Journal article
An integrated sequential biological leaching process for enhanced recovery of metals from decoked spent petroleum refinery catalyst: A comparative study
International Journal of Mineral Processing, Vol.134, pp.66-73
2015
Abstract
We report on the effectiveness of a two-stage sequential integrated bioleaching process for enhanced recovery of metals from decoked spent petroleum catalyst. Fourier transform-infrared spectra confirmed that decoking led to removal of entrained hydrocarbons and carbonaceous deposits from the raw spent catalyst. Several two-stage sequential leaching strategies (two-stage bioleaching, two-stage abiotic leaching, bioleaching followed by alkali leaching, alkali leaching followed by acid leaching, and two-stage alkali leaching) were evaluated in batch reactors. The results suggested that two-stage bioleaching (240 h) with Acidithiobacillus thiooxidans was the most effective strategy to recover Ni (79%) and V (90%). Whereas integrating bioleaching with alkaline leaching remarkably improved leaching yield of Mo (88%) in a shorter period of time (125 h). A mineral liberation analysis of the treated residue also confirmed that most of the Mo was leach out during second stage alkali leaching.
Details
- Title
- An integrated sequential biological leaching process for enhanced recovery of metals from decoked spent petroleum refinery catalyst: A comparative study
- Authors/Creators
- H. Srichandan (Author/Creator) - Chungnam National UniversityS. Singh (Author/Creator) - Korea Institute of Geoscience and Mineral ResourcesK. Blight (Author/Creator) - Murdoch UniversityA. Pathak (Author/Creator) - Korea Institute of Geoscience and Mineral ResourcesD.J. Kim (Author/Creator) - Korea Institute of Geoscience and Mineral ResourcesS. Lee (Author/Creator) - Korea Institute of Geoscience and Mineral ResourcesS.W. Lee (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
- Publication Details
- International Journal of Mineral Processing, Vol.134, pp.66-73
- Publisher
- Elsevier B.V.
- Identifiers
- 991005540471007891
- Copyright
- © 2014 Elsevier B.V.
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 7 Engineering & Materials Science
- 7.229 Mineral & Metal Processing
- 7.229.774 Bioleaching
- Web Of Science research areas
- Engineering, Chemical
- Mineralogy
- Mining & Mineral Processing
- ESI research areas
- Geosciences