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:
Mar. 23, 1982
Filed:
May. 02, 1979
Applicant:
Inventors:
Georg Boehm, Heddesheim, DE;
Engelbert Hillenbrand, Heppenheim, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; C21C / ;
U.S. Cl.
CPC ...
75 59 ; 75 60 ;
Abstract
A process for treating pig iron melts and steel melts or alloys in a converter, crucible or other vessel, wherein the entire refining and treatment process is carried out in a vessel with carbon dioxide, continuously and up to the finishing of the steel. Liquid carbon dioxide under a pressure of from 4.0 to 20.0 bar is used for the treatment. From about 50 to 300 kg of CO.sub.2 /tonne of steel are required for the refining of the pig iron melt.