Metal Leaching from Spent Petroleum Catalyst by Acidophilic Bacteria in Presence of Pyrite

Kim, Dong J.; Mishra, Dhaneshwar; Park, K. H.; Ahn, Jae-Woo; Ralph, D.E.

doi:10.2320/matertrans.mer2008187

Cited by 10 publications

(3 citation statements)

References 16 publications

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“…Likewise, investigations with acidophilic bacteria have been conducted using mixed cultures of Acidithiobacillus spp., A. thiooxidans and A. ferrooxidans (Kim, Mishra, Park, Ahn & Ralph, 2008), and A. ferrooxidans, A. thiooxidans and Letosphirilum ferrooxidans (Beolchini et al, 2012), grown in the presence of a broad range of pulp densities, in the range of 0.15-10% (w/v) of spent catalysts. Results showed the removal of Ni, Mo and V to the extent of 83-85%, 26-40% and 90-92%, respectively, emphasizing the potential of this type of microorganisms to remove significant amounts of Ni and V, and a less amount of Mo.…”

Section: Bacteriamentioning

confidence: 99%

Enfoques microbiológicos para el tratamiento de catalizadores agotados

Rivas-Castillo

Rojas-Avelizapa

2020

TIP RECQB

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Los catalizadores, homogéneos o heterogéneos, son ampliamente utilizados para una gran variedad de procesos industriales, con el fin de producir combustibles limpios y muchos otros productos valiosos, siendo los catalizadores agotados provenientes del hidroprocesamiento los mayores residuos sólidos de la industria de la refinería y la contribución principal a la generación de catalizadores agotados. Debido a su naturaleza peligrosa, el tratamiento y la recuperación de metales de este tipo de residuos han ganado cada vez más importancia, debido al agotamiento de los recursos naturales y a la contaminación ambiental. Aunque ya existen técnicas disponibles para estos fines, éstas generan grandes volúmenes de desechos potencialmente peligrosos y producen emisiones de gases nocivos. Por lo tanto, las técnicas biotecnológicas pueden representar una alternativa promisoria para el biotratamiento y la recuperación de metales contenidos en los catalizadores agotados. Con este fin, se han analizado diversos microorganismos, que comprenden bacterias, arqueobacterias y hongos, capacitados para facilitar la eliminación de losmetales contenidos en estoscatalizadores. En estarevisión se presenta un amplio escenario sobre los avances con respecto al manejo de los catalizadores agotados y su tratamiento tradicional, seguido de una descripción detallada sobre los enfoques microbiológicos reportados hasta la actualidad.

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Section: Bacteriamentioning

confidence: 99%

Enfoques microbiológicos para el tratamiento de catalizadores agotados

Rivas-Castillo

Rojas-Avelizapa

2020

TIP RECQB

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“…Depletion of primary reserves of metals has shown unprecedented growth in the recycling of metals from divergent secondary/spent/waste materials, which have also been explored with the aid of bio‐chemical processing in recent years . Useful research carried out in this direction is summarized in Table . Some of the important contributions with possible potential to achieve sustainability are discussed in this section.…”

Section: Hybrid Bio‐chemical Processingmentioning

confidence: 99%

Integration of microbial and chemical processing for a sustainable metallurgy

Ilyas

Kim

Lee

2017

J of Chemical Tech & Biotech

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Bioprocessing for the recovery of metal from divergent resources using the microbial strategy has emerged as a green technology in metallurgical operations. The limitations to maintain the ideal condition for bacterial growth with slow kinetics, however, have been considered as major obstacles to bioprocessing being implemented more widely. This can be overcome by integrating the microbes with a chemical processing route. The available reports on recent developments in hybrid bio‐chemical processing of both primary and secondary resources have presented promising results, exhibiting the potential for use in large‐scale metallurgy. In this context, reviewing the factors of the hybrid process would benefit from knowledge acquired in fundamental studies. The present review focuses on bio‐chemical process integration using eco‐friendly design tools for treating the difficult to extract resources and complex spent materials as well. Furthermore, the potential of hybrid technology has been evaluated by establishing an economic model as a case study which encompasses features of economic development, environmental consideration and societal matters to achieve process sustainability. © 2017 Society of Chemical Industry

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“…[14,15] They have been classified as hazardous materials by the United States Environmental Protection Agency (USEPA) due to the presence of heavy metals and other toxic components such as phosphorus and sulphur. [16][17][18][19][20][21] On the other hand, the concentration of metals in these catalysts usually can be several fold more than those found in natural ores. Therefore, the recycling of spent desulphurization catalysts as secondary resources of valuable metals can be attractive not only to prevent environmental pollution but also to reduce economic cost.…”

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confidence: 99%

Electrometallurgical recovery of nickel and vanadium from spent desulphurization catalysts using an acidic leaching–electrolysis technique

2023

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Spent desulphurization catalysts are considered a major secondary source of valuable metals. The contents of nickel and vanadium present in these catalysts, accompanied by environmental rules, have attracted scientists to explore diverse options for their effective processing. The electrometallurgy recovery of Ni and V from the spent desulphurization Ni‐Mo‐V/Al2O3 catalyst is described in this study. Using flat plate graphite electrodes, the electrochemical deposition of Ni and V from spent catalyst in an acid solution (HNO3/H2SO4) was investigated. By the central composite design of the response surface methodology, the effect of the operating factors was examined and optimized. At the ideal conditions of reaction temperatures of 84.0 and 42.0°C, electrolysis times of 5.6 and 4.4 h, liquid/solid ratios of 22.7 and 15.4 ml/g, and current densities of 229.0 and 255.6 A/m2, respectively, the recovery efficiencies of Ni and V were 81.96% and 93.07%. The statistical analysis revealed that the expected data (R2 = 0.9984 and R2 = 0.9883) were in good agreement with the observed data (R2 = 0.9984), with an average variation from experimental data of 0.78% and 0.65% for the optimum conditions of Ni and V recovery, respectively. It shows that the Ni and V nanoparticles deposited have a spherical form with purities of 84.39% and 90.76%, respectively. Because of its great efficiency and purity, the current study can provide a dependable procedure for extracting Ni and V from solid waste.

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Metal Leaching from Spent Petroleum Catalyst by Acidophilic Bacteria in Presence of Pyrite

Cited by 10 publications

References 16 publications

Enfoques microbiológicos para el tratamiento de catalizadores agotados

Enfoques microbiológicos para el tratamiento de catalizadores agotados

Integration of microbial and chemical processing for a sustainable metallurgy

Electrometallurgical recovery of nickel and vanadium from spent desulphurization catalysts using an acidic leaching–electrolysis technique

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