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- Deep vacuum distillation 减压深拔
- It is a guide for the vacuum deep cut revamping on atmospheric and vacuum distillation unit. 结果表明对常减压装置减压深拔技术改造有一定的指导意义。
- Inflammable ether was not used and vacuum distillation was omitted. 不使用易燃性乙醚作溶剂,省略高真空蒸馏。
- Setting up the vacuum distillation apparatus for the Essential Oils experiment. (Photo by Chemistry laboratory staff. 为了做精油实验而搭建的真空蒸馏装置(摄影：化学实验室职员)。
- The purifcation of Dy, Ho and Er metals has been studied by the method of vacuum distillation. 本文研究了金属镝、、的真空蒸馏提纯效果。
- Fatty acid is made from spent material in production of ricinus oil by acidification, washing, and vacuum distillation. 蓖麻油下脚料经酸化水洗，减压蒸馏等工序分离制取脂肪酸。
- This paper discuss the technology of separating zinc-tin alloy to recover zinc and tin by vacuum distillation. 研究了真空蒸馏法分离废杂锌锡合金回收锌锡金属的工艺。
- The combined vacuum distillation and melt crystallization technology was used to purify DDHI from artificial musk. 通过减压精馏-熔融结晶耦合技术研究提高人造麝香(DDHI)含量的原理和工艺流程。
- The refined product with high purity is obtained by vacuum distillation of crude benzal chloride. 将制得的苄叉二氯粗品进行真空精馏得到高纯度的精品;
- Atmospheric distillation,vacuum distillation and azeotropic distillation processes were used to separate 1,2-dichloropropane from the waste liquor. 采用常压精馏、减压精馏、共沸精馏工艺分离环氧丙烷生产废液中的1,2-二氯丙烷。
- These higher boiling components will be removed by vacuum distillation of the provided sample to permit facile gas chromatographic separation. 为了能顺利地进行气相色层分离，可以对所提供的样品进行真空蒸馏，把较高沸点的混合物除去。
- You will separate the carvone from the higher-boiling and lower-boiling impurities (such as limonene), via a vacuum distillation. 你将会通过真空蒸馏法，把香芹酮中较高沸点和较低沸点的杂质(如柠檬烯)分离开。
- The results showed that the separation of vacuum distillation was preferable,and the content of thiodiglycol can reach 99.77 %. 结果表明:减压蒸馏法是一种行之有效的分离方法;利用减压蒸馏可得到含量高达99.;77%25的硫代二甘醇。
- This model austerely simulating dynamic action of vacuum distillation unit, and the dynamic curve of Vacuum's sidetrack from feed-in to static state. 该模型严格地模拟了减压精馏塔的动态行为,模拟了稳态下进料发生变化时减压精馏塔中各塔板上液相浓度变化的曲线。
- Energy diagnosis on atmospheric and vacuum distillation unit with enormous energy consumption is done by using pinch technology. 利用夹点技术理论对耗能严重的某炼油厂常减压蒸馏装置进行用能诊断分析;
- The industrial antifoulant injected into the vacuum residue system in 1995 has enabled the long term running of vacuum distillation unit. 在减压渣油泵的入口注入工业防垢剂,取得了较好的结果。
- The paper summarized the principle of Molecule distillation technology and the difference from the general vacuum distillation. 阐述了分子蒸馏的基本原理及其区别于普通真空蒸馏的主要特点。
- Some advantages such as energy saving, lighter color of rosin, lower oil content and lower crystallizing tendency were described for the vacuum distillation of oleoresin. 介绍了松脂减压蒸馏具有节能、松香色浅、含油量低、不易结晶等优点,同时介绍了生产操作过程中的控制要点。
- In rotary evaporation a vacuum distillation apparatus is used to remove bulk solvents from a sample. Typically the vacuum is generated by a water aspirator or a membrane pump. 在旋转蒸发中，使用真空蒸馏设备将大量的溶剂从样品内除去。真空由水抽子或隔膜泵产生。
- Aloin A and aloe emodin were separated by vacuum distillation and purification, and designed orthogonal experiment to find out the best experimental conditions. 设计正交实验,用乙醇水溶液回流溶出芦荟甙,用减压蒸馏的方法得到产品,并找出最佳反应条件。
