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:
Aug. 14, 1979
Filed:
Apr. 28, 1978
Applicant:
Inventor:
Robert A Gustison, Reading, PA (US);
Assignee:
Kawecki Berylco Industries, Inc., Boyertown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C22C / ;
U.S. Cl.
CPC ...
75 84 ; 75 27 ; 7510 / ; 75174 ; 423 62 ; 423 63 ; 423 64 ; 423 65 ; 423 66 ; 423472 ;
Abstract
The invention disclosed provides a process for recovering niobium values from aqueous hydrofluoric acid solutions by evaporating said solution to dryness and baking the residue at temperatures of 150.degree. to 250.degree. C. The solid residue is niobium oxyfluroide (NbO.sub.2 F) which may then be exothermically reduced with aluminum in the presence of an alloying element such as iron, nickel, or chromium to produce a niobium alloy. The evaporated hydrofluoric acid may be recovered by condensing or absorbing the evolved vapors.