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首页> 外文期刊>The Journal of Chemical Thermodynamics >Measurement and correlation of solubility of anthraquinone dyestuffs in supercritical carbon dioxide
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Measurement and correlation of solubility of anthraquinone dyestuffs in supercritical carbon dioxide

机译:蒽醌染料在超临界二氧化碳中的溶解度测定与相关

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Solubility data of 1,4-diaminoanthraquinone (C.I. Disperse Violet 1) and 1,4-bis(ethylamino)anthraquinone (C.I. Solvent Blue 59) in supercritical carbon dioxide (sc-CO_2) have been measured at the temperatures of (323.15, 353.15, and 383.15) K and over the pressure range from (12.5 to 25.0) MPa by a flow-type apparatus. The solubility of two anthraquinone dyestuffs was obtained over the mole fraction ranges of (1.3 to 26.1) ? 10~(-7) for 1,4-diaminoanthraquinone (C.I. Disperse Violet 1) and (1.1 to 148.5) ? 10~(-7) for 1,4-bis(ethylamino)anthraquinone (C.I. Solvent Blue 59). The experimental results have been correlated with the empirical equations of Mendez-Santiago-Teja and Kumar-Johnston expressed in terms of the density of sc-CO_2, and also analyzed thermodynamically by the regular solution model with the Flory-Huggins theory and the Peng-Robinson equation of state modified by Stryjek and Vera (PRSV-EOS) with the conventional mixing rules. Good agreement between the experimental and calculated solubilities of the dyestuffs was obtained.
机译:在(323.15,353.15)的温度下测量了1,4-二氨基蒽醌(CI分散紫1)和1,4-双(乙基氨基)蒽醌(CI溶剂蓝59)在超临界二氧化碳(sc-CO_2)中的溶解度数据;和383.15)K,并且通过流动型设备在(12.5至25.0)MPa的压力范围内。在摩尔分数范围为(1.3-26.1)≤1.0的范围内获得了两种蒽醌染料的溶解度。 1,4-二氨基蒽醌(C.I.分散紫1)和(1.1至148.5)的10〜(-7)? 1,4-双(乙基氨基)蒽醌(C.I.溶剂蓝59)的10〜(-7)。实验结果与以sc-CO_2的密度表示的Mendez-Santiago-Teja和Kumar-Johnston的经验方程式相关,并且还采用了Flory-Huggins理论和Peng-Hardins的正解模型对热力学进行了分析。用常规混合规则由Stryjek和Vera(PRSV-EOS)修改的Robinson状态方程。在染料的实验和计算的溶解度之间获得了良好的一致性。

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