Power plant fly ash as a resource for alumina and cement

Conference · Mon Dec 31 23:00:00 EST 1979

OSTI ID:5170805

Murtha, M J; Burnet, G

A sinter process has been developed to form soluble aluminate compounds from mixtures of fly ash, limestone, and soda ash. The aluminates are extracted, treated to remove silicates, and precipitated; the precipitate is calcined to metallurgical grade alumina. The extract residue shows promise as a raw material for the production of Portland cement. Process economics are presented, and the effects of alumina and silica contents of the fly ash, sintering temperatures and time, and sales credits for by-products are discussed.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5170805
• Report Number(s): IS-M-289; CONF-800802-15
• 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
ALKALI METAL COMPOUNDS
ALUMINATES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ASHES
BUILDING MATERIALS
CALCINATION
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
CEMENTS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DATA FORMS
DECOMPOSITION
ECONOMICS
ELECTRIC UTILITIES
FLY ASH
FORECASTING
FOSSIL-FUEL POWER PLANTS
INFORMATION
IRON ORES
LIMESTONE
MATERIALS
NUMERICAL DATA
ORES
OXIDES
OXYGEN COMPOUNDS
POWER PLANTS
PUBLIC UTILITIES
PYROLYSIS
RAW MATERIALS
RECOVERY
RESIDUES
ROCKS
SEDIMENTARY ROCKS
SODIUM CARBONATES
SODIUM COMPOUNDS
TABLES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTE PRODUCT UTILIZATION
WASTES