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. 09, 2009
Filed:
Jul. 12, 2006
Applicants:
Dennis L. Yakobson, Arvada, CO (US);
Elijah C. Philipp, Westminster, CO (US);
Mark S. Bohn, Golden, CO (US);
Inventors:
Dennis L. Yakobson, Arvada, CO (US);
Elijah C. Philipp, Westminster, CO (US);
Mark S. Bohn, Golden, CO (US);
Assignee:
Rentech, Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 27/06 (2006.01); B01J 23/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for transforming at least a part of the catalyst precursor hematite into χ-carbide (FeC) and ε'-carbide (FeC) without a large amount of fines generation. This method slows the transformation of the hematite to iron carbides by reducing the partial pressure of the synthesis gas by inert gas dilution. The activation time is about three to about five hours.