【摘要】 本文主要对TiO₂与TiCl₄在1050℃～1450℃的化学反应做了初步探讨。首先利用已知化合物及未知中间化合物TiOCl₂·TiCl₄在一个温度下的G°试验值推算了此未知化合物在其他温度下的等温等压位,在此基础上利用TQ—16计算机计算了高温下TiO₂+3TiCl₄2（TiOCl₂·TiCl₄）反应平衡时,产物中TiOCl₂·TiCl₄分压值。计算结果表明这一反应在1000℃～1500℃范围内气体大分子产物TiOCl₂·TiCl₄的分压值很低,反应不能自动由左向右进行;其次利用试剂纯TiO₂与TiCl₄在1050℃～1450℃下的实验室实验,根据TiO₂的减重量,验证了推算的结果。更多还原

【Abstract】 A preliminary study has been carried out on chemical reaction between TiO₂ and TiCl₄ at the temperature range of 1050-1450℃. The Gibbs free-energy of unknown complex TiOCl₂·TICl₄ at a given temperature range have been estimated according to the Gibbs free-energy of known compounds such as TiCl₄ and TiO₂ and that of experimantal values for this complex at the fixed temperature Based upon this estimation the equilibrium partial pressure for TiOCl₂·TICl₄ has been calculated on a TQ-16 computer.The results of calculation show that the partial pressure of large voiatile moIecules of TiOCl₂ ·TiCl₄ which are produced by this reaction at the temperature range of 1000-1500℃ is very small and thus the reaction could not move from the lefthand side to the righthand side automatically. The estimated values have been verified based on the weight reduction of chemical pure TiO₂ after its reaction with TiCl₄ at 1050—1450℃.更多还原