azeotropic distillation造句

• Progress on the studies of heterogeneous batch azeotropic distillation
  非均相间歇共沸精馏研究进展
• Azeotropic distillation column condenser
  共沸蒸馏塔冷凝器
• Azeotropic distillation column reboiler
  共沸蒸馏塔再沸器
• Process research on separating aqueous isopropanol with batch azeotropic distillation
  间歇恒沸精馏法分离异丙醇水溶液的过程研究
• Surface active agents and soaps - determination of water content - azeotropic distillation method
  表面活性剂和肥皂含水量的测定共沸蒸馏法
• Surface active agents and soaps . determination of water content . azeotropic distillation method
  表面活性剂和肥皂.水分含量的测定.共沸蒸镏法
• A process of salt extraction with azeotropic distillation for extractlower water ethanol from fusel oil
  杂醇油加盐萃取精馏提取低水乙醇的研究
• Preparation of fe3 - doped tio2 nanopowders by the coprecipitation - azeotropic distillation method and its photocatalytic properties
  2纳米粉体及其光催化性能
• Bitumen and bituminous binders - determination of water content in bitumen emulsions - azeotropic distillation method
  沥青和硬沥青粘合剂.乳化沥青中水含量的测定.共沸蒸馏法
• Bitumen and bituminous binders - determination of water content in bitumen emulsions - azeotropic distillation method ; german version en 1428 : 1999
  沥青和沥青粘合剂.沥青乳液中水含量的测定.共沸蒸馏
• Azeotropic distillation stage and dehydration with alcohols can prepare nanocry stalline powders with extremely small crystallite size ( 40nm )
  共沸蒸馏干燥法和无水乙醇置换干燥法均能制备50nmal _ 2o _ 3粉体。
• A topic of great practical and particular industrial interest in recent years has been three - phase azeotropic distillation or heteroazeotropic distillation
  非平衡模型作为一种新的更严格的建模方法正是在这种情况下而发展起来。
• Methods of test for petroleum and its products - bitumen and bituminous binders - determination of water content in bitumen emulsions - azeotropic distillation method
  石油及石油产品的试验方法.沥青和沥青粘合剂.沥青乳液中的水含量的测定.恒沸点蒸馏分析法
• For heterogeneous azeotropic distillations , three phases , one vapour phase and two liquid phases , can coexist . the existence of the second liquid phase could change the hydrodynamic behaviour and therefore influence the separation efficiency
  对三相共沸精馏过程而言，一个汽相和两个液相形成汽液液三相共存现象，第二个液相会或多或少地改变精馏过程的流体力学特性并最终影响过程的传质分离效率。
• This paper introduces several separation technologies for alcohol - water system , which include not only traditional azeotropic distillation and extraction distillation , but also new membrane separation techniques , such as membrane distillation , pervaporation and membrane contactor
  摘要主要介绍了醇水体系分离的几种工艺和新方法，其中包括传统的恒沸精馏和萃取精馏等主流工艺，以及膜蒸馏、渗透汽化和膜接触器等新型膜分离技术。
• The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated . due to the non - ideal behavior , nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system . concerning the liquid in the decanter , the stability is checked by tangent plane stability analysis , and the initialization of phase splitting calculation is produced . a good estimate of the phase fration is gotten by successive substitution with newton ' s method , and every component of two phase is gotten by mass equilibrium equation . finally , the solution of this equation is produced with successive substitution calcultion . the naphtali - sandholm method is used to simulation of azeotropic distillation . by virtue of this combined calculation method , the simulation is begun with operational data as basical data . the results of simulation accord with the operating data , which proved that the combined calculation method is credible
  该体系具有高度非理想性，气液相平衡模型采用nrtl - hoc和uniquac - hoc模型，采用切平面判据法对进入分层器中的液相进行液相稳定性测试，提供液液相分离计算的初值，再结合牛顿拉夫森迭代法运算求得相分割系数，根据物料衡算求出各相组成，循环迭代可求得分层各组分数据，共沸精馏模拟计算采用那夫塔列-山德荷姆全变量迭代算法。
• 6 c is contrast to the literature data . the lle data of the system measured at 40 c , which is correlated in virtue of nrtl or uniquac equation . the correlated parameters are used to the simulation of azeotropic distillation process . in addition , the vle data of the system acetic acid - water - n - butyl acetate at 1 atm from literature are correlated by virtue of nrtl - hoc and uniquac - hoc model , and the parameters are also used to azeotropic distillation simulation . by tint of a kind of computer language matlab , the binary parameters is correlated , stability of original liquid is checked , liquid - phase splitting calculation and simulation of heterogeneous azeotropic distillation are performed
  自制了液液平衡釜，实验测得24 . 6时乙酸-水-乙酸异丙酯液液相平衡数据与文献数据吻合，验证了平衡釜的可靠性，测定了40时此体系的液液相平衡数据，对40实验数据进行了uniquac方程和nrtl方程参数的拟合；利用uniquac - hoc模型和nrtl - hoc模型，对乙酸-水-乙酸丁酯体系三元相平衡体系相平衡数据的进行拟合，得到水-乙酸丁酯间uniquac方程和nrtl方程的二元交互作用参数。
• The results showed that controlling ph value and increasing ? potential can improve the dispersal of powders and finally enhance the gas - sensitivity of a - fe2c3 sensor . the study of the microstructure and properties of gas - sensitivity for the prepared powders also exhibited that azeotropic distillation and sol - gel method can competently prevent the formation of hard agglomeration , and so good sensitivity is obtained
  结果表明，在碱性较强的条件下，电位较大，易制得团聚少、比表面较大的纳米粉体；共沸蒸馏和sol - gel后处理方法能有效防止粉体的硬团聚，有利于提高其元件的灵敏度。
• The optimum technic conditions have been gotten in in preparaing high dispersive a1 ( oh ) 3 colloid by controlling reactant concentration , ph value , reaction temperature , matured time . they are the prereguisite to prepare nanopoder of a - a1203 . this paper entirely and systematically studies the following three kinds of drying stages : oven drying , dehydration with alcohols and azeotropic distillation stage
  本文采用逐步逼近法进行了氢氧化铝胶体的沉降实验，对胶体形成的体系反应物的初始浓度、体系的ph值、反应温度和胶体的陈化时间进行了系统优化，并获得了制备高分散氢氧化铝胶体的最佳工艺参数；此胶体经过过滤、 80下烘干后所得样品，在扫描电镜下直接观察其粒径为50nm ，且分布范围窄，颗粒的表面清洁，为球形。
• The influence of packing height , ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail . simulation calculations of general distillation and azeotropic distillation were carried out . the influence of reflux ratio , theoretical plate , feed position , feed temperature and feed concentration to distillation process were discussed
  ( 3 )与普通精馏比较，分离要求相同时，共沸精馏时所需要的理论板数要低于普通精馏所需要的理论板数，回流比减小，可降低设备投资70万元，塔釜加热量减少36 % 。