entrainer

简明释义

英[ɪnˈtreɪnə(r)]美[ɪnˈtreɪnər]

n. 夹带剂（形成共沸混合物的溶剂）

英英释义

单词用法

同义词

反义词

例句

1.The method comprises the following steps: the entrainer and concentrated sulfuric acid used as a catalyst are added into an esterification kettle at one time, and supplemented intermittently;

本发明方法包括夹带剂和催化剂浓硫酸一次性加入酯化釜，间歇补充；

2.The method comprises the following steps: the entrainer and concentrated sulfuric acid used as a catalyst are added into an esterification kettle at one time, and supplemented intermittently;

本发明方法包括夹带剂和催化剂浓硫酸一次性加入酯化釜，间歇补充；

3.It is emphatically discussed that the entrainer is applied for supercritical fluid extraction (SFE) of available components in tobacco, such as nicotine, solanesol and ethereal oil.

重点讨论了夹带剂在超临界萃取烟草中烟碱、茄尼醇、精油等有效成分中的应用。

4.Results showed that the extraction rate of supercritical CO2 fluid extraction with entrainer was about 1. 25 times as that of traditional solvent extraction.

结果表明，加夹带剂的超临界CO 2流体萃取法的提取率约提高为传统溶剂萃取法的1.25倍。

5.Entrainer enhancing technology can significantly improve the solanesol separation efficiency of supercritical CO_2 extraction.

夹带剂强化技术可显著提高超临界CO_2萃取茄尼醇的萃取效率。

6.The chemical process requires an entrainer to separate the desired product from impurities.

该化学过程需要一种助剂来将所需产品与杂质分离。

7.In the distillation column, the entrainer helps improve the separation efficiency of the components.

在蒸馏塔中，助剂有助于提高组分的分离效率。

8.The use of an entrainer can significantly reduce energy consumption in the separation process.

使用助剂可以显著降低分离过程中的能耗。

9.During the experiment, we added an entrainer to enhance the solubility of the target compound.

在实验过程中，我们添加了一种助剂以增强目标化合物的溶解度。

10.An effective entrainer can lead to higher yields in chemical reactions.

有效的助剂可以在化学反应中获得更高的产量。

作文

In the world of chemistry, the term entrainer refers to a substance that is used to facilitate the separation of components in a mixture. This process is crucial in various industrial applications, including the production of chemicals, pharmaceuticals, and even food products. The role of an entrainer can be likened to that of a guide in a complex maze; it helps navigate the intricate pathways of a chemical reaction or separation process. Understanding how entrainers work is essential for anyone involved in the fields of chemical engineering or industrial chemistry. To illustrate the significance of entrainers, consider the example of azeotropic distillation. In this process, a mixture of two or more liquids forms an azeotrope, which is a mixture that has a constant boiling point and composition throughout distillation. This can pose challenges in separating the desired component from the mixture. An entrainer is introduced to alter the volatility of one of the components, thereby breaking the azeotropic behavior and allowing for effective separation. For instance, in the production of ethanol, water forms an azeotrope with ethanol, making it difficult to obtain pure ethanol through simple distillation. By adding a suitable entrainer, such as benzene, the boiling point of the mixture changes, allowing ethanol to be separated more efficiently. This not only improves the yield but also enhances the purity of the final product, which is vital for its application in fuel and beverages. Moreover, the choice of an entrainer is critical. It must be compatible with the other components in the mixture and should not introduce harmful impurities into the final product. This requires a deep understanding of the chemical properties of the substances involved. Chemical engineers often conduct extensive research and experiments to determine the most effective entrainer for a given application. The use of entrainers is not limited to distillation processes. They are also employed in extraction and absorption techniques. For example, in liquid-liquid extraction, an entrainer can help to selectively dissolve one component from a mixture, making it easier to isolate and purify. This is particularly useful in the pharmaceutical industry, where the extraction of active ingredients from plant materials often requires precise and efficient methods. In conclusion, the concept of an entrainer is integral to the field of chemistry and chemical engineering. It serves as a pivotal element in various separation processes, enhancing efficiency and purity. Understanding the role of entrainers not only aids in the development of better industrial processes but also contributes to advancements in technology and sustainability. As industries continue to evolve, the importance of effective and innovative use of entrainers will undoubtedly grow, making it a key area of study for future chemists and engineers.

在化学领域中，术语entrainer指的是一种用于促进混合物中成分分离的物质。这个过程在各种工业应用中至关重要，包括化学品、药品甚至食品产品的生产。entrainer的作用可以比作复杂迷宫中的向导；它帮助导航化学反应或分离过程中的复杂路径。理解entrainers的工作原理对于任何参与化学工程或工业化学领域的人来说都是必不可少的。 为了说明entrainers的重要性，考虑一个共沸蒸馏的例子。在这个过程中，两种或多种液体的混合物形成共沸物，这是一种在蒸馏过程中具有恒定沸点和组成的混合物。这可能会导致从混合物中分离所需成分的挑战。引入entrainer以改变其中一种成分的挥发性，从而打破共沸行为，使有效分离成为可能。 例如，在乙醇的生产中，水与乙醇形成共沸物，使得通过简单蒸馏获得纯乙醇变得困难。通过添加合适的entrainer（如苯），混合物的沸点发生变化，从而更有效地分离乙醇。这不仅提高了产量，还增强了最终产品的纯度，这对其在燃料和饮料中的应用至关重要。 此外，entrainer的选择至关重要。它必须与混合物中的其他成分兼容，并且不应在最终产品中引入有害杂质。这需要对所涉及物质的化学性质有深刻的理解。化学工程师通常进行广泛的研究和实验，以确定给定应用中最有效的entrainer。 entrainers的使用不仅限于蒸馏过程。它们还用于萃取和吸收技术。例如，在液-液萃取中，entrainer可以帮助选择性地溶解混合物中的一种成分，从而更容易分离和纯化。这在制药行业中特别有用，因为从植物材料中提取活性成分通常需要精确和高效的方法。 总之，entrainer的概念是化学和化学工程领域不可或缺的一部分。它作为各种分离过程中的关键元素，提高了效率和纯度。理解entrainers的作用不仅有助于开发更好的工业过程，还促进了技术和可持续性的进步。随着工业的不断发展，entrainers的有效和创新使用的重要性无疑会增长，使其成为未来化学家和工程师研究的关键领域。