vacuum distillation

简明释义

真空蒸馏

英英释义

例句

1.The process of vacuum distillation is often used to purify heat-sensitive compounds without decomposition.

使用真空蒸馏的过程通常用于在不分解的情况下净化热敏感化合物。

2.The laboratory employs vacuum distillation 真空蒸馏 to obtain high-purity solvents.

实验室采用真空蒸馏来获得高纯度的溶剂。

3.We utilize vacuum distillation 真空蒸馏 to extract essential oils from plants at lower temperatures.

我们利用真空蒸馏以较低的温度从植物中提取精油。

4.During the manufacturing of perfumes, vacuum distillation 真空蒸馏 is crucial for preserving fragrance integrity.

在香水制造过程中，真空蒸馏对保持香气的完整性至关重要。

5.In the oil industry, vacuum distillation 真空蒸馏 helps separate heavier fractions from crude oil.

在石油工业中，真空蒸馏有助于从原油中分离出较重的馏分。

作文

Vacuum distillation is a significant process in the field of chemistry and chemical engineering, where it plays a crucial role in the separation and purification of liquids. This technique involves the reduction of pressure above a liquid, allowing it to boil at a lower temperature than it would under normal atmospheric conditions. The primary advantage of vacuum distillation (真空蒸馏) is that it prevents thermal decomposition of sensitive compounds, which can occur at higher temperatures. This makes it an essential method for purifying heat-sensitive materials such as essential oils, pharmaceuticals, and various organic compounds.In the process of vacuum distillation (真空蒸馏), the apparatus typically consists of a distillation flask, a vacuum pump, and a condenser. The distillation flask contains the mixture to be separated, and the vacuum pump is used to create a low-pressure environment. As the pressure decreases, the boiling point of the liquid mixture also decreases, allowing components with lower boiling points to vaporize and separate from those with higher boiling points. This process can be particularly useful in industries where preserving the integrity of the product is paramount.The applications of vacuum distillation (真空蒸馏) are vast and varied. In the petroleum industry, for instance, it is employed to separate heavier fractions of crude oil into more valuable products like gasoline and diesel. These heavier fractions, which would otherwise decompose at high temperatures, can be effectively distilled when subjected to a vacuum. Similarly, in the pharmaceutical industry, vacuum distillation (真空蒸馏) is often used to purify active ingredients without compromising their efficacy.Furthermore, vacuum distillation (真空蒸馏) is not limited to industrial applications; it is also utilized in laboratory settings for research purposes. Chemists often use this technique to isolate specific compounds from complex mixtures. For example, when synthesizing new drugs, researchers may need to remove solvents or other byproducts that could interfere with the desired chemical structure. By using vacuum distillation (真空蒸馏), they can achieve a high level of purity while maintaining the stability of sensitive molecules.Moreover, the environmental impact of vacuum distillation (真空蒸馏) is relatively low compared to other separation methods. It often requires less energy because the process operates at lower temperatures, which can lead to decreased carbon emissions. This makes it an attractive option for companies looking to reduce their ecological footprint while still achieving efficient separation processes.In conclusion, vacuum distillation (真空蒸馏) is a vital technique in both industrial and laboratory settings, providing a means to separate and purify sensitive compounds without the risk of thermal degradation. Its applications span across various fields, including petrochemicals and pharmaceuticals, making it an indispensable tool for chemists and engineers alike. Understanding the principles and advantages of vacuum distillation (真空蒸馏) is essential for anyone involved in the chemical sciences, as it highlights the importance of innovative techniques in the pursuit of purity and efficiency in chemical processes.

真空蒸馏是化学和化学工程领域的重要过程，在液体的分离和纯化中起着至关重要的作用。这种技术涉及降低液体上方的压力，使其在比正常大气条件下更低的温度下沸腾。真空蒸馏的主要优点是防止热敏感化合物在较高温度下发生热降解。这使得它成为提纯热敏感材料（如精油、药品和各种有机化合物）的一种基本方法。在真空蒸馏的过程中，设备通常由蒸馏烧瓶、真空泵和冷凝器组成。蒸馏烧瓶内含有待分离的混合物，真空泵用于创建低压环境。随着压力的降低，液体混合物的沸点也降低，使得沸点较低的组分能够蒸发并与沸点较高的组分分离。这一过程在保护产品完整性至关重要的行业中尤为有用。真空蒸馏的应用广泛而多样。例如，在石油工业中，它被用来将原油的重组分分离成更有价值的产品，如汽油和柴油。这些重组分如果在高温下处理会发生降解，但在真空环境下可以有效蒸馏。同样，在制药行业，真空蒸馏常用于在不损害有效成分的情况下进行纯化。此外，真空蒸馏不仅限于工业应用；它也在实验室环境中用于研究目的。化学家们经常使用这种技术从复杂混合物中分离特定化合物。例如，在合成新药物时，研究人员可能需要去除溶剂或其他副产品，以免干扰所需的化学结构。通过使用真空蒸馏，他们可以在保持敏感分子稳定性的同时实现高纯度。此外，与其他分离方法相比，真空蒸馏的环境影响相对较低。由于该过程在较低温度下运行，通常需要更少的能量，这可以减少碳排放。这使得它成为希望在实现高效分离过程中减少生态足迹的公司的一个有吸引力的选择。总之，真空蒸馏在工业和实验室环境中都是一种重要的技术，提供了一种在不风险热降解的情况下分离和纯化敏感化合物的方法。它的应用跨越了多个领域，包括石油化工和制药，使其成为化学家和工程师不可或缺的工具。理解真空蒸馏的原理和优点对于任何参与化学科学的人来说都是至关重要的，因为它突出了在追求化学过程中的纯度和效率时创新技术的重要性。