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. 24, 1981
Filed:
Nov. 09, 1978
Applicant:
Inventors:
Isao Fujita, Kobe, JP;
Mamoru Onoda, Midorigaokahigashi, JP;
Fumikazu Kawaguchi, Kobe, JP;
Yoshimichi Takenaka, Kobe, JP;
Tadao Tsutaya, Kobe, JP;
Assignee:
Kobe Steel, Limited, Kobe, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B / ; C22B / ;
U.S. Cl.
CPC ...
75-3 ; 75-5 ; 75 41 ;
Abstract
Fired iron-ore pellets are disclosed which are prepared by crushing iron ore to be pelletized, mixing a carbonaceous material of grain sizes ranging from 0.1 to 3 mm in diameter to the crushed iron ore in an amount of up to 4% by weight, pelletizing the mixture thus prepared, and firing the resulting pellets; thereby providing pellets throughout each of which is dispersed macro-pores of sizes ranging from 0.1 to 3 mm in diameter at a ratio of up to 25% relative to all pores contained in each pellet.