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首页> 外文会议>International Conference on Separation Science and Technology >Phase Behavior of Binary and Ternary Mixtures for Polydodecyl methacrylate and Dodecyl Methacrylate in Supercritical Fluid Solvents
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Phase Behavior of Binary and Ternary Mixtures for Polydodecyl methacrylate and Dodecyl Methacrylate in Supercritical Fluid Solvents

机译：二元和三元混合物对超临界流体溶剂中的多甲基丙烯酸甲酯的三元混合物和十二烷基甲基丙烯酸甲酯

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Experimental cloud-point curves for poly(dodecyl methacrylate) [P(DDMA)] + dodecyl methacrylate (DDMA) or dimethyl ether (DME) in supercritical CO2 show the binary and ternary mixtures up to 200 o C and 2,480 bar. The location of the P(DDMA) + CO2 cloud-point curve shifts to lower temperatures and pressures when DDMA or DME is used as a cosolvent. P(DDMA) does not dissolve in pure CO2 to the temperature of 220 °C and the pressure of 2,600 bar. High pressures phase behavior data is presented for the CO2 + DDMA system at 40 ~ 120 °C and up to ca. 252 bar. The system exhibit type-I phase behavior with a continuous mixture-critical curve and the system is adequately modeled with the Peng-Robinson equation of state. High pressure phase behavior data are reported for P(DDMA) in supercritical propane, propylene, butane, and 1-butene. Cloud-point curves for the P(DDMA) in C4 hydrocarbons are at lower temperatures than the P(DDMA) + C3 hydrocarbons curves at fixed pressures.
机译：超临界CO2中聚（十二烷基甲基丙烯酸甲酯）[P（DDMA）] +十二烷基酯（DDMA）或二甲基醚（DME）的实验浊点曲线显示出高达200℃和2,480巴的二元和三元混合物。当DDMA或DME用作共溶剂时，P（DDMA）+ CO2浊点曲线的位置转移到较低的温度和压力。 P（DDMA）不溶于纯二氧化碳至220°C的温度和2,600巴的压力。高压相行为数据在40〜120°C和高达CA的CO2 + DDMA系统中呈现。 252巴。系统具有连续混合临界曲线的I型相位行为，并且该系统与状态的鹏罗宾逊方程充分建模。将高压相行为数据报告用于超临界丙烷，丙烯，丁烷和1-丁烯的P（DDMA）。 C4烃中P（DDMA）的浊点曲线比在固定压力下的P（DDMA）+ C3碳氢化合物曲线下较低温度。

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