| Autor: |
Shevko, V. M., Badikova, A. D., Amanov, D. D., Karataeva, G. E., Lavrov, B. A. |
| Předmět: |
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| Zdroj: |
Rasayan Journal of Chemistry; Jul-Sep2018, Vol. 11 Issue 3, p1050-1057, 8p |
| Abstrakt: |
The presented paper contains the research results of extraction of the reduced silicon from the corundum matrix by means of different methods. The research has been performed with use of several methods: separation in a heavy suspension, sedimentation in high-viscous mediums and electrostatic separation. The results obtained at the studying of separation of the matrix (corundum) and the silicon produced from quartz glass and aluminium powder allowed to draw following conclusions: separation in an alcohol-bromoform medium allows to take no more than 16% of silicon; in the process the silicon concentration in the product makes 40-42%; at use of a water-glycerine mixture the silicon content in the product makes 39-49%, and the extraction degree of Si in it is no more than 32%; electrostatic separation allows to extract into the product 83-89% of Si; in this case the product contains 88-92% of silicon; application of iodine transport (the "inverted crucible" technique) allows to produce high-pure (99%) silicon at the actual extraction of 72,5 % and predicted one - 88,7%; for obtaining purer silicon (99,9999% of Si) we recommend to use vacuum purification. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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