leaching of manganese ores using corncob as

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leaching of manganese ores using corncob as reductant in h2so4 ...

Mar 30, 2015 ... Abstract: In this study, corncob was used as reductant for sulfuric acid leaching of manganese ore from. Daweezi, Upper Mohmand Agency, Pakistan. X-ray diffraction of representative powdered samples revealed the presence of manganese silicate MnSiO(SiO4), calcite (CaCO3), and α-quartz (SiO2).

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Leaching of manganese ores using corncob as reductant in H2SO4 ...

In this study, corncob was used as reductant for sulfuric acid leaching of manganese ore from Daweezi, Upper Mohmand Agency, Pakistan. X-ray diffraction of representative powdered samples revealed the presence of manganese silicate MnSiO(SiO4), calcite (CaCO3), and -quartz (SiO2). X-ray diffraction and energy...

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Reductive leaching of manganese from low-grade manganese ...

Extraction of manganese from manganese dioxide ores was investigated using corncob as a reducing agent in dilute sulfuric acid medium. The effects of corncob amount, concentration of sulfuric acid, leaching temperature, reaction time and ore particle size were discussed. The leaching efficiency of manganese reached...

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leaching of manganese ores using corncob as ... - EBSCOhost

Abstract: In this study, corncob was used as reductant for sulfuric acid leaching of manganese ore from. Daweezi, Upper Mohmand Agency, Pakistan. X-ray diffraction of representative powdered samples revealed the presence of manganese silicate MnSiO(SiO4), calcite (CaCO3), and α-quartz (SiO2). X-ray diffraction and...

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Reductive leaching of manganese oxide ores using waste tea as ...

There are a lot of reports about using biomass as reductant to leach manganese oxide ores, such as sawdust [10], cane molasses [11,12], molasses alcohol wastewater [13], cornstalk [14] and corncob [15]. It has been demonstrated that biomass is non-hazardous, and has good reactivity, availability and low cost and is used.

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Hydrometallurgical Process and Kinetics of Leaching Manganese ...

Feb 17, 2017 ... Hydrometallurgical Process and Kinetics of Leaching. Manganese from Semi-Oxidized Manganese Ores with Sucrose. Yuhong Wang, Shenglong Jin, Yan Lv, Yanjuan Zhang and Haifeng Su *. College of ... includes waste tea [8], corncob [9], cornstalk [10], molasses [11], sawdust [12], glucose [13], oxalic.

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statistical study on leaching of manganese from low-grade ...

Leaching studies of low-grade Egyptian manganese ore containing 25.3% MnO2, and 52.06 % Fe2O3 using glucose as reductant in ... (C), H2SO4/Mn stoichiometric (S), glucose/Mn mole ratio (G), leaching temperature (T), and leaching time (M). The main factors ... (oxalic acid, corncob, cornstalk, cane molasses,. Organic...

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Leaching of low-grade manganese ores by using nitric acid and ...

Dec 21, 2017 ... Manganese extraction from low-grade ores was investigated by using glucose as a reducing agent in dilute nitric acid medium. Ore characterisation by X-ray and SEM denoted that ... oxide which can be leached by sulfuric acid. ... Leaching of manganese ores using corncob as reductant in H2SO4 solution.

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Phase, Microstructure and Beneficiation of Manganese Ore by Acid ...

Jan 26, 2018 ... the ore, leaching temperature, time duration, Mn ore amount, sulphuric acid concentration and amount of sawdust. Manganese extraction of 88.93 (wt%) was achieved for a leaching time of 60 minutes at 120˚C using 5% (v/v) H2SO4 concentration for 10 g Mn ore and 5 g sawdust. The results demonstrate...

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Reductive leaching of manganese from low-grade pyrolusite ore in ...

Manganese (Mn) leaching and recovery from low-grade pyrolusite ore were studied using sulfuric acid (H2SO4) as a leachant and pyrolysis-pretreated sawdust as a reductant. The effects of the dosage of pyrolysis-pretreated sawdust to pyrolusite ore, the concentration of sulfuric acid, the liquid/solid ratio, the leaching...

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potency of making the chemical manganese dioxide (cmd) - Jurnal ...

Apr 6, 2016 ... molasses, hay, corn cob and sawdust. (Sumardi, 2013). The use of corncob as reductant in reductive pyrolusite leaching had been conducted by Aliet al. (2106). The siliceous manganese ore were diluted in 1.9 mol/dm3 sulfuric acid solution. Best manganese extraction was 92.8% and accomplished in 60...

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US4567026A - Method for extraction of iron aluminum and titanium ...

The method comprises magnetically extracting magnetite from the ash, leaching the ash with a solution of a mineral acid, precipitating and removing titanium and ... see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors.

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Studi Pelindian Mangan secara Reduksi dengan Menggunakan ...

1 Jun 2017 ... The leaching of manganese from manganese dioxide ores in sulfuric acid solution was investigated. ... Xike, T., Xiaoxia, W., Yang, C., Liang, Y., Zhengbang, P., and Wang, Y. Reductive leaching of manganese from low-grade manganese dioxide ores using corncob as reductant in sulfuric acid solution.

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US6312500B1 - Heap leaching of nickel containing ore - Google ...

