Micronization of Talc Milling in Attrition Mill
By the micronization-milling of the material, the size and the structure of its particles are changed and it comes to the increasing of the potential energy of the system as well as to the chemical activity of the material what is the result of an increased free surface and of the concentration of the grate defects, that is of the internal energy of the system. All these changes that are reached, show that new characteristics of treated materials are got by micronization process. Controlling the process of the micronization and by purpose directing of the new characteristics of the activated materials, we can have the positive effects and use them in more technologies.Talc is important nonmetallic mineral raw material that is widely used as either the basic raw material, or as filler. This has stimulated its technological investigation, as well as the investigation of its physical-chemical characteristics. In this paper are shown experimentally reached results of the physical-chemical characteristics of the talc during the process of the micronization in high energetic mill. In this paper, the optimum conditions of miconization of talc in high-energy-speed rotary mill and its influence micronization on a degree of Fe2O3 recovery by hydrometallurgical methodes, are presented. The X-ray analysis of the obtained products showed that high quality talc with low content of can be obtained by these physical-chemical processes.In this paper, the principles and application or fine and ultra-fine grinding high-energy attriton mill with small balls, enabling fast, efficient grinding, low energy consumption, short grinding time and easy handling will be described.
Dry micronizing High-energy mill Ultrafine grinding Enthalpy Reactivity Crystal structure Talc
Lj. D. Andric V. D. Milosevic D. S. Radulovic R. K. Jogric I. M. llic
Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
392-398
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）