The synthetic ammonia industry, sulfuric acid industry, chlor alkali industry,which are the most important industrial inorganic chemistry,they have their own set of industrial system from raw materials to a variety of chemical products, to provide a large number of economic development of production materials.High school chemistry textbooks have a special section on the introduction of the industrial inorganic chemistry,which is also the importance of their visible. The following is a brief summary of them.
The industrial inorganic chemistry---Synthetic ammonia industry
High school textbooks on the introduction of the German chemist Haber - Fritz (F.Haber, 1868-1934) invented by nitrogen and hydrogen direct synthesis of ammonia. This is the direct synthesis method which is widely used in industry at present. In order to solve the problem of low conversion ratio of hydrogen and nitrogen in the process of reaction, the ammonia product was separated from the gas after the reaction of the synthesis reaction.
The industrial inorganic chemistry---sulfuric acid industry
The method of preparing sulfuric acid, which is introduced in the textbook, is the contact method, because the sulfur dioxide and oxygen react when the catalyst surface is in contact with the catalyst. This method was first invented by P Phillips in 1831.
The industrial inorganic chemistry---Preparation and purification of sulfur dioxide
The sulfur and pyrite were placed in a specially designed combustion furnace, the burning through the use of the oxygen in the air, you can get SO2. Reaction equation: S+O2 SO2 4FeS2+11O2 2Fe2O3+8SO2 boiling furnace from the furnace bottom pass into the strong air flow, in the furnace a certain space in the mineral particles blew violently churning, like "boiling liquid.The use of the boiling furnace can make the ore particles burn more completely, so as to improve the utilization ratio of the raw materials. The gas that comes out of the burning furnace is called furnace gas. Combustion of pyrite furnace gas containing SO2, O2, N2, water vapor and some impurities, such as arsenic and selenium compounds and dust and so on. Impurities and dust will cause catalyst poisoning, water vapor also have adverse effects on equipment and production. Therefore, it is necessary to carry out the purification and drying of the furnace gas before the next oxidation reaction. With a burning furnace gas sulfur prepared in addition to containing SO2, O2 and N2, less impurity, it does not need cleaning and drying treatment.
The industrial inorganic chemistry---Contact oxidation of three sulfur dioxide, sulfur dioxide