Carbon containing nonfired agglomerated ore for blast...

Details Carbon containing nonfired agglomerated ore for blast... Carbon containing nonfired agglomerated ore for blast...

2005-07-19

2005-07-19

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

C075S770000

Reexamination Certificate

active

06918944

ABSTRACT:
A nonfired agglomerated ore which is satisfactory in reduction property in the shaft of a blast furnace and excellent in rapid heating bursting property and a production method thereof are provided. A carbon containing nonfired agglomerated ore for blast furnace which is prepared in such a way that iron oxide and a carbonaceous material are blended with each other to prepare a mixture, a binder is added to the mixture, and the mixture is kneaded, formed, and cured, wherein the agglomerated ore contains carbon in the content of 80 to 120% of the theoretical carbon quantity required to reduce the reducible oxygen in the iron ores to form metallic iron, and the binder is selected so that the crushing strength may be 7,850 kN/m2or more at room temperature.

REFERENCES:
patent: 3725034 (1973-04-01), Joseph et al.
patent: 4168966 (1979-09-01), Furui et al.
patent: 4846884 (1989-07-01), Shigematsu et al.
patent: 6676725 (2004-01-01), Aota et al.
patent: 1158903 (1997-09-01), None

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