JPWO2025158890A1 - - Google Patents
Info
- Publication number
- JPWO2025158890A1 JPWO2025158890A1 JP2025536422A JP2025536422A JPWO2025158890A1 JP WO2025158890 A1 JPWO2025158890 A1 JP WO2025158890A1 JP 2025536422 A JP2025536422 A JP 2025536422A JP 2025536422 A JP2025536422 A JP 2025536422A JP WO2025158890 A1 JPWO2025158890 A1 JP WO2025158890A1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft 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
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024008406 | 2024-01-24 | ||
| PCT/JP2025/000172 WO2025158890A1 (ja) | 2024-01-24 | 2025-01-07 | 直接還元炉の操業方法および還元鉄の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2025158890A1 true JPWO2025158890A1 (https=) | 2025-07-31 |
| JPWO2025158890A5 JPWO2025158890A5 (https=) | 2025-12-23 |
Family
ID=96544807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2025536422A Pending JPWO2025158890A1 (https=) | 2024-01-24 | 2025-01-07 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2025158890A1 (https=) |
| WO (1) | WO2025158890A1 (https=) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2810657C2 (de) * | 1978-03-11 | 1980-01-24 | Hamburger Stahlwerke Gmbh, 2103 Hamburg | Verfahren zur Direktreduktion von Eisenerzen |
| JPS59123708A (ja) * | 1982-12-27 | 1984-07-17 | Sumitomo Metal Ind Ltd | シヤフト炉による還元鉄製造法 |
| JPS6199612A (ja) * | 1984-10-22 | 1986-05-17 | Nippon Steel Corp | 酸化鉄の直接還元装置におけるガス再循環装置 |
| JP5630223B2 (ja) * | 2010-11-10 | 2014-11-26 | 新日鐵住金株式会社 | 炉頂ガスを循環した直接還元炉の操業方法 |
| JP7040659B1 (ja) * | 2021-03-31 | 2022-03-23 | Ｊｆｅスチール株式会社 | 還元炉の操業方法 |
-
2025
- 2025-01-07 JP JP2025536422A patent/JPWO2025158890A1/ja active Pending
- 2025-01-07 WO PCT/JP2025/000172 patent/WO2025158890A1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025158890A1 (ja) | 2025-07-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20250619 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20250619 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20250708 |