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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.:

US 4824479 B1

PDFFull Text
Date of Patent:
Apr. 25, 1989

Filed:

Apr. 29, 1988

Method for producing a carbonaceous solid reductant for direct reduction

Applicant:
Inventors:

Toshio Matsuoka, Niihama, JP;

Seiji Sugimori, Saijo, JP;

Yukio Koyabu, Niihama, JP;

Shinichi Kurozu, Niihama, JP;

Assignee:

Sumitomo Heavy Industries, Ltd., Tokyo, JP;

Attorney:

Armstrong, Nikaido, Marmelstein & Kubovcik

Primary Examiner:

Melvyn J Andrews

Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75 / ; 75 33 ; 75257 ;
Abstract

In a method for producing a reactivity promoted carbonaceous solid reductant used for direct reduction of iron ore by means of an additional alkaline earth metal compound, and improved method wherein the improvement comprises grinding and mixing the carbonaceous solid reductant with the alkaline earth metal compound and agglomerating the resulting mixture to produce the reactivity promoted carbonaceous solid reductant of a definite grain size.

Find Patent Forward Citations

Matsuoka, Toshio. (1989). Method for producing a carbonaceous solid reductant for direct reduction (U.S. Patent No. 4824479). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4824479

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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