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CO_2-苯-长链烷基苯-[Bmim]Br-AlCl_3四元体系相平衡测定

Determination of Phase Equilibrium of the System CO_2-Benzene-LABs-[Bmim]Br-AlCl_3
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摘要 利用静态分析法,在40℃、0.10—10.60MPa条件下考察了CO2-苯-1-十二烷基苯-[Bmim]Br-A1Cl3、CO2-苯-1-十四烷基苯-[Bmim]Br—AICl3、CO2-苯-1-十六烷基苯-[Bmim]Br—AICl3三种四元体系的相态并测定了相平衡数据,比较了长链烷基苯的分配系数(长链烷基苯在底部液相中的质量分数与其在中间相中质量分数的比值)随压力变化的规律。结果表明:加入CO2促进了长链烷基苯在离子液体中的溶解。在40℃、8.10MPa条件下,CO2-苯-1-十二烷基苯-[Bmim]Br—AICl3体系有新中间液相生成;随着长链烷基苯链长的增加,底部液相由液相逐渐转变为固相。在40℃、8.10MPa条件下,1-十二烷基苯、1-十四烷基苯的分配系数接近1.0;在40℃、4.00MPa条件下,1-十六烷基苯的分配系数接近1.0。 Static-analytic method was adopted to determine the phase behavior of CO2 -benzene - LABs - [ Bmim ] Br-AlCl3 at 40 ℃ under 0. 10 - 10. 60 MPa. Effect of pressure on the distribution coefficient of LABs( long-chain alkylbenzenes) was discussed. The results demonstrated that CO2 was helpful to enchance solubility of LABs in [ Bmim] Br-AlCl3. At 40 ℃ under 8, 10 MPa,a new middle liquid phase emerged in the system CO2 - benzene - dodecylbenzene - [ Bmim ] Br-AlCl3. With the increasing of chain length of LABs in the system, the bottom liquid phase was converted from liquid to solid state. Distribution coefficients of dodecylbenzene and tetradecylbenzene reached 1.0 at 40 ℃ Under 8.10 MPa,and that of hexadecylbenzene did so at 40 ℃ under 4. 00 MPa.
出处 《精细化工》 EI CAS CSCD 北大核心 2008年第10期1037-1040,共4页 Fine Chemicals
基金 国家自然科学基金项目(20490209)~~
关键词 长链烷基苯 [Bmim]Br-AIC13 CO2 相平衡 benzene LABs [ Bmim ] Br-AlCl3 CO2 phase equilibrium
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  • 1Yadav G D, Purandare S A. Vapor phase alkylation of toluene with 2-propanol to cymenes with a novel mesoporous solid acid UDCT-4 [ J ]. Microporous Mesoporous Mater,2007,103 ( 1 ) :363 - 372.
  • 2Devassy B M, Lefebvre F, Halligudi S B. Zirconia-supported 12- tungstophosphoric acid as a solid catalyst for the synthesis of linear alkyl benzenes[ J]. J Catal,2005,231 (1): 1- 10.
  • 3孙学文,赵锁奇.FeCl_3-氯代丁基吡啶离子液体催化苯与丙烯烷基化[J].石油化工,2006,35(9):819-823. 被引量:13
  • 4Xin Hong-liang,Wu Qin, Han Ming-han. Alkylation of benzene with 1-dodecene in ionic liquids [ Rmim] + Al2Cl6X( R - butyl, octyl and dodecyl; X = chlorine, bromine and iodine ) [ J ]. Appl Catal A ,2005,292:354 - 361.
  • 5Decastro C, Sauvage E, Valkenberg M H. Immobilised ionic liquid as Lewis acid catalysts for the alkylation of aromatic compounds wilh dodecene[ J]. J Catal,2000,196 ( 1 ) :86 -94
  • 6Qiao Kun, Deng You-quan. Alkylations of benzene in room temperature ionic liquids modified with HC1 [ J ]. J Mol Catal A : Chem,2001,171 ( 1 ) :81 - 84.
  • 7Bonhote P, Dias. A P, Papageorgiou N. Hydrophobic highly conductive ambient-temperature molten salts [J]. Inorg Chem, 1996,35(5) :1168 - 1178.

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