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Catalyst Introduction
Apr 17, 2018

In the chemical reaction, the chemical reaction can change the reaction rate (increasing or decreasing) of the reactants without changing the chemical equilibrium, and the substance whose quality and chemical properties are unchanged before and after the chemical reaction is called a catalyst (solid catalyst is also called catalyst). According to statistics, about 90% of industrial processes use catalysts such as chemical, petrochemical, biochemical, and environmental protection. A wide range of catalysts, according to the state can be divided into liquid catalysts and solid catalysts; according to the reaction system phase is divided into homogeneous catalysts and heterogeneous catalysts, homogeneous catalysts are acid, alkali, soluble transition metal compounds and peroxide catalysts. Catalysts play an extremely important role in the modern chemical industry. For example, in the production of synthetic ammonia, iron catalysts, sulfuric acid production using vanadium catalysts, ethylene polymerization, and butadiene rubber production, all three different catalysts are used. .