Fire enriched manganese, manganese is a way to improve the quality of the main products Fire enriched manganese is manganese-rich slag byproduct of pig iron and slag. Iron materials as iron and steel production, and manganese-rich slag as a main raw material bar addition of Si-Mn alloy, in the chemical industry have extensive use. Using it as a chemical raw material can save many processes and energy compared with raw ore. For example: the production of sulfur and manganese. It is directly reacted with sulfuric acid, thus eliminating the process of reduction by ore calcination.
However, the current price of manganese-rich slag is higher, and the price is increased by the improvement of its grade. The current price is 43.00 yuan per degree, it is not economical to use it to produce manganese sulfate, and the other product of the production of manganese-rich slag, the slag skin, is cheaper, and the price per ton is generally between 250-400 yuan. . It has broad prospects for the production of manganese salts and other chemical products. The author has long been exposed to the blast furnace fire method to collect manganese. In the course of work, the slag skin contains various components and data: manganese content: 24~30%, sediment: 32~36%, iron: 12~15%, phosphorus : 1.5~1.8%, moisture: The manganese content in the slag skin is directly related to the manganese-rich slag content produced by the blast furnace. The content of silica in the slag is related to the original ore, and also related to the quality of the blast furnace operator and the owner. The presence of pig iron in the slag is caused by the high iron content of the slag and the equivalent of manganese-rich slag. The main reason for this is that the moisture in the slag skin is caused by long-term accumulation in the open sun and rain. Through research and repeated experiments, the author successfully solved the above problems and opened a new page for the use of slag skin.
At present, this technology has formed a mature production process, the main elements of the product are as follows: particle size 30 mesh manganese content is 31%, iron content is 3.8, silica content is 28, phosphorus is 0.064~0.09, moisture is 1 The particle size of 20 mesh has a manganese content of 31%, a iron content of 4.2, a silica content of 29, a phosphorus content of 0.064 to 0.09, a moisture content of 1, a manganese content of a particle size of 10 of 30.57%, and an iron content of 4.58. The silica content is 30.35, the phosphorus is 0.064 to 0.09, and the moisture is 1.
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