GB1264452A - - Google Patents
Info
- Publication number
- GB1264452A GB1264452A GB1264452DA GB1264452A GB 1264452 A GB1264452 A GB 1264452A GB 1264452D A GB1264452D A GB 1264452DA GB 1264452 A GB1264452 A GB 1264452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ash
- binder
- pelletized
- water
- rotary kiln
- 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
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
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
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)
- Processing Of Solid Wastes (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
1,264,452. Reducing iron oxide. METALLGESELLSCHAFT A. G. Jan. 9, 1970 [Feb. 28, 1969], No. 1261/70. Heading C7D. In a process for directly reducing iron oxidecontaining material with solid carbonaceous materials in a rotary kiln, the surplus carbonaceous material separated from the matter discharged from the kiln is treated to remove part of the ash, and pelletized by rolling with the additions of water and a binder, the resulting pellets being fed to the rotary kiln. The surplus carbonaceous material is preferably communicated before pelletizing either before or after the removal of ash. The material pelletized has preferably a size below 1 mm when discharged. The pellets may have a size up to 20 mm. Up to 40% water may be used and up to 15% binder for example tar, pitch, bentonite or boiler ash. In the example sponge iron is produced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1910147A DE1910147C3 (en) | 1969-02-28 | 1969-02-28 | Process for the direct reduction of materials containing iron oxide in the rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1264452A true GB1264452A (en) | 1972-02-23 |
Family
ID=5726638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1264452D Expired GB1264452A (en) | 1969-02-28 | 1970-01-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3684483A (en) |
| DE (1) | DE1910147C3 (en) |
| GB (1) | GB1264452A (en) |
| NL (1) | NL6919134A (en) |
| SE (1) | SE354081B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145210A (en) * | 1976-02-24 | 1979-03-20 | Sumitomo Metal Industries, Ltd. | Process for indurating dried pellets in a rotary kiln |
| US4181520A (en) * | 1975-01-14 | 1980-01-01 | Metallgesellschaft Aktiengesellschaft | Process for the direct reduction of iron oxide-containing materials in a rotary kiln |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3509505A1 (en) * | 1985-03-16 | 1986-09-18 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the direct reduction of iron oxide-containing materials in a rotary kiln |
-
1969
- 1969-02-28 DE DE1910147A patent/DE1910147C3/en not_active Expired
- 1969-12-19 NL NL6919134A patent/NL6919134A/xx unknown
-
1970
- 1970-01-09 GB GB1264452D patent/GB1264452A/en not_active Expired
- 1970-01-14 US US2949A patent/US3684483A/en not_active Expired - Lifetime
- 1970-02-27 SE SE02646/70A patent/SE354081B/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181520A (en) * | 1975-01-14 | 1980-01-01 | Metallgesellschaft Aktiengesellschaft | Process for the direct reduction of iron oxide-containing materials in a rotary kiln |
| US4145210A (en) * | 1976-02-24 | 1979-03-20 | Sumitomo Metal Industries, Ltd. | Process for indurating dried pellets in a rotary kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1910147B2 (en) | 1979-06-21 |
| SE354081B (en) | 1973-02-26 |
| NL6919134A (en) | 1970-09-01 |
| US3684483A (en) | 1972-08-15 |
| DE1910147C3 (en) | 1980-02-21 |
| DE1910147A1 (en) | 1970-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |