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:
Nov. 07, 1978
Filed:
Dec. 27, 1977
Applicant:
Inventors:
Chang J Kim, Somerset, NJ (US);
Dan Farcasiu, Princeton, NJ (US);
Assignee:
Exxon Research & Engineering Co., Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423492 ; 252415 ;
Abstract
Anhydrous TaF.sub.5 can be synthesized from a mixture comprising water and fluorotantalic acids by contacting said mixture with a dehydrating agent. Preferably, said mixture is formed by contacting tantalum oxides, tantalum oxide-halides or mixtures thereof with HF. The dehydrating agent should be a compound that contains carbon-chlorine bonds, carbon-bromine bonds or mixtures thereof.