Effect of Apparent Porosity on Generation of Hexavalent Chromium Compounds in Refractories Including Cr_2O_3 for Waste Melting Furnace

摘要

There is a concern that hexavalent chromium compound is generated in Cr_2O_3 refractories after use at waste melting furnace. In this study, the sintered objects including Cr_2O_3 of apparent porosity varied was made and the effect of apparent porosity on hexavalent chromium compound generation was investigated. As a result, it lead to the suggestion that the effect of apparent porosity on hexavalent chromium compound generation was small and that the effect of Cr_2O_3 content in refractories was strong.