Study of Spent Refractory Waste Recycling from Metal Manufacturers in Missouri
There are over 150 metal related companies in Missouri that discard approximately 7500 metric tons of spent refractories annually. Nearly all ( 99%) of the refractories are landfilled wasting valuable natural resources. The purpose of this research is to minimize the refractory wastes being landfilled by studying the types and quantities of spent refractories generated by these companies, the states of these wastes, and technologies for recycling and reusing them. Conducting this study in Missouri is ideal because it has a diverse group of metals (lead, aluminum, steel and copper) manufacturers and the results, therefore, should be applicable to other regions of the US and of the world. This paper reviews previously identified techniques for recycling refractory materials, summarizes data from informational surveys of metals manufacturers in the state, and highlights potential barriers to, and opportunities for, spent refractory recycling. Results from the surveys indicated that two large waste streams exist in Missouri and that identifying and implementing recycling of these two waste streams would dramatically reduce the quantity of spent refractories landfilled annually.
H. Fang et al., "Study of Spent Refractory Waste Recycling from Metal Manufacturers in Missouri," Resources, Conservation and Recycling, Elsevier, Feb 1999.
The definitive version is available at http://dx.doi.org/10.1016/S0921-3449(98)00059-7
Materials Science and Engineering
Keywords and Phrases
Recycling; Reusing; Spent Refractories; Wastes
Article - Journal
© 1999 Elsevier, All rights reserved.