ferric chloride leaching of copper from chalcopyrite

Leaching of Primary Copper Sulfide Ore in Chloride Ferrous,Many chalcopyrite leaching studies have been performed with leachants such as ferric sulfate [4–7], ferric chloride [7,8], sodium nitrate sulfuric acid [9], hydrochloric acid [10], and sodium chloride sulfuric acid [11], among others [10] The slow copper from chalcopyrite

(PDF) Copper Leaching from Nanoparticles of

Although the leaching efficiency of chalcopyrite was very low at ambient temperature, the percentages of copper dissolved in the presence of hydrogen peroxide (H2O2) and ferric sulfate (Fe2(SO4)3

The leaching of chalcopyrite with ferric chloride

A comparative study of electrochemical leaching and chemical leaching of chalcopyrite was done to elucidate the leaching mechanism of chalcopyrite with FeCl3. The leaching rate of chalcopyrite exhibits a half order dependency on the FeCl3 concentration, whereas it is independent of the FeCl2 concentration. The mixed potential of chalcopyrite exhibits a 72 mV · decade−1 dependency upon FeCl3

The Leaching of Chalcopyrite in Ferric Chloride and

2018-6-10  Ferric chloride is a more effective reagent and this is attributable to the morphological characteristics of chalcopyrite leaching. The kinetics with both leachant solutions were found to be linear over an extended period, followed by an acceleration stage, as a

Chalcopyrite Leaching in Acidic Chloride Solution without

2019-9-30  Abstract: Chalcopyrite leaching in acidic chloride solution with-out sulphates. The effect of dissolved oxygen and ferrous/ferric/cu-pric ions in solution on the leaching behavior of chalcopyrite and the phenomenology of the passivating layer formation on the chalcopyrite surface in an aqueous acidic chlorinated medium with dissolved oxy-

ferric chloride leaching of copper from chalcopyrite

Ferric chloride leaching of mechanically activated ,Read "Ferric chloride leaching of mechanically activated chalcopyrite, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertipsCHALCOPYRITE DISSOLUTION IN CUPRIC CHLORIDE ,Chloride solutions have become of great interest, having high leaching

Cupric and Chloride Ions: Leaching of Chalcopyrite

In this paper, the effect of the cupric and chloride ions concentrations on copper dissolution from chalcopyrite concentrate was studied in acidified media. Variables included three different concentrations of Cu2+ (0.5, 1.5, and 2.5 g L−1), four different concentrations of Cl− (0, 5, 7, and 10 g L−1), two different pH values of 1 and 2, and a constant temperature of 60 °C. Results

Leaching of Primary Copper Sulfide Ore in Chloride

2018-7-25  Many chalcopyrite leaching studies have been performed with leachants such as ferric sulfate [4–7], ferric chloride [7,8], sodium nitrate-sulfuric acid [9], hydrochloric acid [10], and sodium chloride-sulfuric acid [11], among others [10]. The slow copper from chalcopyrite dissolution has been attributed to the formation of a

Kinetic Study of Chalcopyrite Leaching with Iron (III

2021-1-20  Ferric oxidant have proved to be the most efficient oxidant for leaching chalcopyrite under oxidizing conditions in the presence of chloride, several kinetical studies were performed looking to identify the response under specific conditions with industrial implementation porpoises (Table 1), seems to be a consensus on the determination of the

Chalcopyrite Leaching in Acidic Chloride Solution without

2019-9-30  Abstract: Chalcopyrite leaching in acidic chloride solution with-out sulphates. The effect of dissolved oxygen and ferrous/ferric/cu-pric ions in solution on the leaching behavior of chalcopyrite and the phenomenology of the passivating layer formation on the chalcopyrite surface in an aqueous acidic chlorinated medium with dissolved oxy-

Solvometallurgical process for extraction of copper from

for copper extraction from chalcopyrite, which can be applied to low grade copper ores due to the lower operating costs.2 Many works have been reported for hydrometallurgical leaching of chalcopyrite. The most often used lixiviants are acidic chloride media, acidic sulfate media and basic ammonia solutions, together with various oxidizing

Chalcopyrite Leaching Metallurgist & Mineral

2021-2-24  Leaching Chalcopyrite is the holy grail for hydrometallurgists (Leachers), difficult to leach as the sulfur forms a layer over the mineral and makes the leaching slow. Having said that, it is not 100% not leachable, not unusual for ore dumps (low grade) containing chalcopyrite to be placed under leach but report low recovery +/-30% TCu over several years and the rate is around 0.5-1% per month

Improving of copper extraction from chalcopyrite by using

BAFGHİ M S H, EMAMİ A H, ZAKERİ A. Effect of specific surface area of a mechanically activated chalcopyrite on its rate of leaching in sulfuric acid-ferric sulfate media [J]. Metallurgical and Materials Transaction B, 2013, 44(5): 1166–1172. DOI: 10.1007 Article

Solvometallurgical process for extraction of copper

Extraction of copper from sufidic ores, either by pyrometallurgy or hydrometallurgy, has various limitations. In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by using an organic lixiviant (FeCl 3 as oxidizing agent and ethylene glycol (EG) as organic solvent).

