Combined glassification of EAF dust and incinerator fly ash.
Stainless steelmaking dust contains large amount of heavy metals, such as Cr and Ni. If these hazardous materials are not treated properly, they will cause detrimental secondary contamination. Preliminary study on recycling stainless steelmaking dust employed the thermal molten technology. Glass-ceramics were formed by combination stainless steel dust and incinerator fly ash with the ratio of 1:9. The major phases were Augite, Akermanite, and Donathite. It was found that the glass-ceramics shows the best characteristic at 900 degrees C after 5 h of heat treatment. This product can be used as building materials or refractory materials.
Cheng
T W
TW
Department of Materials & Mineral Resources Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Rd, Taipei 106, Taiwan. twchen@ntut.edu.tw
D002244:Carbon / Q000737:chemistry*; D060729:Coal Ash; D004391:Dust; D005898:Glass / Q000737:chemistry*; D017745:Incineration; D008422:Materials Testing; D019216:Metals, Heavy / Q000737:chemistry; D052638:Particulate Matter; D012037:Refuse Disposal / Q000379:methods*; D013193:Stainless Steel / Q000737:chemistry*
D060729:Coal Ash; D004391:Dust; D019216:Metals, Heavy; D052638:Particulate Matter; D013193:Stainless Steel; D002244:Carbon