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:
Nov. 04, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Dieter Funders, Duisburg, DE;
Harald Winter, Monchengladbach, DE;
Assignee:
L'Air Liquide S.A., Paris Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C21B / ; C21B / ;
U.S. Cl.
CPC ...
266 45 ; 266196 ; 222603 ;
Abstract
A process for reducing dust emission and free air access in the tapping region of a blast furnace by applying CO.sub.2 in a solid and/or gaseous state to the molten material and or the runners and vessels associated therewith. This process reduces dust emissions, nitriding of the product and energy costs associated with conventional dust reduction operations as well as wear of the refractory materials.