Journal of the Korean Industrial and Engineering Chemistry, Vol.8, No.3, 446-453, June, 1997
금홍석으로부터 이온교환에 의한 Potassium Octatitanate Whisker의 합성
Synthesis of Potassium Octatitanate Whisker from Natural Rutile Ore using the Ion Exchange Reaction
초록
광물인 금홍석과 공업용 K2CO3를 사용하여 1000℃, 3시간 그리고 K2O에 대한 금홍석의 몰비 2.0의 조건으로 초생상을 합성하였으며, 이를 비등수로 10시간 처리하여 중간상인 층상 구조의 사비탄산칼륨을 합성하였다. 그리고 중간상을 0.005M의 염산으로 30분 동안 처리하여 KHTi4O9·1.1H2O를 얻었으며, 이를 400∼600℃의 온도범위에서 열처리하여 길이 10㎛, 직경 0.2㎛의 팔티탄산칼륨을 합성하였다.
The initial product was prepared by heating for 3 hrs at 1000℃ using a mixture of the rutile sand and industral K2CO3 in the molar ratio 2.0. And the intermediate product, fibrous potassium tetratitanate of layer structure, was obtained by the boiling water treatment of 10hrs for initial product using the calcination method. Also KHTi4O9·1.1H2O was synthesized by ion exchange reaction through the acid treatment for 30 min at 0.005M HCl solution and then K2Ti8O17 whisker of length=10㎛, diameter=0.2㎛ was synthesized by heat treatment at temperature range of 400∼600℃.
- Fujiki Y, Komatsu Y, Ohta N, Chem. Lett., 1023 (1980)
- Sasaki T, Komatsu Y, Fujiki Y, Chem. Lett., 957 (1981)
- Fujiki Y, Komatsu Y, Sasaki T, Yogyo-Kyokai-Shi, 94, 313 (1986)
- Fujiki Y, Izumi F, Yogyo-Kyokai-Shi, 85, 155 (1977)
- Shimizu T, Yogyo-Kyokai-Shi, 85, 2567 (1977)
- Shimizu T, Yogyo-Kyokai-Shi, 86, 339 (1978)
- Lee CT, Choi US, Kim YM, J. Korean Ind. Eng. Chem., 5(1), 160 (1994)
- Lee CT, Kim SW, Lee JS, Kim YM, Kwon KT, J. Korean Ind. Eng. Chem., 5(3), 478 (1994)
- Lee CT, Lee JS, Lee SM, Park YS, J. Korean Ind. Eng. Chem., 6(6), 997 (1995)
- Anderson S, Wadsley AD, Nature, 187, 499 (1960)
- Watanabe M, Watanabe E, J. Solid Chem., 32, 233 (1980)
- Patarin J, Marchand R, Acad CR, Sci. Paris. Ser. II, 300, 667 (1985)