The second place is Jean Nickel, with a nickel reserve of about 520,000 tons. 600432。 Share price 17 yuan 80 points. The annual output is 27,000 tons.
Third place, Hua Ze nickel drilling industry, with a reserve of about 90,000 tons. 000693。 Share price 23 yuan. The annual output is about 5000 tons.
Nickel is a hard, ductile and ferromagnetic metal with high polishing and corrosion resistance. Nickel belongs to the iron-loving element. The inner core is mainly composed of iron and nickel. In the crust, ferromagnesian rocks contain more nickel than silicoaluminous rocks, for example, the nickel content of peridotite is 1000 times that of granite, and that of gabbro is 80 times that of granite.
20 17, 17,1October 27th, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference. Nickel compounds are included in the list of carcinogens, and metallic cobalt, metallic nickel and alloy powder containing 66-67% nickel, 13- 16% chromium and 7% iron are implanted into foreign bodies.
A brief history of discovery
Meteorites contain iron and nickel, which were used as refined iron in the early days. Because this metal does not rust, it is regarded as silver by Peruvian aborigines. In 200 BC, China began to use an alloy containing zinc and nickel, called white copper. Some even extended to Europe.
175 1 year, Alex Fredrik Cronstedt, who works in Stockholm (the capital of Sweden), studied a new metal called nickel, which came from Los Helsingland, Sweden. He thought it contained copper, but he extracted a new metal, which he announced in 1754 and named nickel. Many chemists think it is an alloy of cobalt, arsenic, iron and copper-these elements appear in the form of trace pollutants. It was not until 1775 that Tobenberg made pure nickel and proved that it was an element.
Distribution of mineral deposits
The world laterite nickel mines are distributed in tropical countries within 30 degrees north and south of the equatorial line, and concentrated in tropical-subtropical areas around the Pacific Ocean, mainly including Cuba and Brazil in America. Indonesia and the Philippines in Southeast Asia; Australia, New Caledonia and Papua New Guinea in Oceania. Nickel deposits in China are mainly distributed in the northwest, southwest and northeast, accounting for 76.8%, 65,438+02.1%and 4.9% of the total reserves in China respectively. In terms of provinces (regions), Gansu has the largest nickel reserves, accounting for 62% of the total nickel reserves in China, followed by Xinjiang (1 1.6%), Yunnan (8.9%), Jilin (4.4%), Hubei (3.4%) and Sichuan (3.3%). Among them, Jinchang copper-nickel deposit in Gansu Province has a huge nickel resource reserve, ranking second in the world and first in Asia, second only to sudbury nickel mine.