Chemical raw materials like PTFE
2020-09-01
Chemical raw materials edit
There are many types of chemical raw materials, and they are widely used. There are as many as 5-7 million kinds of chemicals in the world, and more than 100,000 kinds are sold and circulated on the market, and more than 1,000 new chemicals come out every year, and 150-200 kinds of them are considered to be carcinogenic Things.
Typeedit
Chemical raw materials can generally be divided into two categories: organic chemical raw materials and inorganic chemical raw materials
Organic chemical raw materials
Can be divided into alkanes and their derivatives, alkenes and their derivatives, alkynes and derivatives, quinones, aldehydes, alcohols, ketones, phenols, ethers, anhydrides, esters, organic acids, carboxylic acids Salts, carbohydrates, heterocycles, nitriles, halogenated, aminoacyl, Other types
Inorganic chemical raw materials
The main raw materials of inorganic chemical products are chemical minerals such as sulfur, sodium, phosphorus, potassium, and calcium (see Inorganic Salt Industry), coal, petroleum, natural gas, air, and water. In addition, the by-products and wastes of many industrial sectors are also raw materials for inorganic chemicals, such as coke oven gas in the coking production process in the iron and steel industry. The ammonia contained in it can be recycled with sulfuric acid to produce ammonium sulfate, chalcopyrite, and galena. The sulfur dioxide in the smelting waste gas of mine and sphalerite can be used to produce sulfuric acid.
Transportedit
Dangerous goods are generally raw materials, intermediates, and products in the chemical industry. The choice of transportation methods is mainly based on the physical and chemical properties of related products. If it is a production, trade or logistics enterprise that needs to transport dangerous goods, it must first Product MSDS (Material Data Safety Sheet), the product is divided into three states: solid, liquid and gas, solid state can only be transported by pallet truck, gas state can only be stored in pressure cylinders or pressure tanks, liquid products are transported flexibly, because it is very dependent on temperature For its transportation, there are the following options: general barreled rear pallet truck transportation with high viscosity or heat preservation and heating tank truck transportation; chemicals with viscosity close to water, low vapor pressure, and non-corrosive chemicals are transported by ordinary pressure tank trucks; Corrosive products can be transported in stainless steel tank trucks.
