SAND, SHALE AND OTHER SILICON DIOXIDE SOLID COMPOUNDS AS STARTING SUBSTANCES FOR PROVIDING SILICON SOLID COMPOUNDS, AND CORRESPONDING PROCESSES FOR OPERATING POWER STATIONS

摘要

Process for providing silicon compounds from silicon dioxide compound, preferably from sand, having the following steps: a) introducing the silicon dioxide compound into a combustion zone, b) heating the combustion zone together with the silicon dioxide compound, c) conversion of silicon dioxide from the silicon dioxide compound into silicon (Si₂), wherein a reducing agent is fed in order to remove the oxygen from the silicon dioxide, d) injecting a gaseous reaction partner in order to produce the silicon compound from the silicon (Si₂).