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Manufacture of silicon tetrachloride from rice hulls
Author(s) -
Basu Prabir K.,
King C. Judson,
Lynn Scott
Publication year - 1973
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690190304
Subject(s) - silicon tetrachloride , rice hulls , chlorine , silicon , yield (engineering) , pyrolysis , chemistry , raw material , organic chemistry , materials science , metallurgy , composite material
Raw rice hulls contain about 20% silica in very finely dispersed form. Pyrolyzed hulls can be chlorinated at 1000°C to give a nearly quantitative yield of silicon tetrachloride free of most other inorganic chlorides. Solid, organic, chlorine‐containing species have been found to be reaction intermediates. Commercial application appears economically attractive.