Leaching of Copper Sulphides SAIMM

2016-6-8  oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy on the choice of processing technology is discussed as well as some of the unit processes used. Additionally, possible benefits that a hydrometallurgical process may offer over an bornite and chalcopyrite (Cu 5 FeS 4 and CuFeS 2, respectively) as well

Recover Copper by Leaching Sulfidation-Partitioned

2020-5-17  Ferric Chloride Leaching Because of the demonstrated efficacy of FeCl3 as a leachant for CuFeS2, the most stable of the copper sulfides (because of its face-centered tetragonal structure), FeCl3 was a likely candidate to selectively remove Cu from the simple sulfides produced as reaction products during the sulfidization of CuFeS2 concentrate.

extraction of copper from chalcopyrite

US3962402A. A method is described for the oxidation-leaching of chalcopyrite concentrates at high temperatures and pressures for the extraction of copper values as copper sulfate in which temperatures are maintained between about 425 176 and 450 176 F oxygen partial pressures of between about 50 and 200 psi are provided and levels of acidity are permitted to increase above about 50 grams of H

(PDF) Leaching of chalcopyrite with ferric ion. Part I

Chronologically, Traill and McClelland (1926) were the first to Dutrizac (1989) established that during chalcopyrite leaching with study the dissolution of chalcopyrite with concentrated ferric chloride ferric sulphate at 95 °C the sulphide sulphur was practically all oxidized (70 g/L) at high temperature (95 °C); they obtained a copper

A Review on Novel Techniques for Chalcopyrite Ore

2012-1-1  Al-Harahsheh (2008) used ferric chloride leaching of copper from chalcopyrite. The effect of stirring speed and temperature on chalcopyrite leaching were investigated. Agitation was found to have a negative effect on cupric ion, the fact that cupric complexes are formed during the leaching process where the cupric ion is considered as a string

Chalcopyrite Leaching in Acidic Chloride Solution without

2019-9-30  Abstract: Chalcopyrite leaching in acidic chloride solution with-out sulphates. The effect of dissolved oxygen and ferrous/ferric/cu-pric ions in solution on the leaching behavior of chalcopyrite and the phenomenology of the passivating layer formation on the chalcopyrite surface in an aqueous acidic chlorinated medium with dissolved oxy-

Kinetic Study of Chalcopyrite Leaching with Iron (III

2021-1-20  Ferric oxidant have proved to be the most efficient oxidant for leaching chalcopyrite under oxidizing conditions in the presence of chloride, several kinetical studies were performed looking to identify the response under specific conditions with industrial implementation porpoises (Table 1), seems to be a consensus on the determination of the

Redox potential dependence of chalcopyrite leaching in

2017-9-20  leaching kinetics of chalcopyrite (CuFeS 2), which is a major copper mineral in copper concentrates. Chalcopyrite leaching rate is slower than other copper sulfide minerals such as covellite (CuS), bornite (Cu 5FeS 4), and chalcocite (Cu 2S) (Nicol et al., 2010). In acid solutions, chalcopyrite is oxidized by ferric ions: CuFeS 2 + 4 Fe

Cu Leaching Using Regenerated Ferric Sulphate SGS

2015-12-16  copper sulphide minerals are normally less refractory than chalcopyrite and as such appear more suitable to hydrometallurgical processes. Acidified ferric sulphate is without a doubt the most common lixiviant for . secondary copper minerals (1,2), and, even under autoclave conditions (3), it is believed that oxidation by ferric remains

la concentration de chalcopyrite

Ferric chloride leaching of chalcopyrite: Synergetic effect menagee de la chalcopyrite en during the ferric-chloride leaching of chalcopyrite. BIOLEACHING OF COPPER SULPHIDE FLOTATION composición de la solución chalcopyrite being the main copper sulphide mineral,

Leaching of Copper Sulphides SAIMM

2016-6-8  oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy on the choice of processing technology is discussed as well as some of the unit processes used. Additionally, possible benefits that a hydrometallurgical process may offer over an bornite and chalcopyrite (Cu 5 FeS 4 and CuFeS 2, respectively) as well