Conversion of coal wastes into waste-cleaning materials. Quarterly progress report, April 1, 1996--June 30, 1996

Technical Report · Tue Oct 01 00:00:00 EDT 1996

DOI:https://doi.org/10.2172/383056· OSTI ID:383056

Shih, Wei-Heng

Work on this project has concentrated on studying fly ash provided by PECO Energy. This ash has a composition, 52 wt% SiO{sub 2}, 30 wt% Al{sub 2}O{sub 3}, 10 wt% Fe{sub 3}O{sub 4}, and others. Previously, we have shown that this particular ash, which will be called Eddystone I, can be converted to faujasite and zeolite A at 38{degrees} C curing. In the last three months, we began to investigate whether the same treatment procedure can be applied to other ashes. Ashes from three different power plants were solicited and studied. In order to overcome the problem of wide variation in composition, a general approach needs to be found to treat different ashes. We adopted a fusion method that combines NaOH and silicon source more efficiently than simple dissolution of silicate in NaOH solution.

• Research Organization: Drexel Univ., Philadelphia, PA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-94PC94215
• OSTI ID: 383056
• Report Number(s): DOE/PC/94215-T7; ON: DE96050439
• Resource Relation: Other Information: PBD: 1996
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COAL
COMBUSTION PRODUCTS
FLY ASH
CHEMICAL COMPOSITION
ZEOLITES
SYNTHESIS
PROGRESS REPORT
FAUJASITE
FOSSIL-FUEL POWER PLANTS
SODIUM HYDROXIDES
CURING
SODIUM SILICATES
BARIUM OXIDES
ALUMINIUM OXIDES
IRON OXIDES
SILICON OXIDES
X-RAY DIFFRACTION
SCANNING ELECTRON MICROSCOPY
WASTE PRODUCT UTILIZATION
EXPERIMENTAL DATA