Platinum catalyst (English name platinum catalyst) is a general term for catalysts made of metal platinum as the main active component. Using platinum metal mesh, platinum black, or supporting platinum on a carrier such as alumina, it may also contain co-catalyst components such as metal rhenium. Mainly used in ammonia oxidation, petroleum hydrocarbon reforming, oxidation and hydrogenation of unsaturated compounds, removal of carbon monoxide and nitrogen oxides in gas, etc. It is a catalyst often used in chemical, petroleum and chemical reaction processes. It has high catalytic activity, strong selectivity, convenient preparation of the catalyst, and small amount of use. The catalytic performance can be optimized by changing and improving the manufacturing method, compounding with other metals or co-catalyst active components, etc. It has a wide range of applications, can be regenerated and activated repeatedly, has a long service life, and the metal palladium of the waste catalyst can be recycled and reused. Many platinum catalyst varieties 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 catalyzed by platinum catalysts possible, but also enables Many industrial production processes such as petroleum and chemical industry have been improved and improved due to the use of newly developed platinum catalysts, which simplifies the process and improves economic benefits. Therefore, platinum catalysts still have great prospects for development.