原油经减压蒸馏所得的残余油。
用萃取法代替减压蒸馏法分离中间物方便、可靠。
The separation of intermediate using distillation under vacuum was replaced by extraction method. It was convenient and reliable.
进行了石蜡油的减压蒸馏实验，得到了恩氏蒸馏曲线。
The reduced pressure distillation experiment on the liquid paraffin was done and the Engler distillation curve was obtained.
本文介绍适用于干式减压蒸馏的特殊结构真空抽气设备。
This paper introduced a new type and special structured vacuum pump unit suitable for dry type reduced-pressure distillation.
本发明涉及一种带有减压闪蒸塔的常减压蒸馏方法及设备。
The invention relates to an atmospheric and vacuum distillation device with a vacuum flash tower and a method thereof.
介绍了济钢焦化厂焦油常、减压蒸馏的工艺流程、生产实践。
The process flow and production practice of air-distillation and reduced-pressure distillation for tar in Jigang coking plant are introduced.
某厂常减压蒸馏装置的实际应用结果表明了该方法的有效性。
The application results in a crude unit show that this method is valid.
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。
A comparison is given on the technology gap between domestic atmospheric and vacuum distillation unit and the foreign advanced unit.
溶液减压蒸馏，在残留物中加入100毫升水和12毫升醋酸。
The solvent was evaporated under reduced pressure and water (100 ml) and acetic acid (12 ml) were added to the residue.
顶空法富集的芳香成分中酯类化合物含量较减压蒸馏富集法高。
The headspace gathered more ester compounds in aroma composition than that of reduced pressure distillation.
产物通过减压蒸馏纯化，以三氯化磷计，总收率达87.4%。
The product was purified by distillation in vacuum. The total yield was 87.4% based on PCl_3.
介绍对某炼油厂常减压蒸馏装置加热炉空气预热系统的两次改造情况。
Two revampings of air preheater of fired heater in atmospheric-vacuum distillation unit of a refinery was introduced.
乳酸经减压蒸馏制得单体丙交酯，再以氧化锌为催化剂聚合得到聚乳酸。
Lactide monomer was obtained by vacuum distillation of lactic acid. After purification by recrystallization, the lactide was polymerized to polylactic acid with zinc oxide as the catalyst.
根据故障树分析理论，用演绎法建立了常减压蒸馏装置常压塔的失效故障树。
The failure tree for atmospheric tower is established with deductive method based on the theory of failure tree analysis.
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。
Vacuum distillation using the dropper with the exhaust port and the access protection tube to prevent leakage of liquid directly into the vacuum pump.
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。
Connection to crude assay. Jt can provide data of crude's property for atmospheric and vacuum distillation simulation or directly by cut module.
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。
Mixed diisopropyl benzene was chose as the materials to compose high purity resorcinol by shape selective catalysis decomposition and vacuum distillation.
分析加工高酸值原油常减压蒸馏装置管道腐蚀的特点，探讨其主要管道的选材原则。
Analyze features of corrosion of pipeline for high acidic crude oil of atmospheric and vacuum distillation unit, probe major principle for selection of piping material.
主要介绍了常减压蒸馏装置油水分离器内部结构由第一代改进到第三代的详细情况。
The revamp of internal construction of oil water separator in atmospheric-vacuum distillation unit from first generation to the third generation is detailed.
离子液体通过减压蒸馏可被分离出来，重复使用10次后仍表现出较好的催化活性。
Ionic liquid could be conveniently separated by vacuum distillation and reused for 10 times with good catalytic activity.
另外，工艺上的平稳操作以及设备的精心维护等确保常减压蒸馏装置实现了两年一修。
In addition, the stable operation and good maintenance of equipment make it possible to have one overhaul...
减压蒸馏深拔受原油热稳定性和减压塔真空度等操作条件的制约，是个复杂的系统工程。
Deep vacuum distillation, being restricted by operating conditions such as the heat stability of crude and the vacuity of vacuum tower etc., is a complicated system engineering.
真空泵是减压蒸馏的核心部分，根据待蒸馏化合物的沸点和化合物的用途，选用适当的真空泵。
Vacuum pump is a vacuum distillation of the core of the compounds according to the boiling point to be distilled and compound use, choose the appropriate pump.
新型液体分布器已应用到温度高、液量小、物系脏、易结焦的原油减压蒸馏塔洗涤段的改造中。
The new liquid distributor has been already applied in revamping of the washing zone in crude vacuum distillation tower with high temperature, small flowrate, dirt and easy-coking material.
本论文拟探讨一条适宜于工厂化生产的减压蒸馏提取洋葱油的工艺，以提高洋葱油的得率和质量。
This article is to be discussed at a factory for the production by decompressing distillation process to extract onion oil, in order to improve the yield and quality.
探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。
The advantage and disadvantage of the five recycling methods, direct heating, direct aqueous vapor, indirect aqueous vapor, reduced pressure distillation, precipitation method, is discussed.
某石化公司常减压蒸馏装置常压炉炉管已经超过设计寿命，有必要对其进行全面的检测和安全评定。
The atmospheric furnace tubes of the atmospheric-vacuum distillation unit in a petrochemical company had been operating beyond their service life.
提供一种减压蒸馏方法以及减压蒸馏装置，其抑制蒸馏锅内的突沸， 回收不含杂质的高纯度溶剂。
A vacuum distillation method and a vacuum distillation device are disclosed, for inhibiting frothover in a distillation boiler and recycling high pure solvent in free of impurities.
产品通过三种方式得到：（1）滤液减压蒸馏，溶剂回收，残留物稀释于冷水或冰水中，过滤得到；
The products are obtained by three means: (1) decompressing and distilling the filtrate, recovering the solvent, diluting the residual in the cold water or ice water and filtering;
产品通过三种方式得到：（1）滤液减压蒸馏，溶剂回收，残留物稀释于冷水或冰水中，过滤得到；
The products are obtained by three means: (1) decompressing and distilling the filtrate, recovering the solvent, diluting the residual in the cold water or ice water and filtering;
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