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. 21, 1999
Filed:
Mar. 25, 1998
Applicant:
Inventors:
Ernest O Ohsol, Crosby, TX (US);
Thomas E Gillespie, Houston, TX (US);
John W Pinkerton, Houston, TX (US);
Thomas H Laity, Nassau Bay, TX (US);
Assignee:
UniPure Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208131 ; 208132 ; 208226 ; 208230 ;
Abstract
A method is described for making a high purity coke fuel or anode grade coke from a heavy petroleum residuum by contacting a molten anhydrous alkali metal hydroxide with the heavy petroleum residuum at a temperature and for a time sufficient to extract substantially all sulfur and heavy metals contained in the petroleum residuum to the alkali metal hydroxide and recovering the coke product.