In many industrial production and scientific experiments, removing iron impurities is a crucial step. The presence of iron impurities can have a serious impact on product quality, experimental results, and equipment performance. Firstly, iron impurities may trigger chemical reactions. For example, in some chemical syntheses with extremely high purity requirements, iron impurities may react with other reagents, leading to impure products or even unpredictable side reactions, which in turn affect the smooth progress of the entire process and the stability of product quality. Secondly, iron impurities can cause damage to equipment. In some high-temperature and high-pressure industrial environments, iron impurities may accelerate the corrosion and wear of equipment. This not only increases the maintenance cost of equipment, but also may lead to equipment failure, affecting the continuity of production and causing huge economic losses. To effectively remove iron impurities, we need to adopt appropriate methods and technologies. Common methods of removing iron impurities include magnetic separation, filtration, and chemical precipitation. Magnetic separation is a method that uses magnetic force to separate iron-containing substances from mixtures. This method is efficient and convenient, and is suitable for removing large-particle iron impurities. Filtration is a method that intercepts iron-containing particles through a filter medium, thereby achieving the purpose of removing impurities. The choice of filter medium depends on the size and nature of the impurities. Chemical precipitation is a method that adds specific chemical reagents to make iron impurities react with the reagents to form a precipitate, and then removes the precipitate by filtration or centrifugation. In practical applications, we usually select appropriate methods of removing iron impurities according to specific circumstances. At the same time, to ensure the removal effect, we need to conduct strict monitoring and control of the removal process. Removing iron impurities is a key step in ensuring product quality, equipment safety, and production efficiency. We must attach great importance to this issue and adopt scientific and reasonable methods and technologies to continuously optimize the removal process to meet the increasing needs of industrial production and scientific research.