Recovery of exhaust magnesium sands: Reclamation plant design and cost analysis

B. Ruffino and M.C. Zanetti

Resources, Conservation & Recycling, 2007, vol. 51, issue 1, 203-219

Abstract: At present about 1200t/year (the 45% b.w. of the solid waste production) of exhaust sands utilized for moulds and cores in the magnesium casting operations of a foundry plant in Northern Italy are landfilled. In fact, these sands cannot be subjected to the usual process of thermal regeneration because of the presence of potassium fluoborate, a salt which becomes plastic at high temperature values and binds silica grains in close heaps.

Keywords: Magnesium; Exhaust sands; Wet treatment; Potassium fluoborate; Reclamation (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:51:y:2007:i:1:p:203-219

DOI: 10.1016/j.resconrec.2006.09.005

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