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:
Feb. 08, 1994
Filed:
Jul. 06, 1992
Applicant:
Inventors:
James H Sommers, Albany, OR (US);
Lloyd J Fenwick, Corvallis, OR (US);
Assignee:
Teledyne Industries, Inc., Albany, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; C01B / ;
U.S. Cl.
CPC ...
423344 ; 423406 ; 423409 ; 423411 ;
Abstract
A method is disclosed for preparing and recovering metal nitrides from their ferrometal alloys and nickel metal alloys. Exemplary steps of the process involve niobium nitride prepared from ferroniobium alloys (FeNb) which are first hydrided to provide a friable, comminutable product which is then nitrided under conditions which form distinct phases of iron nitride and niobium nitride respectively.