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Optimizing the grain size distribution for talc-magnesite ore flotation
Flotation is the only separation method with an universal utilization. Along with the separation of particulate valuable or hazardous components from primary and seconadry mineral raw materials, it is of usage in biotechnologies and water cleaning. The success of the flotation separation crucially depends on the particle size distribution or composition of the ore charge entering the process. The paper deals with the problem of flotation treatment of talc-magnesite ore. The main components of the ore, i.e. talc and magnesite are appreciably different in their grindability and floatability. For such a type of raw material, grinding of the charge plays a very important role in the process. The (unwanted) influence of ultrafine particles on the course of the flotation process is well known. On the other hand, in order to liberate and subsequently to selectively separate both the components, a maximum particle size has to be respected.An influence of artificial samples of selected particle size fractions on the flotation efficiency has been studied experimentally by the quantitative evaluation of flotation products. The flotation experiments on the samples provided an information not obtainable from traditional flotation tests. An adverse effect of the size fraction 0 0.04 mm was revealed, decreasing the flotation selectivity appreciably. These results are of theoretical and practical importance.
Optimizing the grain size distribution for talc-magnesite ore flotation
Flotation is the only separation method with an universal utilization. Along with the separation of particulate valuable or hazardous components from primary and seconadry mineral raw materials, it is of usage in biotechnologies and water cleaning. The success of the flotation separation crucially depends on the particle size distribution or composition of the ore charge entering the process. The paper deals with the problem of flotation treatment of talc-magnesite ore. The main components of the ore, i.e. talc and magnesite are appreciably different in their grindability and floatability. For such a type of raw material, grinding of the charge plays a very important role in the process. The (unwanted) influence of ultrafine particles on the course of the flotation process is well known. On the other hand, in order to liberate and subsequently to selectively separate both the components, a maximum particle size has to be respected.An influence of artificial samples of selected particle size fractions on the flotation efficiency has been studied experimentally by the quantitative evaluation of flotation products. The flotation experiments on the samples provided an information not obtainable from traditional flotation tests. An adverse effect of the size fraction 0 0.04 mm was revealed, decreasing the flotation selectivity appreciably. These results are of theoretical and practical importance.
Optimizing the grain size distribution for talc-magnesite ore flotation
kvarla Jiøí (Autor:in) / Zeleòák Fridrich (Autor:in)
2001
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
flotation , magnesite , talcum , grain , separation , fine particles , Mining engineering. Metallurgy , TN1-997 , Geology , QE1-996.5
Metadata by DOAJ is licensed under CC BY-SA 1.0
Method for preparing light-burned magnesia from magnesite flotation tailings
| Europäisches Patentamt | 2024
| Engineering Index Backfile | 1925