Sulfuric acid leaching for capturing value from copper rich converter slag
Sulfuric 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 ...
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Grupo Mexico's activities in Guaymas suspended after sulfuric acid
Following the tank's failure on July 9, Grupo Mexico's personnel started transferring the spilled acid into a pipe. At the moment, the incident was not deemed serious enough for the maritime ...
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Sulfuric acid leaching of zinc silicate ore under pressure
About 20 g of ground and sieved ore and sulfuric acid of required mole ratio diluted with distilled water were mixed thoroughly prior to each experiment. During the experimental setup, ... Zinc recovery from Zawar ancient siliceous slag. Hydrometallurgy, 15 (1986), pp. 267-280. View PDF View article View in Scopus Google Scholar.
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ASARCO's History
1972-73 ASARCO constructs acid plants in Ruston, Hayden and El Paso, to collect sulfuric acid and reduce sulfur dioxide emissions. The company calls the acid …
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Degradation effects in concrete bound ferrochrome slag …
Ferrochrome slag (FS) having favourable mechanical properties) may be gainfully utilised as concrete aggregate. The concrete specimens with FS, natural stones (NS) and NS concrete mixed with 2% chromium nitrate salt (CR) as coarse aggregate were prepared. The samples were cured in aggressive curing solution like sulphuric acid …
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Hard Rock Lithium Processing
to hot sulphuric acid attack. Due to this expansion, the specific gravity of the spodumene decreases from 3.1 g/cm3 (natural α-spodumene) to around 2.4 g/ cm3 β-spodumene). After roasting, the material is cooled and then mixed with sulphuric acid (95-97%). The mixture is roasted again at about 200°C. An exothermic reaction starts
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Recovery of Manganese from Ferromanganese Slag by …
Investigations on extraction of manganese from ferromanganese slag, a waste product from a local ferroalloy industry, were carried out using sawdust as a reducing agent. Leaching of manganese was done with sulphuric acid. The effects of particle size, stirring speed, contact time, acid concentration, temperature and dosage of reductant …
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Kinetics of reduction leaching of manganese dioxide ore …
The leaching kinetics of reductive leaching of manganese from manganese dioxide ores (MDO) in dilute sulfuric acid in the presence of Phytolacca americana powders (PAP) was investigated.
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Recovery of titanium, aluminum, magnesium and separating …
An energy-efficient route was adopted to treat titanium-bearing blast furnace slag (TBBFS) in this study. Titanium, aluminum, and magnesium were simultaneously extracted and silicon was separated by low temperature sulfuric acid curing and low concentration sulfuric acid leaching. The process parameters of sulfuric acid curing …
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Recovery of Magnesium from Ferronickel Slag to Prepare …
This paper provides a technical approach for efficiently recovering Mg from ferronickel slag to produce high-quality magnesium oxide (MgO) by using the sulfuric …
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Leaching process and kinetics of manganese in low-grade manganese ore
Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio (V/W) and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching …
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Leaching kinetics of lanthanum in sulfuric acid from rare …
The REE slag was digested and the digested liquor was analyzed by ICP-MS and the result was presented in Table 1.Although cerium was the rare earth present in the highest concentration in the slag, cerium(IV) in the form of CeO 2 is not easily leached in dilute sulfuric acid (Xiulian et al., 2010).Lanthanum was the rare earth present in the …
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Sulfur Removal and Iron Recovery from High-Pressure Acid …
DOI: 10.1007/s40831-024-00853-y Corpus ID: 270235335; Sulfur Removal and Iron Recovery from High-Pressure Acid Leaching Residue of Nickel Laterite Ore …
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Leaching kinetics of lanthanum in sulfuric acid from rare …
REE slag was obtained from reduction smelting of magnetite ore containing monazite.Using the REE slag, the leaching kinetics of lanthanum from the slag was studied under the conditions of slurry density of 1.5 g slag per L of 0.3 M H 2 SO 4, agitation of 750 rpm and temperature ranging from 30 to 80 °C. After five hours of leaching, the …
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Pressure Sulfuric Acid Leaching of Manganese-Rich Slag …
Large amounts of manganese-rich slag were generated from smelting low-grade manganese ore containing high iron and high phosphorus in electric furnace or blast furnace, which contain 25–40 mass% Mn. This paper describes an efficient hydrometallurgical process for the utilization of high manganese slag instead of …
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Extraction of Valuable Components from Ti-Bearing Blast …
reacting with it, the acid-slag ratio is set to 1:1, and the amount of sulfuric acid in the experiment is increased in equal proportion on this basis. As the acid-slag ratio increases, the extraction rates of Ti, Mg, and Al components increase first and then stabilize. When the acid-slag ratio was 1.4, the optimal extraction rates of Al, Mg ...
