azeotropy

简明释义

英[ˌeɪzɪˈɒtrəpi]美[ˌeɪzɪˈɑːtrəpi]

n. 共沸性；恒沸性；共沸现象

英英释义

单词用法

同义词

反义词

例句

1.The halogen exchange method to prepare p fluoronitrobenzene under microwave irradiation and conventional heat was studied. Drying KF by azeotropy and microwave irradiation was proposed.

该文研究了微波辐射和常规加热下卤素交换氟化合成对氟硝基苯的方法，提出了共沸干燥和微波干燥制备无水KF的方法。

2.The halogen exchange method to prepare p fluoronitrobenzene under microwave irradiation and conventional heat was studied. Drying KF by azeotropy and microwave irradiation was proposed.

该文研究了微波辐射和常规加热下卤素交换氟化合成对氟硝基苯的方法，提出了共沸干燥和微波干燥制备无水KF的方法。

3.As the one of the preferred embodiment, the method USES hog still to remove water and aromatic hydrocarbon organic solvent azeotropy generated in the dehydration reaction.

作为优选的实施方式之一，使用蒸馏塔将在上述脱水反应中生成的水与芳香烃类有机溶剂共沸除去。

4.The possibility of unique azeotropy or polyazeotropy in a liquid mixture can be predicted using activity coefficient models in terms of boiling point calculation.

在存在共沸点的条件下，利用活度系数关联式， 通过泡点计算求出共沸条件。

5.The concept of azeotropy is crucial in distillation processes, where a mixture behaves like a single substance.

在蒸馏过程中，azeotropy的概念至关重要，因为混合物表现得像单一物质。

6.Understanding azeotropy can help chemists design more efficient separation techniques.

理解azeotropy可以帮助化学家设计更高效的分离技术。

7.In the production of ethanol, azeotropy occurs between ethanol and water, complicating purification.

在乙醇的生产中，乙醇和水之间发生了azeotropy，使得纯化变得复杂。

8.The azeotropy point of a liquid mixture can be determined through careful experimentation.

液体混合物的azeotropy点可以通过仔细实验来确定。

9.Engineers must account for azeotropy when designing systems for chemical reactions.

工程师在设计化学反应系统时必须考虑azeotropy。

作文

Azeotropes are fascinating mixtures that exhibit unique properties, particularly in the field of chemistry and distillation. An azeotropy is a specific type of mixture where two or more liquids combine in such a way that they cannot be separated by simple distillation due to their constant boiling point. This phenomenon occurs when the vapor produced by boiling has the same composition as the liquid phase, making it impossible to obtain pure components through standard separation methods. Understanding azeotropy is crucial for chemists and engineers alike, as it has significant implications in various industrial processes. One of the most common examples of an azeotropy is the ethanol-water mixture. When mixed in a certain ratio, these two liquids create a binary azeotropy at approximately 95.6% ethanol and 4.4% water by volume. At this composition, the mixture boils at a lower temperature than either of its components would alone, which can be quite counterintuitive. This means that if you were to attempt to distill this mixture to separate the ethanol, you would find that the vapor produced is still a mixture of both ethanol and water, rather than pure ethanol. This characteristic makes azeotropies particularly challenging for industries that rely on the purification of solvents and chemicals. The study of azeotropy opens up a realm of possibilities in improving separation techniques. For instance, understanding how to manipulate the conditions under which azeotropies form can lead to innovative methods for breaking these mixtures apart. Techniques such as adding a third component, known as an entrainer, can help in separating the components of an azeotropic mixture. This method is widely used in the production of high-purity ethanol, where a small amount of another substance is added to disrupt the azeotropic behavior, allowing for further distillation and purification. In addition to its practical applications, azeotropy also serves as an important concept in theoretical chemistry. It highlights the interactions between molecules in a mixture and how these interactions can lead to unexpected behaviors. The study of azeotropies can provide insight into molecular interactions, thermodynamics, and the principles of solution chemistry. For students and researchers, grasping the concept of azeotropy is essential for advancing their understanding of chemical systems and their applications. In conclusion, azeotropy represents a critical concept in the fields of chemistry and chemical engineering. Its unique characteristics challenge traditional separation methods and encourage innovation in industrial processes. As we continue to explore the complexities of chemical mixtures, the importance of azeotropy will undoubtedly remain at the forefront of scientific inquiry, paving the way for advancements in technology and efficiency in chemical production. By understanding and mastering the concept of azeotropy, we can unlock new avenues for research and application in a variety of fields, ultimately contributing to the development of more effective and sustainable practices in chemical engineering.

共沸物是具有独特性质的混合物，特别是在化学和蒸馏领域。azeotropy 是一种特定类型的混合物，其中两种或多种液体以某种方式结合，使得由于其恒定的沸点而无法通过简单的蒸馏分离。这种现象发生在沸腾产生的蒸气与液相具有相同的成分时，这使得通过标准分离方法获得纯组分变得不可能。理解 azeotropy 对于化学家和工程师来说至关重要，因为它在各种工业过程中具有重要的意义。 一个最常见的 azeotropy 的例子是乙醇-水混合物。当以一定比例混合时，这两种液体在大约 95.6% 乙醇和 4.4% 水的体积比下形成二元 azeotropy。在这种成分下，混合物的沸点低于其任何单独成分的沸点，这可能是相当违反直觉的。这意味着如果你试图蒸馏这个混合物以分离乙醇，你会发现产生的蒸气仍然是乙醇和水的混合物，而不是纯乙醇。这一特性使得 azeotropies 对于依赖溶剂和化学品纯化的行业尤其具有挑战性。 对 azeotropy 的研究开辟了改善分离技术的可能性。例如，了解如何操纵形成 azeotropies 的条件可以导致创新的方法来打破这些混合物。添加第三组分，称为助剂，可以帮助分离 azeotropic 混合物的组分。这种方法广泛应用于高纯度乙醇的生产中，其中添加少量其他物质以干扰 azeotropic 行为，从而允许进一步的蒸馏和纯化。 除了其实际应用，azeotropy 还作为理论化学中的一个重要概念。它突显了混合物中分子之间的相互作用，以及这些相互作用如何导致意想不到的行为。对 azeotropies 的研究可以提供对分子相互作用、热力学和溶液化学原理的深入了解。对于学生和研究人员来说，掌握 azeotropy 的概念对推进他们对化学系统及其应用的理解至关重要。 总之，azeotropy 代表了化学和化学工程领域中的一个关键概念。它的独特特性挑战了传统的分离方法，并鼓励工业过程中的创新。随着我们继续探索化学混合物的复杂性，azeotropy 的重要性无疑将继续处于科学研究的前沿，为化学生产中的技术和效率的进步铺平道路。通过理解和掌握 azeotropy 的概念，我们可以为化学工程各个领域的研究和应用打开新的途径，最终有助于开发更有效和可持续的化学工程实践。