Abstract
This article contains results of research which may be used as a basis for modernization of a currently applied technology or development of a basic technology for integrated processing of high-magnesia siderites, which satisfies current environmental requirements. It is fount that the application of the developed principles for processing of siderite ores of the Bakal deposit allows us to produce both an iron ore concentrate with the content of iron up to 60% (in comparison with 50-52% of iron using the applied technology) and magnesia with the content of magnesium oxide higher than 98%.
Keywords
Siderite ore, magnesium oxide, roasting, leaching, carbonic acid, magnesioferrite, magnesiowustite, X-ray structure analysis.
1. Kolokoltsev V.M., Bessmertnykh A.S., Bigeev V.A. Klochkovskiy S.P., Smirnov A.N. Application of pyro- and hydrometallurgical methods to process siderite ores with a high content of magnesium oxide. Mining Journal. Ferrous metals. Special Edition. 2012, pp. 22-24.
2. Leontev L.I., Vatolin N.A., Shavrin S.A., Shumakov N.S. Pirometal¬lurgicheskaya pererabotka kompleksnykh rud [Pyrometallurgical processing of complex ores]. Moscow: Metallurgy, 1997, 432 p.
3. Klochkovskii S., Smirnov A. The Principles of Processing Siderite Ores with a high Magnesium Oxide Content. Defect and Diffusion Forum 2012, Vols. 326-328, pp. 111-114.
4. Klochkovskiy S. P., Smirnov A. N., Laptev A. P. Kinetics of magnesium oxide leaching from products of roasting of high-magnesium siderite Teoriya i tekhnologiya metallurgicheskogo proizvodstva [Theory and technology of metallurgical production]. Magnitogorsk, 2012, iss. 12, pp. 117-120.