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:
Feb. 19, 1980
Filed:
Sep. 11, 1978
Ludwig Fiege, Moers, DE;
Hans-Werner Hohle, Moers, DE;
Wilhelm J Janssen, Mulheim, DE;
Klaus-H Ulrich, Heiligenhaus, DE;
Fried. Krupp Huttenwerke AG, Bochum, DE;
Abstract
A method of utilizing waste dust and waste sludge from blast furnaces and steel works for subsequent steel production comprising forming the waste dust and waste sludge into pellets containing basic gangue and higher sulphur contents and having a metallization degree of over 80% in which up to 10% by weight of the pellets are intimately mixed with liquid pig iron relative to the weight of the pig iron to form a pig iron melt, the pellets being placed into a pig iron charging ladle prior to and/or during the reladling of the liquid pig iron from a torpedo ladle into a charging ladle, and the pig iron is deslagged prior to the pouring thereof into a refining vessel.