Smelting reduction method

Details Smelting reduction method Smelting reduction method

2005-01-04

2005-01-04

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Process control responsive to sensed condition

C075S385000, C075S475000, C075S484000, C075S500000

Reexamination Certificate

active

06837916

ABSTRACT:
A smelting reduction method comprising (a) charging a carbonaceous material and an ore into a reacting furnace to directly contact the carbonaceous material and the ore; (b) reducing the ore until at least a part of the ore is metallized, the resultant reduced ore containing at least a part of metallized metal being produced; (c) charging the carbonaceous material and the ore containing at least a part of the metallized metal from step (b) into a smelting furnace having a metal bath; and (d) blowing a gas containing 20% or more of oxygen into the metal bath in the smelting furnace to produce molten iron.

REFERENCES:
patent: 4295882 (1981-10-01), Arima et al.
patent: 4701214 (1987-10-01), Kaneko et al.
patent: 4842642 (1989-06-01), Bowman
patent: 5567224 (1996-10-01), Kundrat
patent: 5730775 (1998-03-01), Meissner et al.
patent: 5938815 (1999-08-01), Satchell, Jr.
patent: 6171364 (2001-01-01), Sarma et al.
patent: 49-93209 (1974-09-01), None
patent: 56-115670 (1981-09-01), None
patent: 1-147012 (1989-06-01), None
patent: 1-152211 (1989-06-01), None
patent: 2-73911 (1990-03-01), None
patent: 2-232312 (1990-09-01), None
patent: 4-83815 (1992-03-01), None
patent: 6-271919 (1994-09-01), None
patent: 7-316618 (1995-12-01), None
patent: 9-143525 (1997-06-01), None
patent: 9-217105 (1997-08-01), None
patent: 9-227919 (1997-09-01), None
patent: 9-256009 (1997-09-01), None
patent: 9608328 (1996-03-01), None
Report of National Research Institute of Metals, Science and Technology Agency, vol. 8, pp. 83-99 (1987).
Amit Ganguly and Ken J. Reid, “Carbon Utilization in Direct Smelting Systems”,Steel Research, 63, 281-290 (1992).
“Recent tendencies of new iron sources”, (“Recent Trends of New Iron Production Process”) by Iron Making Process Forum of the Iron and Steel Institute of Japan, pp. 42 to 51 (Sep. 1996).
“Studies on iron making technique of directly using coal” (“Direct Iron Ore melting Reduction Process”) by The Japan Iron and Steel Federation (Jun. 1996).
“The 165thand 166thNishiyama Commemoraive lecture”, pp. 149 to 175 (Sep. and Oct. 1997).
“The 165thand 166thNishiyama Commemorative Lecture”, pp. 117 to 147 (Sep. and Oct. 1997).
Rene Munnix, Jean Borlee, Didier Steyls and Mario Economopoulos, “Comet—A New Coal Based Process for the Production of DRI”,MPT International, pp. 50 to 61, Feb. 1997.
“Current Advances in Material and Processes”, Report of the ISIJ Meeting, The Iron and Steel Institute of Japan, CAMP-ISIJ vol. 10, (Sep. 1997), pp. 723 to 726.

Affiliated with

Also associated with

Rating

Smelting reduction method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Smelting reduction method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smelting reduction method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3418374