A process is provided for heap leaching ore to recover nickel. The process is particularly effective for ores that have a tangible clay component (i.e., greater than about 10% by weight). The process includes sizing the ore (where necessary), forming pellets by contacting ore with a lixiviant and agglomerating. The pellets are...

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Nayl, A.A. - Google Scholar Citations

... of pure MnSO4∙ H2O by reductive leaching of manganese from pyrolusite ore by sulfuric acid and hydrogen peroxide. AA Nayl, IM Ismail, HF Aly. International Journal of Mineral Processing 100 (3-4), 116-123, 2011. 60, 2011. A comparative study of vanadium extraction by Aliquat-336 from acidic and alkaline media with...

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Physicochemical Problems o f Minerał Processing

Jan 1, 2016 ... original papers dealing with principles of mineral processing and papers on technological aspects of mineral .... S. Ali, Y. Iqbal, U. Farooq, S. Ahmad, Leaching of manganese ores using corncob as reductant in ... G. Leon, G. Martinez, L. Leon, M. A. Guzman, Separation of cobalt from nickiel using novel.

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Dr. Yaseen Iqbal - University of Peshawar

Sajad Ali, Y Iqbal, Umar Farooq, Sajjad Ahmad, Reductive leaching of manganese ores using corncob as reductant in H2SO4 solution, J. Physicochemical Problems of Mineral Processing, (2016) 52(1) 56-65 ISSN 2084-4735 IF: 0.862. R Muhammad, Y Iqbal, Phase, microstructure and microwave dielectric properties of...

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Mn recovery from medium grade ore using a waste ... - NOPR

Email: m_k_ghosh@yahoo.com. Received 21 November 2008; revised 4 May 2009. Medium grade siliceous manganese ore containing 38.22% Mn was leached in sulphuric acid medium using shredded newspaper as reducing agent. Objective of the present study was to investigate the effectiveness of ligno-cellulosic...

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Reductive leaching kinetics of low grade manganese deposits in ...

sulfuric acid medium with malonic acid as the reducing agent. Leaching parameters were optimized as. 1.0 M H2SO4, 10% malonic acid in solid/liquid ratio 1:10 for 90 min at 80°C and using ore ground to –. 74 µm. Under these conditions, the leaching efficiency of manganese reaches 97%, whilst iron dissolution did not...

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Leaching process and kinetics of manganese in low-grade ...

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 ... Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction.

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A novel process to effectively extract values from a manganese ...

A novel process to effectively extract values from a manganese-bearing Au-Ag ore by pretreatment with iron scrap as reductant ... Before cyanidation, a reductive sulfating leaching pretreatment process was adopted to preferentially dissolve manganese from the primary ores, according to mineralogy of the ores and possible...

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Preparation of manganese sulfate from low-grade manganese ...

May 12, 2016 ... 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...

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Chemical Processing of Low Grade Manganese Ore - International ...

Feb 1, 2014 ... It has been found that Mn/Fe ratio increases with increase in roasting temperature. The next series of experiment has been carried out on leaching of roasted Manganese ore using dilute hydrochloric acid as leach ant. This treatment resulted into increased Mn/Fe ratio by dissolution of excess iron. 1.

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Mineralogy and silver distribution in argentiferous manganese ores ...

Abstract: Various Ag-Mn ore samples from La Encantada Mines in Mexico, were mineralogically characterized by ... Keywords: silver manganese ores, silver, recovery, mineralogy, selective leaching. Introduction ..... ALI S., IQBAL Y., FAROOQ U., AHMAD S., 2016, Leaching of manganese ores using corncob as reductant in...

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dissolution and precipitation of zinc and manganese obtained from ...

Jul 3, 2013 ... manganese ores and wastes have also generated a lot of interest as a potential source of associated metal ... al., 1994), corncob reduction leaching (Tian et al., 2010), oxalic acid reduction leaching (Sahoo ... In reductive acid leaching tests the battery powder was leached using ascorbic acid as a reducing...

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Response surface optimization of fluidized roasting reduction of low ...

Lasheen, T.A., el Hazek, M.N., Helal, A.S. (2009) Kinetics of reductive leaching of manganese oxide ore with molasses in nitric acid solution. Hydrometallurgy, 98(3-4): 314-317. [ CR ] [ EČ ][ GS ]. Long, H., Chai, L., Qin, W. (2010) Galena-pyrolusite co-extraction in sodium chloride solution and its electrochemical analysis.

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LEACHING OF MANGANESE ORES USING CORNCOB AS ...

Abstract: One of the operations in particulate processing which has an ancient history and a widespread use is granulation. Granulated compost fertilizer was granulated using the drum granulation method under different level of drum filling. Filling of the drum ranged from 5 to 10% (v/v). The effect of filling of the drum on...

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Banana Peel Reductant for Leaching Medium Grade Manganese ...

Manganese is usually obtained by reducing manganese oxide (which is present in manganese ores) using various ... different agricultural by-products such as tea waste [6], molasses [7], corn-stal [8], corncob [9] and sugar cane ... dried manganese ores were crushed into small pieces with an area of approximately 1 cm2.

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Leaching and Kinetic Modeling of Malaysian Low Grade ...

The leaching process of Malaysian low grade manganese ore (LGMO) using bamboo sawdust (BSD) as reducing agent in acidic medium (H2SO4) and the dissolution kinetics of this ore was investigated. Acid concentration, reaction temperature, and BSD loading were chosen as experimental parameters through...

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