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Production of iron

A technology for iron ore and equipment, applied in the field of iron production, can solve the problems of difficulty in obtaining iron/steel-making processes, etc.

Active Publication Date: 2013-08-21
TECH RESOURCES PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will result in additional CO at the steelmaking facility when the pig iron is reheated to its molten state for transformation into steel 2 emission
[0012] The above difficulties mean that it is economically feasible to have CO 2 Sequestered iron / steelmaking processes may be difficult to obtain practically, although the CO 2 Sequestration may itself be technically feasible

Method used

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  • Production of iron

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Embodiment Construction

[0092] The description below is in the context of reduction of fine iron ore having a gangue content of at least 5% by weight on a dry basis, more typically at least 6% by weight on a dry basis. It should be noted that the present invention is not so limited and extends also to the production of iron from lump iron ore.

[0093] In an embodiment, iron ore fines and natural gas 75 (or coal) are supplied to a solid state reduction plant 10, which is typically in the form of a fluidized bed plant such as Circored and Circofer (available from Outotec) or a Finmet furnace (available from Outotec). available from Siemens VAI, Germany).

[0094] Plant 10 is operated under standard conditions with partial reduction of iron ore to greater than 65% and less than 85% metallization.

[0095] Natural gas 75 is produced in a gas processing machine 50 that processes natural gas from an onshore or offshore production well 45 .

[0096] The plant 10 releases a partially metallized fines prod...

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Abstract

A two stage iron making process is disclosed. A first stage includes solid state reduction of iron ore and producing a partially-reduced iron-containing feed material and an off-gas containing CO2 at a location that is in close proximity to a site for sequestering C02. A second stage includes transporting the feed material to an iron making facility iron at another location and producing iron from the feed material.

Description

technical field [0001] The present invention relates to the production of iron from iron ore. [0002] The term "iron ore" is understood herein to mean mined material comprising iron oxides. The term also covers mined substances containing other valuable metals. For example, the term covers mined materials including iron oxides and titanium oxides. [0003] The present invention relates in particular, although by no means exclusively, to the production of iron from iron ore having a gangue content of at least 5% by weight on a dry basis. [0004] The present invention relates more particularly, though by no means exclusively, to the 2 Emissions from the production of iron from iron ore. Background technique [0005] Blast furnaces are the most widely used option for producing iron from iron ore. Ironmaking and downstream steelmaking processes contribute to CO2 2 significant contribution to emissions. [0006] There are currently no readily available substitutes for ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B13/00C21B5/00C22B5/12
CPCC21B5/06C21B13/00Y02P10/122C21B2100/282Y02P10/134Y02P10/25C21B3/00
Inventor T·J·伊万斯
Owner TECH RESOURCES PTY LTD