GB726284A - A process for the reduction of oxidic ores - Google Patents
A process for the reduction of oxidic oresInfo
- Publication number
- GB726284A GB726284A GB19133/53A GB1913353A GB726284A GB 726284 A GB726284 A GB 726284A GB 19133/53 A GB19133/53 A GB 19133/53A GB 1913353 A GB1913353 A GB 1913353A GB 726284 A GB726284 A GB 726284A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- reduction
- ore
- rotary furnace
- retort
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 239000003575 carbonaceous material Substances 0.000 abstract 3
- 239000000571 coke Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- 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
- C21B13/146—Multi-step reduction without melting
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
In a process for reducing oxidic ores in the presence of carbonaceous material, the principal part of the reduction is effected in a rotary furnace and the mixture of partly-reduced ore and excess carbonaceous material is directly transferred to an externally heated retort for further reduction. Approximately 70 per cent reduction is preferably obtained in the rotary furnace and the amount of excess carbonaceous material transferred is approximately 20 per cent of the weight of the ore. In the example described, oxidic iron ore (with 35 per cent Fe) and coke was fed into a rotary furnace and reduced in counter-current to the furnace gases at a temperature of 1000 DEG C. so that 65 per cent reduction of the ore was obtained. The partially reduced ore and excess coke, which amounted to 25 per cent of the weight of the ore, was then transferred to a retort heated by oil burners where after 1 hour, 95 per cent reduction was obtained. The charge was then cooled and removed on a belt. The exhaust gases from the retort may be burnt in the rotary furnace.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO726284X | 1952-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB726284A true GB726284A (en) | 1955-03-16 |
Family
ID=19906820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19133/53A Expired GB726284A (en) | 1952-07-18 | 1953-07-09 | A process for the reduction of oxidic ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB726284A (en) |
-
1953
- 1953-07-09 GB GB19133/53A patent/GB726284A/en not_active Expired
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