Microbial recovery of metals from spent coal liquefaction catalysts. Quarterly report, April--June 1994
The project objectives outlined in the previous reports involved defining conditions and cultures best suited to achieve the most effective metal release from spent coal liquefaction catalysts by microbial processes. Various microbiological and physiochemical parameters which may be important in microbial release of metals from spent coal liquefaction catalysts continue to be investigated so that this technology can be optimized. Molybdenum (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 are now centering on optimizing the parameters that stimulate microbial growth and action and further efforts will be centered on catalyst pre-treatment prior to microbial bio-leaching.
- Research Organization:
- Geo-Microbial Technologies, Inc., Ochelata, OK (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-92PC92119
- OSTI ID:
- 55305
- Report Number(s):
- DOE/PC/92119-T6; ON: DE95011383
- Resource Relation:
- Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microbial recovery of metals from spent coal liquefaction catalysts. Final and quarterly report, July 1994--September 1994
Microbial recovery of metals from spent coal liquefaction catalysts. Quarterly report, January 1994--March 1994