sulfuric acid copper leaching

Sulfuric acid leaching for capturing value from copper
Apr 01, 2019Sulfuric acid leaching of copper rich slag with the optimized parameters can provide a copper rich process solution with iron as the main impurity metal. The solution can provide an attractive feed for integration into the industrial primary copper production with acceptable low Ni, As and Pb levels (43.6 g/L Cu, 9.4 g/L Fe, 0.3 g/L Ni, 0.1 g/L
Contact Us
Copper recovery using leach/solvent extraction
Copper recoveries of 85% are being reported at several oxide heap operations and many chalcocite heap leaches report 75% to 80% copper recovery. Sulphuric acid leach solutions treated successfully by copper SX range from <1 g/ lCu up to about 35 g/ Cu with a pH range of ~0.8 to ~2.5.
Contact Us
Sulfuric Acid Leaching of Smelter Matte
MATERIALS AND EQUIPMENTREAGENTSPROCEDURERESULTSDISCUSSIONEFFECTS OF OPERATING PARAMETERSCONCLUSIONSMattes were obtained from the St. Joseph Mineral Corp. lead smelter at Herculaneum, Mo. and the Amax Lead Co. of Missouri lead smelter at Boss, Mo. The St. Joe lead smelter produces three grades of matte, a low and a high grade nickel matte and a copper matte, which makes up the greatest portion of the mattes. The Amax lead smelter produced previously a copper matte and a speiss (high nickel and arsenic), but recently has started producing a copper matte with more lead, nickel, and arsenic,Contact Us
LEACHING KINETICS OF COPPER FROM CHALCOPYRITE
Leaching kinetics of copper from chalcopyrite concentrate in nitrous sulfuric acid 411. The leaching of chalcopyrite concentrate with a particle size of 15 m in nitrite containing solutions had a high reaction rate. Over 98% of the copper was dissolved in 120 min at 120 C.
Contact Us
Sulfuric acid a dangerous mining aid NRS Import DW
Sulfuric acid a dangerous mining aid. According to the national water authority Conagua, some 40,000 cubic meters (1.4 million cubic feet) of leached copper in sulfuric acid was spilled into the Bacanuchi River. Sulfuric acid is a highly corrosive chemical that can cause irritation of the eyes, nose and throat.
Contact Us
Sulfuric acid leaching of sulfide slag of Sarcheshmeh
The sulfuric acid with low concentration causes fewer amounts of Fe and other impurities dissolution in more leaching times. But, sulfuric acid leaching could not recover the sulfide slag copper in high efficiencies, due to sulfur layer formation on the slag particles during the leaching process [8, 17].
Contact Us
Trammo Sulfuric Acid
Sulfuric acid is a key element in the production of fertilizer (phosphates and ammonium sulfate) which is its primary use (approximately 65% of total consumption). Sulfuric acid is also used in the mining industry for leaching of copper, nickel, uranium and other elements from ores (approximately 15% of
Contact Us
LEACHING OF METALS FROM WASTE PRINTED CIRCUIT
extent of copper leaching and the leaching of other metals using sulfuric acid and nitric acid was investigated. Because sulfuric acid was ineffective in leaching the metals, hydrogen peroxide was added as an oxidizer. However, in the granular WPCBs containing copper in
Contact Us
A comprehensive study of the leaching behavior and
A comprehensive study of the leaching behavior and dissolution kinetics of copper oxide ore in sulfuric acid lixiviant B. Bayati, A. Azizi, and M. Karamoozian Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, Iran. Received 20 September 2017; received in revised form 20 December 2017; accepted 27 January 2018
Contact Us
Recovery of Copper by Solution Mining Methods AZ
Recommended Citation Briggs, D.F., 2015, Recovery of Copper by Solution Mining Methods. Arizona Geological Survey Contributed Report CR 115 A, 10 p. Recovery of Copper by Solution Mining Methods 1 a weak sulfuric acid solution. Copper within the rock is leaching of copper bearing ores in the U.S The dissolved
Contact Us
A STUDY OF LEACHING OF COPPER OXIDE ORE BY SULPHURIC ACID
The Democratic Republic of Congo copper oxide ore containing mainly malachite was leached in sulphuric acid. The effects of leaching time, pH, stirring speed, and temperature on the dissolution
Contact Us
Improvements in Copper heap leaching by use of wetting
solution is refreshed with sulfuric acid and fed as barren solution again to the heap. Modelling copper heap leaching Leaching implies a reaction between solid particles and a liquid phase. The shrinking core model describes the leaching process of an idealized oxide copper ore particle [1]. This particle reacts from the surface inwards.
Contact Us
sulfuric acid copper leaching YouTube
Sep 02, 2016Demand for sulphuric acid for copper leaching appears to be reaching its leaching, Department of Hydrology and Water Resources The chemical and kinetic mechanism for leaching of chrysocolla by
Contact Us
LEACHING KINETICS OF COPPER FROM CHALCOPYRITE
Leaching kinetics of copper from chalcopyrite concentrate in nitrous sulfuric acid 411. The leaching of chalcopyrite concentrate with a particle size of 15 m in nitrite containing solutions had a high reaction rate. Over 98% of the copper was dissolved in 120 min at 120 C.
