About Manganese Knowledge
Manganese plays an important role in 200 series stainless steel and is widely used in 200 series materials.
There are about 150 kinds of manganese-containing minerals known in nature, which belong to oxides, carbonates, silicates, sulfides, borates, tungstates, and phosphates. However, there are not many minerals with higher manganese content.
In modern industry, manganese and its compounds are used in various fields of the national economy. Among them, the iron and steel industry is the most important field, which uses 90%-95% of manganese. It is mainly used as a deoxidizer and desulfurized in the process of ironmaking and steelmaking and is used to make alloys.
The remaining 10% to 5% of manganese is used in other industrial fields, such as the chemical industry (manufacturing various manganese-containing salts), light industry (used in batteries, matches, printing paint, soap making, etc.), building materials industry (glass and ceramics) Colorants and fading agents), defense industry, electronics industry, environmental protection, and agriculture and animal husbandry, etc. In short, manganese has a very important strategic position in the national economy.
The earliest manganese mine was the Whitefield manganese mine in Tennessee, USA. Mining began in 1837. By 1884, the annual output of manganese ore had reached 40,000 tons. India is also one of the earliest countries to mine manganese ore, starting in 1892. Before World War I, India’s export of manganese ore had always been the world’s first. After 1928, its status was replaced by the former Soviet Union.
Since the end of the 1920s, the production of manganese ore in the former Soviet Union has been leading the world. In addition, Brazil, Ghana, Australia, South Africa, and Gabon have been mining manganese ore earlier.
The geological prospecting of manganese deposits in my country also started relatively early. According to the data found, manganese deposits were first discovered in Xingguozhou, Hubei (now Yangxin) in 1890, and then in Hunan in 1897 and 1907. The Anren, Youxian, Changning, and Leiyang manganese deposits were discovered; the Fangcheng Dazhi and Qinzhou Huangwutun manganese deposits in Guangxi were discovered in 1910; the Shangwudu manganese deposit in Xiangtan, Hunan (renamed Xiangtan manganese deposit in 1937) was discovered in 1913 and 1918. And Guangxi Mugui, Jiangxi Lehua manganese mine.
However, if the inhalation of manganese is too much, it is easy to cause heavy metal poisoning in the human body. Therefore, in daily life, do not buy various stainless steel tableware made of 200 series stainless steel. Try to use products that meet the national food-grade stainless steel standards.