| Autor: |
Fang, H., Smith, J. D., Peaslee, K. D. |
| Předmět: |
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| Zdroj: |
Resources, Conservation & Recycling. Feb1999, Vol. 25 Issue 2, p151. 0p. |
| Abstrakt: |
Approximately 7500 t of spent refractories are landfilled annually in Missouri. Research was initiated to reduce the amount landfilled bystudying the types and quantities of spent refractories generated, the conditions of the wastes, and technologies for recycling and reusing spent refractories. This paper reviews the characterization results from three major spent refractory waste streams in Missouri and evaluates beneficiation and recycling. The results indicate considerablepromise in reusing spent doloma refractories as a soil conditioner and spent alumino silicate refractories as a raw material for production of Portland cement. The amount of spent refractory wastes landfilled in Missouri could be reduced by an estimated 50% if these techniques were adopted. Attempts to recycle spent high alumina refractories as aggregates for castables are also discussed. (c) 1999 Elsevier Science B.V. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full Text from ScienceDirect