| Feature, Problem find the Hereafter of Chrome-Containing Refractory |
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Akira Yamaguchi |
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Okayama Ceramics Research Foundation |
| 크롬계 내화물의 특징과 문제점 및 장래 |
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야마구치아키라 |
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강산세라믹스 기술진흥재단연구소 |
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| Abstract |
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One of characteristic of $Cr_2O_3-containing$ refractory is excellent resistance to corrosion. However, there is a problem that hexa-valent chromium, which is noxious to the human body, is easily formed by reaction between the refractory and slag with CaO, $Na_2O$ and/or $K_2O$. In this article, the reason why the $Cr_2O_3-containing$ refractory has excellent corrosion resistance qualities, he conditions under which hexa-valent chromium formed, methods for suppressing generation of hexa-valent chromium and the possibility of the refractory components excluding $Cr_2O_3$ for the furnace are described as a base of development of further excellent refractories. |
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