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Sulfur Removal and Iron Recovery from High-Pressure Acid …
DOI: 10.1007/s40831-024-00853-y Corpus ID: 270235335; Sulfur Removal and Iron Recovery from High-Pressure Acid Leaching Residue of Nickel Laterite Ore @article{Wu2024SulfurRA, title={Sulfur Removal and Iron Recovery from High-Pressure Acid Leaching Residue of Nickel Laterite Ore}, author={Jiyao Wu and Bao-zhong Ma …
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Recovery of Manganese from Ferromanganese Slag by …
In this study sawdust was used as reductant for sulphuric acid leaching of manganese ore. Effects of pulp density, amount of acid, temperature, particle size of ore and amount of sawdust were studied.
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Leaching kinetics and predictive models for elements extraction …
The progress of reactions between copper, cobalt and iron in copper oxide ore and sulphuric acid under different reaction conditions was studied. The results of the kinetic mechanism study showed that the shrinking core model can be used to describe the leaching process, and the leaching rate was controlled by the mixed controlled …
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Life Cycle Assessment of Sulfuric Acid Production System in …
The foreground data for LCA were provided from the Tunisian Chemical Group and the background data were obtained for Ecoinvent 3 database. The software used to detect the environmental impacts is SimaPro ® 8.3 with the ILCD 2011 midpoint + V1.09 impact assessment method. Sixteen impacts were detected: climate change, Ozone Depletion, …
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Kinetics of microwave roasting of zinc slag oxidation dust …
These results are in agreement with the work of Zhang et al. [9] who have reported sulphuric acid leaching of zinc and indium from synthetic indium-bearing zinc ferrite (IBZF). Download : Download high-res image (282KB) Download : Download full-size image; Fig. 4. Effect of the ratio of acid to ZSOD mass on extraction rate of zinc (a) and ...
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Sulphuric Acid Plants in Metallurgical Facilities: Options for …
Figures 1 and 2 show material and energy block flow diagrams of a typical double contact and single contact metallurgical gas acid plant, respectively. SO 2 bearing gas stream leaves smelter / roaster at temperatures exceeding 1000 °C. This gas is cooled to about 350 °C in a waste heat boiler to recover heat as high-pressure steam up to 66 …
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A study on the sulphuric acid leaching of copper converter slag …
A study on the sulphuric acid leaching of copper converter slag in the presence of dichromate. ... Elazig, Turkey. The slag sample was crushed in a jaw crusher and ground in a ball mill and then sieved. The fraction of −74 μm (200 mesh) was used in all experiments. Particle size distribution analyses indicated that the mean particle diameter ...
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Recent Progress in Hydrometallurgical Processing of Nickel Lateritic Ore
It involves the HL of the ore by dilute sulfuric acid at ambient temperature, purification of the leach liquor, and recovery of nickel and cobalt by electrowinning. 3.4 High–Pressure Sulfuric Acid Leaching. As shown in Fig. 10, HPAL requires a 30–50 bar pressure and a temperature of 240-270 °C . The grounded ore slurry is thickened before ...
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Sulfur and Sulfuric Acid
Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock [].A yellow solid at room temperature, sulfur becomes progressively lighter in color at lower …
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Pressure leaching of high silica Pb–Zn oxide ore in sulfuric acid …
Under the following optimal process conditions, weight of manganese-rich slag powder,100 g; mass ratio of manganese-rich slag to pyrite, 20:1; sulfuric acid concentration of 140 g/L; air pressure ...
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Copper crusher|Copper mining equipment|Copper …
The coarser ore goes to the heap leach, where the copper is subjected to a dilute sulfuric acid solution to dissolve the copper. ... and offer types of copper ore crusher, mills, and concentration machine for copper ore mining operation in Chile, Peru, USA, Congo, Zambia, KZ, Mexico, Belgium, Germany, Zaire, Indonesia, Canada, Zimbabwe, Turkey ...
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A review of acid mine drainage: Formation mechanism, …
Processes such as grinding, blasting, and crushing these ores add to the surface area and cause the waste to weather, which can easily combine with oxygen …
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Mexicana de Cobre
Owner: Minera México, S.A. de C.V. - Mexicana de Cobre Location: La Caridad, Sonora Mexico: Background: Minera México is a holding company and all of its operations are conducted through subsidiaries that are …
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