The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 1990
Filed:
Oct. 02, 1989
Everett M Marlett, Baton Rouge, LA (US);
Ethyl Corporation, Richmond, VA (US);
Abstract
A process is provided wherein tertiary ammonium trichlorosilyl, a complexing tertiary amine, and an alkali metal aluminum tetrahydride are reacted together in molar proportion of about 1:2:3, such that silane and tertiary amine alane are produced. Tertiary ammonium trichlorosilyl may be pre-formed or formed in situ by the reaction of trichlorosilane and tertiary amine. Yields are dramatically higher when the process is conducted in the presence of a tris(polyalkoxyalkyl)amine phase transfer catalyst. A sequential process is also provided for the preparation of silane and aluminum trifluoride. In the first part of this sequence, silane and tertiary amine alane are produced as described above. In the second part of the sequence, silicon tetrafluoride is reacted with the amine alane, producing additional silane and aluminum trifluoride.