Chemistry of inorganic compounds – Silicon or compound thereof – Halogen containing
Patent
1983-09-16
1985-03-12
Rutledge, L. Dewayne
Chemistry of inorganic compounds
Silicon or compound thereof
Halogen containing
260544K, 570230, C01R 3308
Patent
active
045044520
ABSTRACT:
Perchloroethylene, phosgene, and silicon tetrachloride are coproduced by passing vaporous carbon tetrachloride into contact with porous silica at a temperature of 800.degree. to 950.degree. C. The silica is disposed as a bed of granules have a surface area of from 0.1 to 30 m.sup.2 /g. It should be at least 90 percent pure and free of elemental carbon. Molecular oxygen and water vapor are excluded. The carbon tetrachloride is supplied in a proportion more than two mols per mol of silica consumed.
REFERENCES:
patent: 1930350 (1933-10-01), Strosacker et al.
patent: 2381001 (1945-08-01), Patnode et al.
patent: 3364272 (1968-01-01), Ager
Peter P. Budnikoff et al., "Darstellung des Siliciumtetrachlorids", Zeitschrift fur angewandte Chemie, vol. 39, p. 765, (1926).
Halogen Chemistry, vol. 2, p. 177-178 and 224, (1967), a multi-volume book edited by Viktor Guttman, Academic Press, London/New York, Subchapter ii: "Silicon Tetrachloride".
Lothar Meyer, "Uber die Einwirkung von Chlorkohlenstoff auf Oxyde", Berichte der Deutschen Chemischen Gesellschaft, vol. 20, pp. 681-683, (1887), esp. p. 683, lines 3-7.
Brody Christopher W.
Rutledge L. Dewayne
Yates William Miller
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