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KMID : 1059520180620060433
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Journal of the Korean Chemical Society
2018 Volume.62 No. 6 p.433 ~ p.440
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Study on Recycling Technology of Waste Artificial Marble using Starch
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Ryoo Keon-Sang
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Abstract
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The pyrolysis has been universally applied to recycle the waste artificial marble. However, the existing heat treatment equipment has relatively low heat transfer efficiency into the inner part of the waste artificial marble. Besides, it leads to unnecessary excessive gas during the partial carbonization of the polymethyl methacrylate (PMMA) and raises the risk of fire due to heat at an extremely high temperature. This study suggests the process of pyrolysis at the formation state after adding the starch to waste artificial marble to overcome above-mentioned problems. As the result of experiments, this method showed that the pyrolysis of waste artificial marble was greatly improved at comparatively low temperature condition of 350 oC. Moreover, it also manifested the effect on securing the stability and energy savings necessary for the recovery of methyl methacrylate (MMA) and α-alumina (α-Al2O3).
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KEYWORD
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Waste artificial marble, Pyrolysis, Heat transfer, PMMA, α-alumina
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