Platinum catalyst (English name platinum catalyst) is a general term for a catalyst made of metal platinum as the main active component. Use platinum metal mesh, platinum black, or platinum on a carrier such as alumina, and may also contain cocatalyst components such as metal rhenium. It is mainly used in processes such as ammonia oxidation, petroleum hydrocarbon reforming, oxidation and hydrogenation of unsaturated compounds, and removal of carbon monoxide and nitrogen oxides from gases. It is a catalyst often used in chemical, petroleum and chemical industry reaction processes. It has high catalytic activity, strong selectivity, convenient catalyst preparation, and low usage. The catalytic performance can be optimized through changes and improvements in the manufacturing method, compounding with other metals or cocatalyst active components, etc. It has a wide range of applications, can be repeatedly regenerated and activated, has a long life, and the metal palladium in the spent catalyst can be recycled and reused. Many varieties of platinum catalysts have become patented products and are widely used in all walks of life. Platinum catalysts with new structures and catalytic functions are still being developed, which not only makes many difficult-to-achieve reaction processes possible through platinum catalyst catalysis, but also makes Many industrial production processes such as petroleum and chemicals have been improved and improved by using newly developed platinum catalysts, which simplify the process and improve economic benefits. Therefore, platinum catalysts still have great development prospects.