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汉语拼音：jīng liú

使纯化，尤指通过重复蒸馏或分级蒸馏，有时还要加一些调味品。

精馏 [jīng liú]

1. 一种蒸馏法。蒸馏时，利用部分溜出液回流，以提高溜出液中低沸点成分的操作，效果相当于多次简单的蒸馏，可提高各组成分的分离程度。多应用在石油、化学、冶金等工业上。

• Using conventional distillation, the separated yields of benzene, ethylbenzene and cumene were all over 95%.

  后续常规精馏塔分离的馏出物中，异丙苯、乙苯和苯浓度均可达到95%以上。

• in place of the reboiler , a heating coil may be placed in the bottom of the column to generate vapor from the pool of liquid there.

  例如可以在精馏塔的底部安装一个加热盘管代替再沸器，加热釜液产生蒸汽。

• By the addition of an umbrella-shaped baffle above the feed sprayer in the column, the liquid entrainment from the column can be diminished.

  在精馏塔进料喷头上方增设伞形档板，可以减少精馏塔带液量。更详细。

• The invention relates to a trichlorosilane differential pressure coupling rectification system and an operation method thereof.

  本发明是三氯氢硅差压耦合精馏系统及操作方法。

• Simulation of an acrylonitrile extractive distillation column demonstrated the efficiency of the proposed method.

  通过对某丙烯腈萃取精馏塔的稳态仿真，充分证实了这种模型化方法的优越性。

• The continual photocatalytic chlorination and chlorination-rectification methods can be adopted for side-chain chlorination process.

  侧链氯化可采用连续光催化氯化和氯化精馏法；

• The solution was the addition of potassium permanganate in condensation zone of rectification tower to improve the quality of alcohols.

  可在精馏塔的浓缩区域添加高锰酸钾来提高酒精质量。

• In this paper a comprehensive fuzzy evaluation (CFE) model was used for choosing the solvents.

  本文提出一个模糊综合评判模型用于萃取精馏溶剂的选择。

• The advantages of heterogeneous batch distillation proccess make it widely used in separation of systems with azeotrope .

  非均相间歇共沸精馏广泛地应用于共沸物系的分离。