MX9704592A - Un metodo para la produccion de carburo de hierro. - Google Patents
Un metodo para la produccion de carburo de hierro.Info
- Publication number
- MX9704592A MX9704592A MX9704592A MX9704592A MX9704592A MX 9704592 A MX9704592 A MX 9704592A MX 9704592 A MX9704592 A MX 9704592A MX 9704592 A MX9704592 A MX 9704592A MX 9704592 A MX9704592 A MX 9704592A
- Authority
- MX
- Mexico
- Prior art keywords
- gas
- reducer
- reaction
- sulphur
- hydrogen
- Prior art date
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- 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
- C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Manufacture Of Iron (AREA)
Abstract
Un método para producir carburo de hierro poniendo en contacto mineral de hierro con un gas reductor que contiene hidrogeno y compuesto de carbono a elevada temperatura de reaccion y a una presion de reaccion igual a la atmosférica o más alta, para reducir y carburizar el mineral de hierro con la participacion de un componente de azufre, método que incluye medir la temperatura de reaccion, presion parcial del hidrogeno, P(H2), y presion parcial de sulfuro de hidrogeno, P(H2S), contenidos en el gas reductor, calcular la actividad del azufre, as, en el gas reductor a partir de la Ecuacion (1) mostrada después, y ajustar la presion parcial del sulfuro de hidrogeno P(H2S) en el gas reductor para obtener as = 1,0 a 2,0 a temperaturas de reaccion de 550 degreeC y por encima de ella pero inferiores a 650 degreeC, as = 0,7 a 2,0 a 650 degree8C, y as = 0,05 a 1,0 por encima de 650 degreeC y hasta 950 degreeC: as = (P(H2S)/P(H2))/(P(H2S)/P(H2))E donde (P(H2S)/P(H2)) representa la relacion entre las presiones parciales de H2S y H2 en el gas reductor y (P(H2S)/P(H2) E es la relacion entre las presiones parciales de H2S y H2 en un estado en el que la reaccion de la Ecuacion (2) siguiente está en equilibrio: FeS(s) + H2 (g) = Fe(s) + H2S(g) donde (s) y (g) representan fases solida y gaseosa, respectivamente. El método incluye, además el control de la presion de reaccion a presion atmosférica o por encima de ella en relacion con el gas oxidante contenido en un gas reductor a una temperatura de reaccion de 650 degreeC o más.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15862096A JP3294763B2 (ja) | 1996-06-19 | 1996-06-19 | 炭化鉄の製法 |
| JP8-158620 | 1996-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9704592A true MX9704592A (es) | 1998-07-31 |
| MXPA97004592A MXPA97004592A (es) | 1998-11-09 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| US6004373A (en) | 1999-12-21 |
| JPH107414A (ja) | 1998-01-13 |
| JP3294763B2 (ja) | 2002-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration | ||
| MM | Annulment or lapse due to non-payment of fees |