The residual oil obtained by vacuum distillation of crude.
原油经减压蒸馏所得的残余油。
Such as: vacuum distillation, evaporation, dehydration, crystal, drying in the process.
如：真空蒸馏、蒸发、脱水、结晶、干燥等工艺过程中。
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。
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。
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；
Such as: vacuum distillation, evaporation, dehydration, crystallization, drying and other processes.
如：真空蒸馏、蒸发、脱水、结晶、干燥等工艺过程中。
As an example, CPDRS was applied and examined in atmospheric and vacuum distillation unit of refinery.
以CPDRS在常减压炼油装置的应用为例，介绍了CPDRS系统考核与应用情况。
The process flow sheet of vacuum distillation of Bi-Ag-Zn crust was drawn up, and its rationality was argued.
拟定了真空蒸馏铋银锌壳制取粗银、粗铋和粗锌的工艺流程，并论证了该流程的合理性。
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。
Purifying selenium by vacuum distillation. Metal selenium purification is on the base of different elemental volatility.
真空蒸馏提纯硒利用元素的挥发性不同进行金属硒的提纯。
Therefore, vacuum distillation thick cadmium in theoretically feasible, the operating condition is also easy to realize.
因此，真空蒸馏粗镉在理论上可行的，操作条件也容易实现。
There is much low from atmospheric and vacuum distillation unit, but only a small amount is used, resulting in heat loss.
常减压装置低温余热较多。利用较少，造成热量损失。
Experiment results indicated that the vacuum distillation by using two flask vacuum collectors can make product yield higher.
实验证明采用双瓶采集的真空间歇精馏操作能得到较高的产品收率。
The corrosion prevention played a vital role in ensuring the long-term operation of the atmospheric-vacuum distillation unit.
常减压装置的防腐蚀工作对于其长周期运行极为重要。
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。
A comparison is given on the technology gap between domestic atmospheric and vacuum distillation unit and the foreign advanced unit.
将我国常减压蒸馏装置的技术水平与国外先进水平进行了对比。
Then the zone refine is also discussed, and shows that zone refine can produce higher purity antimony on the basis of vacuum distillation.
在分析真空蒸馏的同时将区域提纯进行了理论分析，证明利用区域提纯技术可以在真空提纯的基础上制备纯度更高的金属锑。
The results showed that the heavy metal cadmium could be effectively separated by vacuum distillation to produce high purity cadmium (>99%).
实验结果表明：利用真空蒸馏可以实现镍镉电池中镉与其它金属的有效分离，并得到纯度大于99%的金属镉；
The silver-rich lead came from the continuous crystallizer is then subjected to vacuum distillation, yielding silver bullion of over 80% Ag.
连续结晶器得到的富银铅采用真空蒸馏获得含银>80%的粗银。
Connection to crude assay. Jt can provide data of crude's property for atmospheric and vacuum distillation simulation or directly by cut module.
与原油评价库的连接，为常减压蒸馏模拟或直接通过切割模块提供原油性质数据。
The author presents some considerations on pipe rack, structure and transfer line of large scale crude atmospheric and vacuum distillation unit.
分析了大型化的常减压装置平面布置的设计考虑，并具体讨论了装置管廊、框架、转油线等方面的设计看法。
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。
Vacuum distillation using the dropper with the exhaust port and the access protection tube to prevent leakage of liquid directly into the vacuum pump.
减压蒸馏使用带抽气口和防护滴管的接液管，可以防止液体直接泄露到真空泵中。
The products were gained by vacuum distillation from reaction liquid, meanwhile their qualitative and quantitative analysis were carried out by GC-MS.
反应结束后反应液经过真空蒸馏后得到产物，并通过GC - MS进行定性和定量分析。
This product has been used for cleaning oil fouling for beat exchanger of atmospheric and vacuum distillation unit, catalytic cracking unit in refinery.
该产品已应用于炼油厂常减压及催化裂化等装置中换热设备油污垢的清洗。
The serious corrosion problem at low temperature could be found in atmospheric-vacuum distillation unit, especially in the atmosphere overhead condenser.
常减压装置存在较为严重的低温位腐蚀问题，尤其是常压塔顶冷凝器腐蚀问题更为严重。
Mixed diisopropyl benzene was chose as the materials to compose high purity resorcinol by shape selective catalysis decomposition and vacuum distillation.
以混合二异丙苯为原料经择形催化裂解和减压蒸馏，制备了高含量的间二异丙苯。
A new technique has been researched on the feasibility and regularity for removing impurities from rude selenium by vacuum distillation in theory analysis.
从理论上分析了采用真空蒸馏的方法将粗硒提纯除杂的可行性和规律性。
A new technique has been researched on the feasibility and regularity for removing impurities from rude selenium by vacuum distillation in theory analysis.
从理论上分析了采用真空蒸馏的方法将粗硒提纯除杂的可行性和规律性。
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