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The composition adsorption isotherms (ya~xg curve) for acetone-n-hexane, benzene-n-hexane, toluene-n-hexane and n-pentance-n-hexane vapor mixtures on silica gel with different surface coverage (θ) at 25℃ were measured. The experimental results indicated that the ya ~ xg curves approached gradually down to corresponding binary liquid-vapor equllibrium curves with increasing of surface coverage. Therefore, the binary adsorbed phases are similarly with the binary liquid phase. Except for acetone-n-hexane system, which had a minimum boiling point, the composition adsorption isotherms of the other three binary systems could be simulated by equation of relative volatility. 相似文献
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二组分气体在固体上吸附的研究(IV) 总被引：1，自引：2，他引：1
测定了丙酮－正己烷、甲苯－正己烷、苯－正己烷、正戊烷－正己烷四个二组分气体在部分石墨化的灯黑上的吸附等温线,并测定了单组分气体吸附等温线．对比了上述四个二组分气体,分别在硅胶、硅烷化硅胶和灯黑上吸附的十二个吸附体系的吸附规律．结果表明,二组分气体在吸附剂上的竞争吸附的强弱,基本上可以通过它们的纯组分气体在吸附剂上第一层吸附热Q1数值的大小加以预测． 相似文献
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