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. 25, 1984
Filed:
Sep. 15, 1983
Kawasaki Steel Corporation, Kobe, JP;
Abstract
Injection-desulfurization of a molten iron is carried out in a low cost by using powdery CaCO.sub.3 obtained by pulverizing limestone as a desulfurizing agent. This injection-desulfurization also can be attained by using a powdery mixture in which a main ingredient is said powdery calcium carbonate and not more than 30% by weight of powdery quicklime is added thereto, a powdery mixture in which a main ingredient is said powdery calcium carbonate and 5.about.20% by weight of a carbonaceous material and 2.about.15% by weight of at least one of halides of alkali and alkaline earth metals are added thereto, or a powdery mixture in which a main ingredient is said calcium carbonate and 5.about.20% by weight of a carbonaceous material, 2.about.15% by weight of at least one of halides of alkali and alkaline earth metals and not more than 30% by weight of powdery quicklime are added thereto, as the desulfurizing agent.