Contact Us
Sulfuric Acid Mining Health and Safety
Sulfuric acid (H. 2. SO. 4. ) is a strong acid. It is an odorless, clear to dark brown, oily liquid that is corrosive. Sulfuric acid has many industrial purposes and is produced in greater quantities than any other chemical worldwide. In metal mining, sulfuric acid is used to leach copper oxide minerals.
Contact Us
Leaching of metals from hydrometallurgical residue by
The effect of leaching time on the recovery of metals Zn, Fe and Cu were studied at constant sulfuric acid concentration (2mol.L 1), particle size (63m) for solid to liquid ratio (110) and at a temperature of leaching solution of 85 C.
Contact Us
Trammo Sulfuric Acid
Sulfuric acid is a key element in the production of fertilizer (phosphates and ammonium sulfate) which is its primary use (approximately 65% of total consumption). Sulfuric acid is also used in the mining industry for leaching of copper, nickel, uranium and other elements from ores (approximately 15% of
Contact Us
Copper Mining and Processing Processing of Copper Ores
The leaching reagent (dilute sulfuric acid) is sprayed through sprinklers on top of the heap pile and allowed to trickle down through the heap, where it dissolves the copper from the ore. The resulting pregnant leach solution of sulfuric acid and copper sulfate is collected in a small pool.
Contact Us
Sulphuric acid leaching of zinc and copper from Nigerian
The leaching of zinc and copper from Nigerian bulk sulphide ore with sulphuric acid in the presence of hydrogen peroxide was studied. The aim of the study was to investigate the effectiveness of hydrogen peroxide as an oxidant for the sulphuric acid leaching of zinc
Contact Us
LEACHING OF A Cu CoORE FROM CONGO USING
or vat operations, sulphuric acid is commonly used to leach copper from oxide minerals such as malachite (CuCO 3.Cu(OH) 2), azurite (2CuCO 3.Cu(OH) 2) and chrysocolla (CuO.SiO 2.2H 2 O). Sulphuric acid was also used to easily leach copper from a roasted Cu Pb matte [4]. Such a leaching scheme however needs to
Contact Us
Innovations How Hydrometallurgy and the SX/EW Copper
Bacterial Leaching. On investigation it was found that naturally occurring bacteria were oxidizing iron sulfides and the resulting ferric sulfate was acting as an oxidizer and leachant for copper sulfides. These bacteria were given the name ferrooxidans for their action in oxidizing iron sulfides.
Contact Us
Open Access The Leaching of Dolomitic Copper Ore Using
The leaching was carried in duration of 0 6 hours. The sulphuric acid was found to be effective in recovering copper from chalcopyrite with efficiencies of 72 to 93 % for 75 micron particle size and 65 to 84% for the 212 micron sieve size at different pulverising times.
Contact Us
Heap leaching
This method is an acid heap leaching method like that of the copper method in that it utilises sulfuric acid instead of cyanide solution to dissolve the target minerals from crushed ore. The amount of sulfuric acid required is much higher than for copper ores, as high as 1,000 kg
Contact Us
(PDF) Leaching of copper oxide with different acid solutions
Material after leaching in citric acid solutions can be processed, in the second step, using sulfuric acid solutions, and it could lead to the recovery of almost all copper contained in it. View
Contact Us
Some Studies on Sulfuric Acid Leaching of Anode Slime with
Abstract. At room temperature, sulfuric acid leaching without any additive resulted in poor recoveries of metals other than copper. With the addition of MnO 2 to the leaching system at room temperature, an increase in the recovery values of copper, selenium, and tellurium was found. The recovery was further increased to 90% Cu, 37% Se,
Contact Us
Producing Copper Nature's Way Bioleaching
Summary. Bioleaching involves the use of microorganisms to catalyze the oxidation of iron sulfides to create ferric sulfate and sulfuric acid. Ferric sulfate, which is a powerful oxidizing agent, then oxidizes the copper sulfide minerals and the copper contained is then leached by the sulfuric acid formed.
Contact Us
Copper extraction
Secondary sulfides those formed by supergene secondary enrichment are resistant to sulfuric leaching. These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.
Contact Us
Leaching of copper(I) sulphide by sulphuric acid solution
Leaching of copper(I) sulphide by sulphuric acid solution with addition of sodium nitrate. This paper aims to investigate the leaching process of copper(I) sulphide by sulphuric acid solution in the presence of sodium nitrate as it has not been studied sufficiently
Contact Us
Environmental Impact of Sulfuric Acid Leaching
Sulfuric acid, the leaching agent, is brought on site in large tankers. The sulfuric acid is diluted and sprayed or dripped over oxide ore, which dissolves the oxidized minerals completely in the solution. The solution, pregnant with the dissolved metals, is then piped to the SX EW plant that separates out the copper into 99% pure bars.
Contact Us
Some Studies on Sulfuric Acid Leaching of Anode Slime with
The process involved the leaching of anode slime in sulfuric acid medium. At room temperature, sulfuric acid leaching without any additive resulted in poor recoveries of metals other than copper. With the addition of MnO2 to the leaching system at room temperature, an increase in the recovery values of copper, selenium, and tellurium was found.
Contact Us