fly ash – TechConnect Briefs

Alumina extraction from fly ash by the MgO sintering method: Waste reduction and utilization

Zhao L., Sun Q., Wang B., Wang X., Wang B., Wang X., Xiao Y., Yu G., Liu X., Zhang Z., National Institute of Clean-and-low-carbon Energy (NICE), CN

In recent years, many methods for the alumina extraction from fly ash have been tested, developed and demonstrated in China. Generally, alkali sintering methods are more easily deployed than acid leaching methods, but it is [...]

Alumina extraction from fly ash by the MgO sintering method: Waste reduction and utilization

Zhao L., Sun Q., Wang B., Wang X., Wang B., Wang X., Xiao Y., Yu G., Liu X., Zhang Z., National Institute of Clean-and-low-carbon Energy (NICE), CN

In recent years, many methods for the alumina extraction from fly ash have been tested, developed and demonstrated in China. Generally, alkali sintering methods are more easily deployed than acid leaching methods, but it is [...]

Preparation and Characterization of nZnO/fly ash Composite

Ayanda O.S., Fatoki O.S., Adekola F.A., Ximba B.J., Cape Peninsula Univerty of Technology, ZA

Composite material involving fly ash and nZnO was prepared by dispersion technique. The nature, morphology and the properties of the precursors and the composite were determined and compared by scanning electron microscopy, surface area determination [...]

Concrete with reduced Portland Cement Clinker Content for Pavements and Transportation Structures

Stein B., Kramer B., Ryan R., Twining, Inc., US

The paper discusses advantages, particularly with respect to CO2 emission reduction, of the replacement of relatively large fractions of Portland cement in concrete mix designs utilized in pavements and structures, with industrial byproducts and natural [...]

Sorption of Carbon Dioxide at High Temperatures by Slag

Tseng T.K., Chun K.L., Chu H., Chun K.L., National Cheng Kung University, TW

After industrial revolution, the increases of CO2 concentration in the atmosphere are resulted from the consumption of huge amounts of fossil fuels; hence causes global climate changes including temperature increasing and ocean level rising. Technologies [...]

Sorption of Carbon Dioxide at High Temperatures by Slag

Tseng T.K., Chun K.L., Chu H., Chun K.L., National Cheng Kung University, TW

After industrial revolution, the increases of CO2 concentration in the atmosphere are resulted from the consumption of huge amounts of fossil fuels; hence causes global climate changes including temperature increasing and ocean level rising. Technologies [...]

Extracting unburnt coal from black coal fly ash

Kusnierova M., Fecko P., Slovac Academy of Science, SK

Black-coal fly ash from Kosice Power Plant in Slovakia contains between 22 and 25 % of unburnt coal, which is , strictly speaking, a useful component. Studying optimal separation methods of unburnt coal from the [...]

Extracting unburnt coal from black coal fly ash

Kusnierova M., Fecko P., Slovac Academy of Science, SK

Black-coal fly ash from Kosice Power Plant in Slovakia contains between 22 and 25 % of unburnt coal, which is , strictly speaking, a useful component. Studying optimal separation methods of unburnt coal from the [...]