molecular distillation

简明释义

分子蒸馏

英英释义

例句

1.Researchers are exploring molecular distillation 分子蒸馏 as a method to recycle valuable solvents.

研究人员正在探索分子蒸馏作为回收有价值溶剂的方法。

2.One advantage of molecular distillation 分子蒸馏 is its ability to operate at lower temperatures.

分子蒸馏的一个优点是它能够在较低的温度下运行。

3.In the pharmaceutical industry, molecular distillation 分子蒸馏 is crucial for obtaining pure active ingredients.

在制药行业中，分子蒸馏对获得纯净的活性成分至关重要。

4.The food industry utilizes molecular distillation 分子蒸馏 to extract flavors without altering their properties.

食品工业利用分子蒸馏提取风味而不改变其特性。

5.The process of molecular distillation is often used to purify high-value compounds from natural sources.

过程中的分子蒸馏通常用于从天然来源中提取高价值化合物。

作文

Molecular distillation is a specialized technique used in the separation of substances based on their molecular weights. This method is particularly valuable in the field of chemistry and biochemistry, where the purity of compounds can significantly influence the results of experiments and applications. The process of molecular distillation (分子蒸馏) involves heating a liquid to create vapor and then cooling that vapor to create a liquid again. What distinguishes this technique from traditional distillation is the low pressure under which it operates. By reducing the pressure, the boiling points of the substances are lowered, allowing for the separation of heat-sensitive materials without degradation.The principle behind molecular distillation (分子蒸馏) is rooted in the concept of mean free path. In a gas, the mean free path is the average distance a molecule travels before colliding with another molecule. At low pressures, the mean free path increases, allowing molecules to travel longer distances without colliding. This is crucial in molecular distillation (分子蒸馏) because it enables the vaporized molecules to escape from the liquid phase without interacting with other molecules, thus preserving their integrity.One of the most common applications of molecular distillation (分子蒸馏) is in the production of high-purity essential oils, vitamins, and fatty acids. For instance, when extracting vitamin E from vegetable oils, traditional distillation methods may lead to the loss of volatile components and degradation of the product. However, by employing molecular distillation (分子蒸馏), manufacturers can achieve a higher yield of pure vitamin E while maintaining its chemical structure and beneficial properties.Moreover, molecular distillation (分子蒸馏) is also utilized in the petrochemical industry to refine crude oil into high-value products such as fuels and lubricants. The ability to separate components at lower temperatures minimizes the risk of thermal cracking, which can produce unwanted byproducts. This not only enhances the efficiency of the refining process but also contributes to more environmentally friendly practices.In addition to its industrial applications, molecular distillation (分子蒸馏) is increasingly being explored in research laboratories. Scientists use this technique to purify compounds that are otherwise difficult to separate due to their similar boiling points or chemical properties. By adjusting the operating conditions, researchers can isolate specific molecules for further study, leading to advancements in pharmaceuticals and materials science.In conclusion, molecular distillation (分子蒸馏) is a powerful and efficient separation technique that plays a critical role in various industries and scientific research. Its ability to operate under low pressure allows for the purification of sensitive compounds without degradation, making it indispensable in the pursuit of high-quality products. As technology continues to evolve, we can expect to see even more innovative applications of molecular distillation (分子蒸馏) in the future, further enhancing our capabilities in chemistry and beyond.

分子蒸馏是一种基于分子量分离物质的专业技术。这种方法在化学和生物化学领域特别有价值，因为化合物的纯度可以显著影响实验和应用的结果。分子蒸馏的过程涉及将液体加热以产生蒸气，然后再冷却该蒸气以再次形成液体。与传统蒸馏不同的是，这种技术是在低压下进行的。通过降低压力，物质的沸点降低，从而允许在不降解的情况下分离热敏材料。分子蒸馏的原理根植于平均自由程的概念。在气体中，平均自由程是指分子在碰撞其他分子之前的平均移动距离。在低压下，平均自由程增加，使得分子能够在不发生碰撞的情况下长距离移动。这在分子蒸馏中至关重要，因为它使得蒸发的分子能够从液相中逃逸，而不与其他分子相互作用，从而保持其完整性。分子蒸馏最常见的应用之一是在高纯度精油、维生素和脂肪酸的生产中。例如，在从植物油提取维生素E时，传统的蒸馏方法可能会导致挥发成分的损失和产品的降解。然而，通过采用分子蒸馏，制造商可以在保持维生素E的化学结构和有益特性的同时实现更高的纯度产量。此外，分子蒸馏还被用于石油化工行业，将原油精炼为高价值产品，如燃料和润滑剂。能够在较低温度下分离成分，最大限度地减少热裂解的风险，从而产生不必要的副产品。这不仅提高了精炼过程的效率，还有助于更环保的实践。除了工业应用，分子蒸馏在研究实验室中也越来越受到关注。科学家使用这种技术来纯化那些由于沸点或化学性质相似而难以分离的化合物。通过调整操作条件，研究人员可以分离出特定的分子进行进一步研究，从而推动制药和材料科学的进步。总之，分子蒸馏是一种强大而高效的分离技术，在各个行业和科学研究中发挥着关键作用。其在低压下操作的能力使得敏感化合物能够在不降解的情况下得到纯化，这使其在追求高质量产品的过程中不可或缺。随着技术的不断发展，我们可以期待未来在化学及其他领域看到更多分子蒸馏的创新应用，进一步增强我们的能力。