A method for the production of the silicon from raw material - quartz in a low-shaft electric furnace as well as a process for the reduction of oxide raw materials

摘要

process for the production of silicon raw materials in a elektroniederschachtofen quartz, and in the elektroniederschachtofen of raw material quartz but form and reduktionsmittelbriketts from quartz and carbon, which in relation to the reaction of sio2 + 3c sic + 2co = a a surplus of carbon).in an upper part of the elektroniederschachtofens first at a temperature below unity of quartz in the reduktionsmittelbriketts to sic is implemented, then in a lower part of the elektroniederschachtofens at a temperature of about unity of the liquid raw material quartz reduz the.it is reduktionsmittelbriketts worked, in relation to the reaction of sio2 + 3c = sic + 2co surplus carbon of more than 50 wt.% and less than 90 wt.%, and in the upper part of the elektroniederschachtofens in the reduktionsmittelbriketts at the temperature of in addition to the activated carbon under unity of sic is formed.the reduktionsmittelbriketts taking a koksartige structure. this activated carbon, on the one hand, and with the silicon carbide on the other hand, in the lower part of the elektroniederschachtofens at the temperature of the liquid raw material quartz reduced unity. - similarly, also to reduce other oxide raw materials for the manufacture of e.g.magnesium and phosphorus process.