IRONMAKING PROCESS AND IRONMAKING SYSTEM

WIPO Patent Application WO/2011/108570

A1

An ironmaking process and an ironmaking system are provided in which ammonia, which is transported by an established method, is used as a reducing agent to thereby lower the temperature for the reduction reaction and make it possible to reduce the amount of the reducing agent to be used, fuel consumption, and carbon dioxide emission. A feed material for ironmaking and ammonia are supplied to a reactor (3) and subjected to reduction reaction, thereby producing iron. The ammonia may be supplied to the reactor (3) after being preheated to at least the temperature at which the feed material for ironmaking is reduced. Oxygen or air may be supplied to the reactor (3).

JPS5423014	PRODUCTION OF CRUDE IRON FROM IRON SULFIDE CONTAINING MATERIAL
JP5583585	A manufacturing method of stainless steel are an upper converter processing-side and using the direct reduction furnace of ferrochrome and ferronickel

AKIYAMA TOMOHIRO
OKINAKA NORIYUKI
HOSOKAI SOU
MATSUI KOUSUKE

PCT/JP2011/054713

September 09, 2011

March 02, 2011

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UNIV HOKKAIDO NAT UNIV CORP (JP)
JFE STEEL CORP (JP)
AKIYAMA TOMOHIRO
OKINAKA NORIYUKI
HOSOKAI SOU
MATSUI KOUSUKE

C21B15/00; C22B5/12

JPH0914853A

1997-01-17

SO HOSOKAI ET AL.: "Hematite no Ammonia Kangen Tokusei", CURRENT ADVANCES IN MATERIALS AND PROCESSES, vol. 23, no. 1, 1 March 2010 (2010-03-01)

SAGAWA Shingo et al. (JP)
Shingo Sagawa (JP)

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