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:
Dec. 01, 2015
Filed:
Feb. 25, 2014
Applicant:
Chemtreat, Inc., Glen Allen, VA (US);
Inventors:
Donald C. Roe, Jamison, PA (US);
Joseph Hamnik, Saraland, AL (US);
James Wilkins, North Chesterfield, VA (US);
Assignee:
CHEMTREAT, INC., Glen Allen, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/00 (2006.01); B05D 7/00 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0093 (2013.01); B05D 7/00 (2013.01); C21B 13/008 (2013.01);
Abstract
An aspect provides a method of treating direct reduced iron (DRI) pellets, by applying a foam to the DRI pellets. The foam may include a foam having an expansion ratio of about 20-40 and a bubble size of about 200 microns or less. The foam may include one or more additives, such as anti-corrosion agent(s), oxidizing agents, and dust reducing binder(s). The foam(s) may be applied in a single stage or in multiple stages and may be applied to hot or cold DRI pellets. Other aspects are described and claimed.