|
| volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 1 van 8 gevonden artikelen
| Titel: |
A contribution to the decrepitation study of the minerals |
| Auteur: |
Turèániová ¼udmila Krajecová Otília Miklúová Viera Ragan Emil Eliá Karol Boháèik ¼ubomír |
| Verschenen in: |
Acta Montanistica Slovaka |
| Paginering: | Jaargang 5 (2000) nr. 4 pagina's 355-357 |
| Jaar: |
2000 |
| Inhoud: |
The decrepitation activity of selected carbonate and sulphide minerals, as well as baryte was studied and it is presented in this paper. The thermal-vacuum impulse method was selected to be used for such a study within the thermal range of 25 400°C. It was confirmed that this method is also suitable for carbonate minerals with a medium decrepitation activity, e.g. magnesite with a fast transition from a non-impulse degasification to the impulse one. In case of very intensive decrepitating baryte mineral, the temperature of decrepitation is 60 70°C. The decrepitation activity of pyrite is lower at the temperature of 290 300°C as compared with arsenopyrite at the temperature of 150 170°C.If generalising the obtained results, it is necessary to note that the different decrepitation activity prefers the interpretation of mechanism of mineralogical school. The knowledge of the chemistry of solid phase extends the application possibilities of decrepitation of minerals in ceramics and drying processes.In connection with the technical conditions of drying process, it is significant that there is a limiting granularity with a minimal to zero decrepitation, while the temperature of drying is significantly decreasing. This information is based on the results obtained by technical-analytical study of dolomite minerals and coal. |
| Uitgever: |
Technical University of Kosice, the Faculty of Mining, Ecolo |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 8 gevonden artikelen
| volgende >> |