bioleaching of copper converter slag using aspergillus

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  Mohamad Mirazimi Teaching Assistant The University of ...

  Bioleaching was used to mobilize copper, zinc and nickel from printed wire boards (PWBs). Pulp density and medium culture are two effective factors which have been optimized in this paper.

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  Core Chemistry Flashcards | Quizlet

  Core Chemistry. Hydrogen gas molecules are added to the oil to replace some or all carboncarbon double bonds with carboncarbon single bonds which raises the melting point of the oil to make it a solid at room temperature. The reaction takes place over a nickel catalyst at temperatures of 60°C.

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  Bioleaching of fueloil ash using Acidithiobacillus ...

  As can be seen in the figure, bioleaching of FOA using sulfur as an energy source led to an increase in sulfate concentration in the medium. The highest sulfate concentration in the medium was observed for the initial ash concentration of % and the sulfate concentration increased from the initial g L −1 to g L −1 at the end of the day 9th bioleaching process.

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  Siksha O Anusandhan University | MDRC

  The study illustrated a strong catalytic response of PWp with enhanced biorecovery of copper from acidconditioned chalcopyrite. A maximum of % copper recovery (% Cu dissolution/day) was obtained in 6 days of bioleaching in presence of 2 gL 1 PWp in .

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  Copper Smelting Process – Furnaces Used, ByProducts, and ...

  Smelting Copper Using a Reverberatory Furnace. Meanwhile in the converter furnace, the molten copper is being subjected to an injection of oxygenated compressed air. The oxygen reacts with the sulphide ore, producing copper sulphate whilst converting the copper ions to blister copper of over 98% purity.

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  Bioleaching definition of bioleaching by The Free Dictionary

  2) are used as a biocatalyst in many industrial processes including biopulping, bioleaching and treatment of industrial waste water (Bourdais et al. The fungi are the most common and efficient group of the heavy metal resistant microbial family which have potential for metal bioleaching.

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  Screening and characterization of acid producing fungi ...

  metals through bioleaching which offers solutions for a process described as being "the dissolution of metals from their mineral sources by certain naturally occurring microorganisms" or "the use of microorganisms to transform elementssothattheelementscanbeextractedfromamaterial

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  Bioprocessing of a Lowgrade Chalcopyrite Ore by the ...

  Bioprocessing for copper recovery from a lean grade chalcopyrite ore of Malanjkhand Copper Project (MCP) is reported. This ore with % copper, which is adjacent to the rich grade ore (% Cu), available in large amount is untouched for want of a suitable option, can be utilized to meet the growing demand of the metal in the country.

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  Bioleaching: metal solubilization by microorganisms ...

  Jan 17, 2006· Bioleaching is a simple and effective technology for metal extraction from low‐grade ores and mineral concentrates. Metal recovery from sulfide minerals is based on the activity of chemolithotrophic bacteria, mainly Thiobacillus ferrooxidans and T. thiooxidans, which convert insoluble metal sulfides into soluble metal sulfates. Non‐sulfide ores and minerals can be treated by .

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  TwoStep Bioleaching and Spent Medium Leaching of Gold ...

  Spent medium bioleaching using bacterial cell free metabolites showed a higher gold recovery of 18%, compared to that of twostep bioleaching of 11% at % w/v pulp density of ESM. Gold bioleaching was further enhanced to 30% when the pH of the spent medium was increased to shift the equilibrium in favor of cyanide ions production.

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  Dr Abhilash | National Metallurgical Laboratory

  Biodissolution of copper from low grade Chalcopyrite ore using adapted Acidithiobacillus ferrooxidans, P85 at SIM Annual Meeting, 2007. 3. Effectiveness of bioleaching of low grade Indian chalcopyrite ore using pure and mixed culture of mesophiles, Minerals to Materials Conference M2M 08, Cairo, Egypt. 4.

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  BIOHYDROMETALLURGICAL METHODS FOR METALS .

  Aspergillus niger are examples of some eukaryotic microorganisms used in bioleaching during metal recovery from industrial waste. Apart from the possibility of metals bioleaching in acidic environment in the biohydrometallurgical techniques, microorganisms able to .

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  Mohamad Mirazimi Google Scholar Citations

  Vanadium removal from LD converter slag using bacteria and fungi SMJ Mirazimi, Z Abbasalipour, F Rashchi Journal of environmental management 153, 144151, 2015

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  Department of Metallurgical Engineering » List of Research

  Fungal Bioleaching of Nickel Laterite Ore using Aspergillus niger: Mandiri / Pribadi ... (Top Blown Rotary Converter), UBPP Logam Mulia, PT ANTAM (Persero) Tbk: PT Antam (Persero) Tbk. ... Pengaruh Ore Blending dan Controlled Potential Sulphidization Terhadap Perolehan Tembaga dan Kadar Acid Soluble Copper pada Tailing di PT Newmont Nusa ...

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  Minerals | Free FullText | Vanadium Bioleaching Behavior ...

  This study investigated bioleaching behavior of vanadium from a vanadiumbearing shale using Acidithiobacillus ferrooxidans (A. ferrooxidans). Results showed a maximum recovery of 62% vanadium in bioleaching, which was % higher than the controls.

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  HYDROMETALLURGICAL PROCEDURE FOR THE PRODUCTION .

  Jun 09, 2011· (1) Drying, sorting and disposal of granulated slag in fixedbed heaps or modules: Granulated slag (a) produced in slag cleaning electric furnaces in copper smelting plants is transported with the humidity typical of the granulating process to the storage area near the slag heap leaching area.

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