The presence of iron impurities not only affects the purity of materials, but also may reduce product performance and damage equipment. For different scenarios, modern industry has developed a variety of mature solutions: 1. Magnetic separation technology Using permanent magnets or electromagnetic devices to generate high-intensity magnetic fields can effectively adsorb magnetic impurities such as iron filings and iron powder, suitable for industries such as mining, food processing, and plastic recycling. Equipment ranges from simple magnetic rods to fully automatic magnetic separators, adapting to the needs of continuous production. 2. Chemical dissolution method Selectively dissolving iron with acidic solutions (such as hydrochloric acid and sulfuric acid) is often used in laboratory purification or the preparation of high-purity materials in the electronics industry. It is necessary to strictly control the concentration and reaction time to avoid corroding the substrate. 3. Eddy current sorting For iron impurities in non-ferrous metals (such as aluminum and copper), eddy currents are induced by alternating magnetic fields to achieve non-contact ejection and separation, particularly suitable for the waste metal recycling industry. 4. Preventive measures Strengthening raw material screening, equipment anti-rust maintenance, and clean management of the working environment can reduce iron contamination at the source. It is recommended to build a protection system combining metal detectors and automatic removal devices. When selecting a solution, it is necessary to comprehensively consider the impurity form, processing capacity, cost, and environmental protection requirements. Professional teams can customize and optimize solutions for you to improve product quality and production efficiency.