Evaluation of potential processes for recovery of metals from coal ash. Volume 2. Laboratory data and cost estimates. Final report

Technical Report · Sun Nov 01 04:00:00 EST 1981

OSTI ID:5863726

Canon, R M; Gilliam, T M; Watson, J S

An experimental campaign was carried out to develop process flowsheets for the removal of metals from fly ash and their subsequent separation into saleable products. The capital cost requirements for processing 1 million tons of ash (dry basis) per year were $42.5 million and $55 million, respectively, for the two most promising processes, HCl direct acid leach and pressure digestion-acid leach. The net yearly cash flow for the HCl direct acid leach process was $15.2 million, which makes it a viable option. The pressure digestion-acid leach process, on the other hand, had a negative cash flow of $22 million, which makes it unattractive.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5863726
• Report Number(s): EPRI-CS-1992-Vol.2; ON: DE82005592
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AEROSOL WASTES
ASHES
CAPITAL
COST
DIAGRAMS
DISSOLUTION
ELEMENTS
FLOWSHEETS
FLY ASH
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEACHING
MANAGEMENT
MATERIALS RECOVERY
METALS
PROCESSING
RECOVERY
RESIDUES
SEPARATION PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES