Paper Titles
Microstructural Control of 7075 Al Wrought Alloys through Thixoextrusion Route
p.362
Thermal and Phase Evolutions of As-Milled Powders Fabricated by Mechanical Alloying in the TiH2-C System
p.366
H2S/CO2 Corrosion Behavior of Tubular Goods under High Temperature and High Pressure
p.370
Improved Heat and Corrosion Resistance of Mg-Al-Zn Alloys by Additions of Minor Alloying Elements
p.374
Characteristics of Spent Foundry Sand - Loess Mixture as Ceramic Support Materials
p.378
The Transfection Efficacy of Chitosan-DNA Nanoparticles on MGC803, SMMC-7721, MG63 Cells
p.382
Characteristic Evaluation of Extrusion Parameters on Direct Extrusion Process of 3003 Al Alloy Used for Automotive Condenser Tubing
p.386
Vacuum Diffusion Brazing of Al5052 Alloys Using Ag-28Cu Insert Metal
p.390
Morphological Evolution of Primary Solid Phase in Semi-Solid Slurry during the Isothermal Holding
p.394

Characteristics of Spent Foundry Sand - Loess Mixture as Ceramic Support Materials

Article Preview

Abstract:

Spent foundry sand (SFS) from cast iron industry mixed with loess was characterized to recycle spent foundry sand as ceramic support materials. Since SFS mostly consists of sand including binding agents and residue [1], it was used as permeable media, and loess, which has highly adsorptive and reactive properties, was used as support materials Leaching tests such as Korean Leaching Test (KLT) and TCLP (Toxicity Characteristics Leaching Procedure) showed that spent foundry sands from cast iron industry were not hazardous. Turbidity in furan sand was much higher than that in other sands, and turbidity was almost not changed with increasing amount of loess. The order of ORP (oxidation-reduction potential) in spent foundry sands was green sand > furan sand > CO2 sand. ORP was decreased with the amount of sand in furan sand and CO2 sand but was increased with the amount of sand in green sand. Hence, mixture of SFS and loess can be used as ceramic support materials with reductive or oxidative capability.

You might also be interested in these eBooks
Eco-Materials Processing & Design VII View Preview

Info:

Periodical:

Materials Science Forum (Volumes 510-511)

Pages:

378-381

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.510-511.378

Citation:

Cite this paper

Online since:

March 2006

Authors:

Seung Whee Rhee, Woo Keun Lee

Keywords:

Leaching Test, Loess, Oxidation-Reduction Potential (ORP), Spent Foundry Sand, Support Material, Turbidity

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Taeyoon Lee, Craig H. Benson, Gerald R. Eykholt, Journal of Hazardous Materials, B109, 2536, (2004).

Google Scholar

[2] Seung-Whee Rhee, Se Il Yang, Sam Yong Choi, Hyong Whee Yoon, A Study on Turbidity ans ORP of the Mixture of Foundry sand and Loess, Proceeding of the 2004 Spring Conference of the Korea Society of Waste Management, 111-114, (2004).

Google Scholar

[3] Ricardo Magnani Andrade, Sergio Cava, Sidiney Nascimento Silva, Luiz Edmundo Bastos Soledade, Claudia C. Rossi, Edson RobertoLeite, Carlos Alberto Paskocimas, Jose Arana Varela, Elson Longo, Journal of Materials Processing Technology, 159, 125-134, (2005).

DOI: 10.1016/j.jmatprotec.2003.10.021

Google Scholar

[4] Samira Gourari, Abdellatif Achkari-Begdouri, Applied Clay Science, 12, 365-375, (1997).

DOI: 10.1016/s0169-1317(97)00019-7

Google Scholar

[5] Maria Chiara Zanetti, Silvia Fiore, Resources, Conservation and Recycling, 38, 243-254, (2002).

Google Scholar