Introduction Nickel is a silver-white metal, in the air is easy to be oxidized by the air, the surface of the formation of some hair of the oxide film, so people often see the color of nickel hair.Nickel is hard, ductile, magnetic and corrosion resistant, and highly polished.Nickel is also abundant in the earth's crust.Nickel silicate ore or sulfur, arsenic, nickel compounds exist in nature. The development of nickel In recent years, the production and consumption of nickel in the world is relatively stable, the supply and demand of nickel in the world market mainly changes with the development of the stainless steel industry. With the increase of the application of nickel in the consumption of stainless steel industry, the smelting technology of ferronickel has made great progress, and the output of high-grade ferronickel has been greatly improved.Russia, Canada, new caledonia, Indonesia, Australia and Cuba account for about 80% of the world's nickel production and exports.