitrate Make ammonium nitrate by reacting nitric acid and ammonia.

Ores and Concentrates Arche

Ores And Concentrates Arche

Ores and Concentrates An industry approach to EU Hazard Classification 1 The extraction and processing of mineral ores to create concentrates is the primary step in the life cycle of minerals and metals, and management of the

Concentrate Nickel Processing

Concentrate Nickel Processing

Nickel concentrates may be leached with sulfuric acid or ammonia, or they may be dried and smelted in flash and bath processes, as is the case with copper. ... Froth flotation cells used to concentrate copper and nickel sulfide ... Read more. Nickel concentrate processing - Crusher Unit ... Nickel Ore And Concentrate Difference - mineral ...

Common Basic Formulas for Mineral Processing

Common Basic Formulas For Mineral Processing

Mar 20, 2016 Formula (5) is used in making tabulations for mill use. As used in these formulas the specific gravity of the ore is obtained simply by weighing a liter of mill pulp, then drying and weighing the ore. With these two weights formula (2) may be used to obtain K, and then formula (1) to convert to S, the specific gravity.

Copper Ore Processing Plant Equipment For Sale Prominer

Copper Ore Processing Plant Equipment For Sale Prominer

Copper Processing Plant description There are mainly three types of copper ore sulfide type copper ore, oxide type copper ore and mixed ore. Based on abundant experiences on copper mining project, Prominer supplies customized solution for different types of copper ore. General processing technologies for copper ore are summarized as below II.


Scielo Brasil Leaching Of Malachite Ore In

Besides, ammonia forms stable complexes with copper ions, and this can lead to an increase in the dissolution rate of copper from ore. Thus, ammonia allows for selective extraction of the copper from ore, leaving the undesired components in the residue (Blanco et al., 1999 Blanco, L. J. L., Zapata, V. F. M., Garcia, D. D. J., Statistical ...

Environmental Guidelines for Nickel Smelting and Refining

Environmental Guidelines For Nickel Smelting And Refining

used although sulfuric acid solutions are used more often. Waste Characteristics Air emissions Sulfur dioxide (SO2) is a major air pollutant emitted in the roasting, smelting and converting of sulfide ores (nickel sulfide concentrates contain 6-20% nickel and up to


Investigation Of The Use Of Ammonium Acetate

In acid leaching of oxidized copper ores, the im-purities passing from ore to solution cause some problems in further processing of the leaching solu-tion, such as electrowinning of copper 19. For these reasons, basic or weakly acidic lixiviants containing ammonia have been also used for the leaching of the oxidized copper ores 5, 19-24.

Effect of Preliminary Alkali Desilication on Ammonia

Effect Of Preliminary Alkali Desilication On Ammonia

Ammonia leaching is a promising method for processing low-grade copper ores, especially those containing large amounts of oxidized copper. In this paper, we study the effect of Si-containing minerals on the kinetics of Cu and Ag leaching from low-grade copper concentrates. The results of experiments on the pressure leaching of the initial copper concentrate in an ammonium/ammonium-carbonate ...

Energy and Environmental Profile of the US Mining

Energy And Environmental Profile Of The Us Mining

Copper processing or pyrometallurgical processes employ high-temperature chemical reactions to extract copper from its ores and concentrates. Generally, these processes are used with copper sulfides and, in some cases, high-grade oxides. Depending on the copper mineral and the type of equipment, pyrometallurgical recovery may take as many

Copper Mining and Extraction Sulfide Ores

Copper Mining And Extraction Sulfide Ores

Place these products in the extraction process in ascending order of copper content. Use the flow chart as a guide Matte Ore Cathode copper Blister Anode copper Copper concentrate Fire refined copper Use a periodic table to find the atomic masses of the elements in cuprite and chalcocite. Then work out the percentage of copper in each mineral.