Leach Manganese With Sulfuric Acid

07 November 2024

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Leaching of manganese from low-grade manganese ore using oxalic acid …

Oxalic acid can also be used as a reducing agent for manganese extraction from manganese dioxide ore. Leaching of manganese ore using oxalic acid-producing microorganisms has been reported (Stone, 1987). Chemical leaching of Mn ore using oxalic acid may give an insight into bioleaching.

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07 November 2024

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Recovery of manganese from sulfuric acid leaching liquor …

Semantic Scholar extracted view of "Recovery of manganese from sulfuric acid leaching liquor of spent lithium-ion batteries and synthesis of lithium ion-sieve" by Jishen Li et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 221,157,401 papers from all fields of science ...

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07 November 2024

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(PDF) Simultaneous leaching of zinc sulphide concentrate and manganese …

The kinetics of simultaneous leaching of zinc sulphide concentrate and manganese ore in sulphuric acid has been studied in the temperature range of343 to 373 K.

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07 November 2024

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Sulfuric Acid Leaching of Smelter Matte

The sulfuric acid-manganese dioxide leaching of lead smelter mattes and subsequent processing to recover the contained cobalt, nickel, and copper are included in the proposed flow diagram shown in figure 9. The matte leaching produces a cobalt, nickel, and copper containing liquor that is contaminated with arsenic and iron. ...

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07 November 2024

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Reductive leaching of manganese from low-grade manganese …

Manganese extraction from a low-grade ore was investigated using cane molasses as a reducing agent in dilute sulfuric acid medium. The effects of concentrations of cane molasses and sulfuric acid, leaching temperature as well as reaction time were discussed.The results showed that high manganese recovery with low Fe and Al extraction yield could be …

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07 November 2024

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Recovery of Al, Co, Cu, Fe, Mn, and Ni from Spent …

Gluconic acid gave only insufficient mobilization rates except for copper and manganese. Its leaching efficiency for copper is almost identical to that obtained with sulfuric acid (49.1 vs. 48.7 %). ... The same applies for …

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07 November 2024

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Manganese ore tailing: Optimization of acid leaching …

Through the Doehlert design, it was possible to optimize the manganese leaching allowing determination of the optimum working conditions, which were: stirring for 10 h, sulfuric acid concentration of 9.8% w/w and amount of waste 0.1000 g. The variables of sulfuric acid volume and stirring rate were set at 100 rpm and 10 mL, respectively.

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07 November 2024

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Augmenting metal leaching from copper anode slime by sulfuric acid …

Additionally, the reported studies on the sulfuric acid leaching with MnO 2 as oxidant only dealt with samples containing low concentration of selenides/tellurides, and the leaching behavior of manganese from the oxidant is often ignored (Hait et al., 2002, Hait et al., 2004; Xiao et al., 2018, Xiao et al., 2019).

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07 November 2024

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Reductive Leaching of Low-Grade Pyrolusite with Formic Acid

The extraction of manganese from low-grade pyrolusite is investigated using formic acid as reductant in sulfuric acid medium. The effects of volumes of formic acid, concentration of sulfuric acid, liquid to solid ratio (L/S), leaching time, and temperature on leaching efficiency of manganese, iron, and aluminum are valuated with single-factor experiments. The results …

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07 November 2024

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Preparation of manganese sulfate from low-grade manganese …

In this study, a method for preparing pure manganese sulfate from low-grade ores with a granule mean size of 0.47 mm by direct acid leaching was developed. The effects of the types of leaching agents, sulfuric acid concentration, reaction temperature, and agitation rate on the leaching efficiency of manganese were investigated. We observed that sulfuric acid …

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07 November 2024

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Kinetics and mechanism of manganese reductive leaching …

Alternatively, manganese can be directly extracted by acid leaching with low-priced manganese oxide. This process has the merits of high recovery of Mn and Pb, as well as the shortcoming of high energy consumption since self-heated is absent during high-temperature roasting. ... Sn and Se, using sulfuric acid leaching. This technique can ...

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07 November 2024

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Leaching of iron from copper tailings by sulfuric acid: behavior

Sulfuric acid concentration and temperature both have a significant effect on leaching process. When the sulfuric acid concentration reached 0.53 mol L −1, FeO from Fe 3 O 4 was slightly decomposed. 25 However, an excess of sulfuric acid would destroy the leaching system due to the rapid formation of H 4 SiO 4 by the quick dissolution of Fe 2 ...

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07 November 2024

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The Effect of Process Conditions on Sulfuric Acid …

Manganese sludge, an industrial waste product in the ferroalloy industry, contains various components and holds significant importance for sustainable development through its valorization. This study focuses on …

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07 November 2024

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Beneficiation and Sulfuric Acid Leaching of Manganese Ore

The beneficiation of low-grade manganese ore is investigated using applied magnetics separation, multi-gravity separator, shaking table, flotation methods, and sulfuric acid leaching. The manganese content in the ore sampled from the Unagad deposit is 17.31%. The best option and high result among beneficiation experiments is the use of a multi-gravity...

