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Journal of the Korean Ceramic Society 1995;32(1): 71. |
| 수열반응에 의한 인공점토의 합성연구(I) 강화도산 백운모질 풍화 화강암의 수열처리 |
| 이응상, 이상훈 |
| 한양대학교 무기재료공학과 |
| A Study on the Hydrothermal Synthesis of Clay Mineral(I) Hydrothermal Treatment of the Weathered Two-Mica Granite in Kang Wha district of Korea |
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| ABSTRACT |
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The weathered two-mica granite is widely distributed in Korea and called a kind of ground rock for kaolin. The major minerla compositions are consist of this quartz, feldspar, mica and clay mineral. At present, only a small portion of this granite is used as the material for the low-grade tile industry due to the low S.K. value and the high contents of impurities such as Fe2O3 and FeO. The low S.K. value is caused by feldspars not weathered to clay minerals. The refinement of this thus has been required for the recent shortage of the resources of high-grade one. This paper concerns an optimum hydrothermal treatment condition to refine the low-grade weathered two-mica granite of which impurities are feldspar mineral and Fe2O3. FeO components in using for the main material of ceramic industry. And then, from this result, we tried to fine out the basic formation mechanism of clay mineral from feldspar etc and develope the effectual utilization method of this. |
| Key words:
Hydrothermal synthesis, Clay mineral |
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