Patents Represented by Law Firm Collard, Row & Galgano
  • Process for the preparation of silicon tetrachloride
    Patent number: 4604272
    Abstract: The invention relates to the preparation of silicon tetrachloride by reacting material containing SiO.sub.2 with chlorine in the presence of carbon and metal halides and especially chlorides of the fifth main or subsidiary group of the Periodic Table at temperatures in the range of from 500.degree. to 1200.degree. C. The material containing SiO.sub.2 has a BET surface area of at least 0.1 m.sup.2 /g and the carbon has a BET surface area of at least 0.5 m.sup.2 /g.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: August 5, 1986
    Assignee: Wacker-Chemie GmbH
    Inventors: Gunter Kratel, Stefan Loskot