Microbial recovery of metals from spent coal liquefaction catalysts. Final and quarterly report, July 1994--September 1994

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Description

Research is reported on the recovery of molybdenum and nickel from spent coal liquefaction catalysts. Mo release from spent coal liquefaction catalysts has been shown to be dependent upon many parameters, but release is dominated by microbial growth. The microbial Mo release is a rapid process requiring less than one week for 90% of the releaseable Mo to be solubilized from whole washed (THF) catalyst. It could be expected that the rates would be even greater with crushed catalyst. Efforts were centered on optimizing the parameters that stimulate microbial growth and action and further efforts centered on catalyst pre-treatment prior ... continued below

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48 p.

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Sandbeck, K.A. & Cleveland, D. August 1, 1995.

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Description

Research is reported on the recovery of molybdenum and nickel from spent coal liquefaction catalysts. Mo release from spent coal liquefaction catalysts has been shown to be dependent upon many parameters, but release is dominated by microbial growth. The microbial Mo release is a rapid process requiring less than one week for 90% of the releaseable Mo to be solubilized from whole washed (THF) catalyst. It could be expected that the rates would be even greater with crushed catalyst. Efforts were centered on optimizing the parameters that stimulate microbial growth and action and further efforts centered on catalyst pre-treatment prior to microbial bio-leaching. Recent experiments suggest that hydrogen peroxide promises to be an effective pre-treatment wash. Hydrogen peroxide was also found to be an effective and economical agent for metals solubilization per se and could promote solubilization without subjecting the catalyst to microbial growth.

Physical Description

48 p.

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OSTI as DE95015515

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  • Other Information: PBD: [1995]

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  • Other: DE95015515
  • Report No.: DOE/PC/92119--T7
  • Grant Number: AC22-92PC92119
  • DOI: 10.2172/86901 | External Link
  • Office of Scientific & Technical Information Report Number: 86901
  • Archival Resource Key: ark:/67531/metadc793366

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  • August 1, 1995

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  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 29, 2016, 8:16 p.m.

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Sandbeck, K.A. & Cleveland, D. Microbial recovery of metals from spent coal liquefaction catalysts. Final and quarterly report, July 1994--September 1994, report, August 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc793366/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.