RU94041489A - Method of pyrometallurgical upgrading complex iron-containing materials - Google Patents
Method of pyrometallurgical upgrading complex iron-containing materialsInfo
- Publication number
- RU94041489A RU94041489A RU94041489/02A RU94041489A RU94041489A RU 94041489 A RU94041489 A RU 94041489A RU 94041489/02 A RU94041489/02 A RU 94041489/02A RU 94041489 A RU94041489 A RU 94041489A RU 94041489 A RU94041489 A RU 94041489A
- Authority
- RU
- Russia
- Prior art keywords
- iron
- pellets
- temperature
- fusion
- melting point
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
FIELD: metallurgy. SUBSTANCE: method includes: mixing iron-containing material with a solid reducing agent, balling, baking, cooling, and subsequent magnetic separation. Method is distinguished with rolling a shell of material with melting temperature no less that 1.1 that of fusion of the most refractory constituent of reduced pellets followed by two-step baking of pellets. The latter are first baked to complete reduction of iron at temperature constituting 0.65-0.85 that of iron fusion and then heated to a temperature no lower than 1.02 that of fusion of the most refractory phase of reduced pellets. Average diameter of particles of rolled shell constitutes 30-75% that of diameter of iron-ore particles in the blend. Invention may be used in direct production of iron. EFFECT: improved procedure.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94041489/02A RU2087542C1 (en) | 1994-11-16 | 1994-11-16 | Method of pyrometallurgical enrichment of complex iron-containing materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94041489/02A RU2087542C1 (en) | 1994-11-16 | 1994-11-16 | Method of pyrometallurgical enrichment of complex iron-containing materials |
Publications (2)
Publication Number | Publication Date |
---|---|
RU94041489A true RU94041489A (en) | 1996-12-10 |
RU2087542C1 RU2087542C1 (en) | 1997-08-20 |
Family
ID=20162453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94041489/02A RU2087542C1 (en) | 1994-11-16 | 1994-11-16 | Method of pyrometallurgical enrichment of complex iron-containing materials |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2087542C1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2460813C1 (en) * | 2011-06-16 | 2012-09-10 | Антон Васильевич Рощин | Method for selective extraction of metals from complex ores |
RU2483118C1 (en) * | 2011-12-05 | 2013-05-27 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Method of metallising siderite stock for making granular iron and ferro-magnesia slag |
RU2539884C1 (en) * | 2013-09-13 | 2015-01-27 | Александр Давидович Поволоцкий | Processing method of iron-containing wastes |
RU2743132C2 (en) * | 2020-03-24 | 2021-02-15 | Владимир Иванович Лунёв | Method for obtaining iron from oolites of limonite ore and device for its implementation |
-
1994
- 1994-11-16 RU RU94041489/02A patent/RU2087542C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2087542C1 (en) | 1997-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
QB4A | Licence on use of patent |
Effective date: 20061012 |
|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20071117 |
|
NF4A | Reinstatement of patent |
Effective date: 20090220 |
|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20111117 |