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07 November 2024

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Preparation of manganese sulfate from low-grade …

kinetics of leaching low-grade manganese ore in sulfuric acid media and achieved a manganese leaching efficiency of 96.73% under the optimal conditions. Although a high leaching rate of manganese was achieved and the fractal ki-netic characteristics of the leaching manganese carbonate ores was successfully demonstrated, several measures re-

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07 November 2024

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Leaching of manganese from low grade manganese ore using oxalic acid …

The Manganese extraction from manganese ores is mainly carried out by reducing the ore in the first stage to manganese (II) oxide followed by leaching with sulfuric acid [6][7] or direct sulfuric ...

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07 November 2024

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Recovery of manganese from sulfuric acid leaching liquor …

A novel process of recovery of Mn as lithium ion-sieve from H2SO4 leaching liquor of spent lithium-ion batteries was developed. After precipitation of Fe³⁺ and Cu²⁺ in the leaching liquor ...

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07 November 2024

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A Comparative Study on Acid Leaching of Low Grade Manganese …

The Manganese extraction from manganese ores is mainly carried out by reducing the ore in the first stage to manganese (II) oxide followed by leaching with sulfuric acid [6][7] or direct sulfuric ...

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07 November 2024

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(PDF) Preparation of manganese sulfate from low …

A 97.43% leaching ratio of manganese was obtained from the roasted ore, which was leached by a 1.5 mol/L concentration of sulfuric acid at a 50°C leaching temperature, 50 rpm stirring speed and a ...

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07 November 2024

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Effect of sulfuric acid concentration on the leaching efficiency.

In order to utilize low-grade manganese ore resources effectively, a hydrometallurgical process was developed for manganese extraction in dilute sulfuric acid medium, and the kinetics of leaching ...

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07 November 2024

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(PDF) Selective-Reductive Leaching of Manganese from …

Oxalic acid concentration has a great influence on Mn extraction, followed by temperature and sulfuric acid concentration. Prasetyo [7] studied the leaching of manganese from low-grade manganese ...

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07 November 2024

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Manganese metallurgy review. Part I: Leaching of …

Jiang et al. (2003) investigated a simultaneous leaching process for extraction of manganese and silver by one-step leaching in sulfuric acid solution in the presence of hydrogen peroxide. Thermodynamics of the Mn–H 2 O and Ag–H 2 O systems show that there is a predominance region where Mn 2+ and Ag + coexist in solution.

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07 November 2024

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Hydrometallurgical recovery of metal values from sulfuric acid leaching

In this study, a hydrometallurgical process was adopted for the comprehensive recovery of nickel, manganese, cobalt and lithium from sulfuric acid leaching liquor from waste cathode materials of spent lithium-ion batteries. First, nickel ions were selectively precipitated and recovered using dimethylglyoxime reagent.

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07 November 2024

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Sulfuric acid leaching of ocean manganese nodules using …

The sulfuric acid leaching of manganese nodules using hydrogen peroxide (H20z) as a reducing agent, developed by the United States Bureau of Mines (Allen et al., 1991), seems to be a promising process route. The leaching rate is very fast and metal extraction generally completes in about 5 minutes. The oxidation products of the hydrogen ...

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07 November 2024

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Efficiency and sustainable leaching process of manganese …

DOI: 10.1016/j.hydromet.2020.105519 Corpus ID: 228892770; Efficiency and sustainable leaching process of manganese from pyrolusite-pyrite mixture in sulfuric acid systems enhanced by microwave heating

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07 November 2024

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Kinetics of acid leaching of high Ca and Si manganese ores …

Gamini Senanayake [Citation 4] leach manganese dioxide by reducing sulfuric acid, and obtain the surface reaction kinetic model. Lasheen and Hazek et al. [Citation 5] studied the reduction and leaching kinetics of manganese in low grade manganese ore with molasses as reducing agent in dilute nitric acid. They found that the rate of reaction is ...

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07 November 2024

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Hydrometallurgical Process and Kinetics of …

The extraction of manganese from a semi-oxidized manganese ore was investigated with sucrose as the reducing agent in dilute sulfuric acid medium. The kinetics of leaching manganese from the complex ore containing …

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07 November 2024

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Micellar mediated selective leaching of manganese nodule …

The factors that affected the sulfuric acid leaching of the manganese nodules in the presence of various surfactants were investigated. The effect of anionic (SDS-Sodium Dodecyl Sulphate), cationic (CTAB-Cetyl Trimethyl Ammonium Bromide) and nonionic (Triton-X 100) surfactant on the various metals extraction with respect to sulfuric acid ...

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07 November 2024

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(PDF) Preparation of manganese sulfate from low-grade manganese …

Therefore, from an economic perspective, the sulfuric acid leaching of low-grade manganese ores for the production of manganese sulfate is an important process [8]. Recently, numerous studies on the leaching of low-grade manganese oxide ores for preparing pure manganese sulfate have been carried out using various reducing reagents, including ...

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07 November 2024

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Kinetics and mechanism of manganese reductive leaching …

The effect of stirring speed on the manganese leaching from EMAS was studied in the range of 200–700 r/min, other leaching conditions were samples particle size range of …

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