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Title: Metal removal from coal ashes and wastes

Abstract

Laboratory-scale tests and preliminary engineering economic analyses have been performed to evaluate several processes for the recovery of aluminum and other metals from fly ash. Preliminary tests have also been made on two coal conversion ashes. The processes examined include: direct acid leach, lime-sinter, lime-soda sinter, and two new sinter-leach processes (calsinter and salt-soda sinter). The Calsinter process involves sintering with limestone and gypsum or flue gas desulfurization sludge at 1000 to 1200/sup 0/C, followed by sulfuric acid leaching. Each of the new sinter-leach processes recovers more than 95% of the aluminum along with substantial percentages of the other metals present. The recovered metals can be converted to a number of potentially saleable products.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5899224
Report Number(s):
CONF-790499-2
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Conference
Resource Relation:
Conference: American Society of Civil Engineers Power Research Council/Electric Power Research Institute workshop, San Diego, CA, USA, 23 Apr 1979
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 01 COAL, LIGNITE, AND PEAT; ALUMINIUM OXIDES; RECOVERY; FLY ASH; CHEMICAL COMPOSITION; WASTE PRODUCT UTILIZATION; ARSENIC; BARIUM; BENCH-SCALE EXPERIMENTS; CADMIUM; CHROMIUM; COAL GASIFICATION PLANTS; COAL LIQUEFACTION PLANTS; DRINKING WATER; ECONOMICS; EQUIPMENT; FEASIBILITY STUDIES; FLOWSHEETS; FOSSIL-FUEL POWER PLANTS; GYPSUM; HAZARDOUS MATERIALS; IRON; LEACHING; LEAD; LIMESTONE; MANGANESE; RAW MATERIALS; RESIDUES; RESOURCE RECOVERY ACTS; SCRUBBERS; SELENIUM; SEPARATION PROCESSES; SILVER; SINTERING; SLUDGES; SODIUM CARBONATES; SODIUM CHLORIDES; STANDARDS; TEMPERATURE DEPENDENCE; TITANIUM; URANIUM; ACTINIDES; AEROSOL WASTES; ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; ALKALINE EARTH METALS; ALUMINIUM COMPOUNDS; CALCIUM COMPOUNDS; CALCIUM SULFATES; CARBON COMPOUNDS; CARBONATE ROCKS; CARBONATES; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; DIAGRAMS; DISSOLUTION; ELEMENTS; FABRICATION; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INDUSTRIAL PLANTS; LAWS; METALS; MINERALS; OXIDES; OXYGEN COMPOUNDS; POLLUTION CONTROL EQUIPMENT; POWER PLANTS; RESERVOIR ROCK; ROCKS; SEDIMENTARY ROCKS; SEMIMETALS; SODIUM COMPOUNDS; SULFATES; SULFUR COMPOUNDS; THERMAL POWER PLANTS; TRANSITION ELEMENTS; WASTES; WATER; 320305* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management; 010800 - Coal, Lignite, & Peat- Waste Management

Citation Formats

Canon, R. M., Kelmers, A. D., McDowell, W. J., Seeley, F. G., and Watson, J. S. Metal removal from coal ashes and wastes. United States: N. p., 1979. Web.
Canon, R. M., Kelmers, A. D., McDowell, W. J., Seeley, F. G., & Watson, J. S. Metal removal from coal ashes and wastes. United States.
Canon, R. M., Kelmers, A. D., McDowell, W. J., Seeley, F. G., and Watson, J. S. 1979. "Metal removal from coal ashes and wastes". United States. https://www.osti.gov/servlets/purl/5899224.
@article{osti_5899224,
title = {Metal removal from coal ashes and wastes},
author = {Canon, R. M. and Kelmers, A. D. and McDowell, W. J. and Seeley, F. G. and Watson, J. S.},
abstractNote = {Laboratory-scale tests and preliminary engineering economic analyses have been performed to evaluate several processes for the recovery of aluminum and other metals from fly ash. Preliminary tests have also been made on two coal conversion ashes. The processes examined include: direct acid leach, lime-sinter, lime-soda sinter, and two new sinter-leach processes (calsinter and salt-soda sinter). The Calsinter process involves sintering with limestone and gypsum or flue gas desulfurization sludge at 1000 to 1200/sup 0/C, followed by sulfuric acid leaching. Each of the new sinter-leach processes recovers more than 95% of the aluminum along with substantial percentages of the other metals present. The recovered metals can be converted to a number of potentially saleable products.},
doi = {},
url = {https://www.osti.gov/biblio/5899224}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Conference:
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