Study of a subfluoride process for production of high-purity silicon

Study of a subfluoride process for production of high-purity silicon Process was studied in which high-purity silicon (1.07–1.35 ppm) is obtained from powdered technical-grade silicon (99.81–99.86% Si) produced by acid refining to remove impurities by its treatment with gaseous SiF4 at a temperature of 1200°C to give pure SiF2 (gas), with its subsequent decomposition at temperatures lower than 800°C into silicon and SiF4 (gas) circulating in the system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Study of a subfluoride process for production of high-purity silicon

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Chemistry; Industrial Chemistry/Chemical Engineering; Chemistry/Food Science, general
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427212010028
Publisher site
See Article on Publisher Site

Abstract

Process was studied in which high-purity silicon (1.07–1.35 ppm) is obtained from powdered technical-grade silicon (99.81–99.86% Si) produced by acid refining to remove impurities by its treatment with gaseous SiF4 at a temperature of 1200°C to give pure SiF2 (gas), with its subsequent decomposition at temperatures lower than 800°C into silicon and SiF4 (gas) circulating in the system.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Feb 17, 2012

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