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함티탄자철광 Slag 의 유동층 염소화에 의한 TiCl4 의 제조
송기영,이상순,이철태 ( Ki Young Song,Sang Soon Lee,Chul Tae Lee ) 한국공업화학회 1993 공업화학 Vol.4 No.1
국내 부존 함티탄자철광으로부터 염화티타늄(TiCl_4)을 제조키 위해 함티탄자철광의 arc-smelting으로부터 얻어지는 titanium slag의 유동층 염소화 반응을 조사하였다. Titanium slag의 유동층 염소화반응에 적절한 반응조건은 반응 온도 950℃, 반응시간 90분, 염소가스의 유속 3.0 ㎝/sec, titanium slag에 대한 petroleum coke의 무게비 0.18, 그리고 titanium slag 및 petroleum coke의 입자의 평균직경은 각각 44.6㎛, 67.9㎛였다. 위 조건하에서 titanium slag중의 97.07%의 티타늄이 염소화되었으며 제조된 염화티타늄(TiCl_4)의 순도는 96.2%였다. The chlorination of the titanium slag from titaniferrous magnetite by the arc-smelting in a fluidized bed reactor was investigated to produce TiCl_4, from domestic titaniferrous magnetite. The optimum conditions are as follows:reaction temperature ; 950℃, reaction time ,90min, Cl_2 gas velocity ; 3 ㎝/sec, and petroleum coke-to-titanium slag weight ratio , 0.18. Also the mean diameter of titanium slag and petroleum coke was 44.6㎛ and 67.9㎛ respectively. Under these conditions, 97.07% of Ti component in the titanium slag was chlorinated and the purity of TiCl_4 from this chlorination was 96.2% .
송기영,김경택,정성혜,Song, Ki-Young,Kim, Kyoung-Taek,Jung, Sung-Hae 한국전기전자재료학회 2004 전기전자재료학회논문지 Vol.17 No.6
A microstrip filter has been designed and fabricated in hairpin form on a GaAs substrate and its characteristics such as the insertion loss, return loss, and bandwidth have been investigated. The presented filter is realized with relatively small size, 4.5 by 3.6 mm. The insertion loss and return loss of the filter are 1.17 dB and 30 dB, respectively. The filter exhibits 3 dB-bandwidth of 350 MHz at the center frequency, 5.890 GHz. The experimental results show good agreement with the numerical ones. However, the measured center frequency is about 100 MHz higher than the designed one.
함티탄자철광 Slag의 유동층 염소화에 의한 TiCl<sub>4</sub>의 제조
송기영,이상순,이철태,Song, Ki-Young,Lee, Sang-Soon,Lee, Chul-Tae 한국공업화학회 1993 공업화학 Vol.4 No.1
국내 부존 함티탄자철광으로부터 염화티타늄($TiCl_4$)을 제조키 위해 함티탄자철광의 arc-smelting으로부터 얻어지는 titanium slag의 유동층 염소화 반응을 조사하였다. Titanium slag의 유동층 염소화반응에 적절한 반응조건은 반응 온도 $950^{\circ}C$, 반응시간 90분, 염소가스의 유속 3.0cm/sec, titanium slag에 대한 petroleum coke의 무게비 0.18, 그리고 titanium slag 및 petroleum coke의 입자의 평균직경은 각각 $44.6{\mu}m$, $67.9{\mu}m$였다. 위 조건하에서 titanium slug 중의 97.07%의 티타늄이 염소화 되었으며 제조된 염화티타늄($TiCl_4$)의 순도는 96.2%였다. The chlorination of the titanium slag from titaniferrous magnetite by the arc-smelting in a fluidized bed reactor was investigated to produce $TiCl_4$ from domestic titaniferrous magnetite. The optimum conditions are as follows : reaction temperature; $950^{\circ}C$, reaction time; 90min, $Cl_2$ gas velocity; 3cm/sec, and petroleum coke-to-titanium slag weight ratio; 0.18. Also the mean diameter of titanium slag and petroleum coke was $44.6{\mu}m$ and $67.9{\mu}m$ respectively. Under these conditions 97.07% of Ti component in the titanium slag was chlorinated and the purity of $TiCl_4$ from this chlorination was 96.2%.