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:
Sep. 25, 1979
Filed:
Feb. 21, 1978
Applicant:
Inventors:
Joseph A Neff, San Clemente, CA (US);
William D English, Orange, CA (US);
Assignee:
TRW Inc., Redondo Beach, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423351 ; 423465 ; 149 193 ;
Abstract
Tris-tetrafluorammonium hexafluoraluminate, (NF.sub.4).sub.3 AlF.sub.6, a new compound, is synthesized by forming a mixture of solid aluminum trichloride in a solution of a molar excess tetrafluorammonium bifluoride in anhydrous hydrogen fluoride, at a temperature of about -78.degree. C. or less. The mix is then rapidly heated to a temperature of about 40.degree. C. to the decomposition temperature of the product until all the solids dissolve. The solution containing the dissolved aluminum trichloride is evaporated under vacuum conditions to cause crystallization of (NF.sub.4).sub.3 AlF.sub.6.