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:
Jun. 05, 2001
Filed:
Jun. 02, 1999
Applicant:
Inventors:
Donald P. Malone, Grayson, KY (US);
Thomas C. Holcombe, Neshanic Station, NJ (US);
Assignee:
Marathon Ashland Petroleum, LLC, Findlay, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C 7/00 ; C22B 3/420 ;
U.S. Cl.
CPC ...
C21C 7/00 ; C22B 3/420 ;
Abstract
A continuous process for recovering vanadium values from petroleum coke is disclosed. A vanadium containing coke is charged to a molten metal bath to which oxygen containing gas is added in an amount sufficient to heat balance the process and produce off gas. The carbon in the coke dissolves in the molten metal bath as does the vanadium content of the coke. A majority, and preferably all, of the net addition of vanadium to the process is removed in the form of “dust” from the molten metal bath.