FR2100725A1 - Iron smelting - using low-grade ores and coal in low-cost appts - Google Patents
Iron smelting - using low-grade ores and coal in low-cost apptsInfo
- Publication number
- FR2100725A1 FR2100725A1 FR7120350A FR7120350A FR2100725A1 FR 2100725 A1 FR2100725 A1 FR 2100725A1 FR 7120350 A FR7120350 A FR 7120350A FR 7120350 A FR7120350 A FR 7120350A FR 2100725 A1 FR2100725 A1 FR 2100725A1
- Authority
- FR
- France
- Prior art keywords
- low
- effluent
- iron
- fused
- degrees
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A rotary furnace is charged with iron ore, carbon-based reducing agents and slag-formers, and the ore reduced in the presence of hot combustion gas at 600 degrees-1300 degrees C to produce a solid to pasty mass of spongy iron and gangue consisting of the principal solid ingredients of the furnace effluent. This effluent is fused and the resultant slag floats towards the top in the fusion zone and is separated from the fused effluent, while molten iron deposit moves towards the base. The molten iron is refined if necessary and recovered from the fusion zone. The process requires comparatively low capital investment and can easily cope with a wide variety of starting materials, e.g. low-quality ores and non-coking coal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES38045170 | 1970-06-05 | ||
ES391598A ES391598A2 (en) | 1971-05-26 | 1971-05-26 | A hot separation process of the reduced iron mineral bargain in rotary reduction ovens. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2100725A1 true FR2100725A1 (en) | 1972-03-24 |
Family
ID=26155783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7120350A Withdrawn FR2100725A1 (en) | 1970-06-05 | 1971-06-04 | Iron smelting - using low-grade ores and coal in low-cost appts |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU2969271A (en) |
BE (1) | BE768112A (en) |
FR (1) | FR2100725A1 (en) |
LU (1) | LU63277A1 (en) |
NL (1) | NL7107671A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111020357B (en) * | 2019-11-22 | 2021-11-16 | 湖北省丹江口丹传汽车传动轴有限公司 | Production method for batch production of stable pearlite nodular cast iron QT500-7 |
-
1971
- 1971-06-03 LU LU63277D patent/LU63277A1/xx unknown
- 1971-06-04 BE BE768112A patent/BE768112A/en unknown
- 1971-06-04 FR FR7120350A patent/FR2100725A1/en not_active Withdrawn
- 1971-06-04 NL NL7107671A patent/NL7107671A/xx unknown
- 1971-06-04 AU AU29692/71A patent/AU2969271A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
LU63277A1 (en) | 1971-09-09 |
AU2969271A (en) | 1972-12-07 |
NL7107671A (en) | 1971-12-07 |
BE768112A (en) | 1971-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |