Internal Coating of Oil Refining Pipes with Alumina from the Recycling Process of Aluminum Anodizing

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The aluminum anodizing is a used technique used to produce decorative and protective film of high quality. This anodizing process results in a large volume of industrial sludge, containing amounts of aluminum hydroxide colloidal problematic for these industrial waste disposal due to the environmental impact. This study aims to accomplish the treatment of these residues, which were thermally sintered at temperatures of 200 °C, 1000 °C and 1400 °C. After the heat treatment, the residues were subjected to analysis of X-ray diffraction and X-ray fluorescence. In evaluating these results, there was a gradual increase of the percentage of alumina at 1400 °C to achieve 95%. With the acquisition of the ceramic high alumina content, the objective is the fabrication of refractory linings for pipes used in the oil refining process. And this study will serve to solve an environmental problem arising from the metallurgical industry and simultaneously presenting an alternative material for the industry.

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367-372

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November 2016

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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