Chemical materials can be divided into organic and inorganic chemistry.
1. Organic chemical raw materials
Alkenes, alkenes, hydrocarbons, aldehydes, alcohols, ketones, phenols, ethers, anhydrides, esters, acids, carboxylate, carbohydrates, heterocyclic, nitriles, generations, amines.
2. Inorganic chemical raw materials
The main raw materials for non-organic chemicals are chemical minerals such as sulfur, sodium, phosphorus, potassium, calcium (see inorganic salts industry), as well as coal, oil, natural gas, air, water, etc. In addition, many industrial by-products and wastes are also inorganic chemical raw materials.
For example, in the coking process of iron and steel industry, coke oven gas contains ammonia, which can be recovered by sulfuric acid method, ammonium sulfate, chalcopyrite, galena, sphalerite smelting waste gas in sulfur dioxide, etc.