FI67235C - Foerfarande foer selektiv reduktion av metalloxidmalmer - Google Patents
Foerfarande foer selektiv reduktion av metalloxidmalmer Download PDFInfo
- Publication number
- FI67235C FI67235C FI750469A FI750469A FI67235C FI 67235 C FI67235 C FI 67235C FI 750469 A FI750469 A FI 750469A FI 750469 A FI750469 A FI 750469A FI 67235 C FI67235 C FI 67235C
- Authority
- FI
- Finland
- Prior art keywords
- reducing agent
- mass
- reaction mixture
- volume
- ore
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
- C21B5/004—Injection of slurries
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Claims (6)
1. Förfarande för selektiv reduktion av sädana oxidmalmer eller sadan oxidslagg som innehäller flere metalloxider i liten mängd och nickeloxid i en mängd om 2-3 % för huvud-sakligen fullst.ändig separering av i dem ingäende nickel-metall, i vilket förfarande reaktionsblandningen bestäende av malmen eller slaggen som är under behandling och av reduktionsmedlet, vars volym i förhällande tili volymen hos det ämne som behandlas är liten, bringas tili en hög temperatur, kännetecknat av att reaktionsblandningen ästadkommes i tvä pä varandra följande steg, av vilka det första steget innefattar dispergering av reduktionsmedlet i en sadan mängd bärarämne, att den erhällna reduktions-massans volym är ätminstone tre ganger reduktionsmedlets volym, och det andra steget innefattar blandning av denna reduktionsmassa med reaktionsblandningens övriga beständs-delar, varefter den erhällna reaktionsblandningen bringas att reducera och smälta vid förhöjd temperatur.
2, Förfarande enligt patentkravet 1, kännetecknat av att i det första steget bildas en emulsion av ett reduktions-medel i vätskeform i vatten och i det andra steget bildas agglomerater genom att använda denna emulsion som bindemedel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7405879A FR2262119B1 (sv) | 1974-02-21 | 1974-02-21 | |
| FR7405879 | 1974-02-21 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI750469A FI750469A (sv) | 1975-08-22 |
| FI67235B FI67235B (fi) | 1984-10-31 |
| FI67235C true FI67235C (fi) | 1985-02-11 |
Family
ID=9135236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI750469A FI67235C (fi) | 1974-02-21 | 1975-02-19 | Foerfarande foer selektiv reduktion av metalloxidmalmer |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4073641A (sv) |
| JP (1) | JPS50157204A (sv) |
| BE (1) | BE825742A (sv) |
| BR (1) | BR7501055A (sv) |
| CA (1) | CA1053471A (sv) |
| CU (1) | CU34204A (sv) |
| ES (1) | ES434810A1 (sv) |
| FI (1) | FI67235C (sv) |
| FR (1) | FR2262119B1 (sv) |
| OA (1) | OA04853A (sv) |
| YU (1) | YU41045B (sv) |
| ZA (1) | ZA751067B (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2386609A1 (fr) * | 1977-04-04 | 1978-11-03 | Sofrem | Procede de traitement de minerais metalliques complexes contenant en particulier du manganese et du cuivre, tels que des nodules oceaniques |
| US4756748A (en) * | 1984-12-24 | 1988-07-12 | Canadian Patents and Development Limited--Societe Canadienne des Brevets et d'Exploitation Limitee | Processes for the smelting reduction of smeltable materials |
| JP6926674B2 (ja) * | 2017-05-24 | 2021-08-25 | 住友金属鉱山株式会社 | 酸化鉱石の製錬方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE595949A (fr) * | 1959-10-13 | 1961-04-12 | Bergwerksverband Gmbh | Procédé de préparation de corps comprimés résistant à l'eau à l'aide de liants hydrosolubles. |
| CA851655A (en) * | 1967-03-06 | 1970-09-15 | A. Bell James | Beneficiation of nickel-containing lateritic ores |
-
1974
- 1974-02-21 FR FR7405879A patent/FR2262119B1/fr not_active Expired
-
1975
- 1975-02-13 CU CU34204A patent/CU34204A/es unknown
- 1975-02-17 CA CA220,300A patent/CA1053471A/fr not_active Expired
- 1975-02-18 ES ES434810A patent/ES434810A1/es not_active Expired
- 1975-02-18 YU YU37775A patent/YU41045B/xx unknown
- 1975-02-19 FI FI750469A patent/FI67235C/fi not_active IP Right Cessation
- 1975-02-20 BR BR7501055A patent/BR7501055A/pt unknown
- 1975-02-20 JP JP2142275A patent/JPS50157204A/ja active Pending
- 1975-02-20 BE BE153527A patent/BE825742A/xx not_active IP Right Cessation
- 1975-02-20 OA OA55422A patent/OA04853A/xx unknown
- 1975-02-20 ZA ZA00751067A patent/ZA751067B/xx unknown
-
1977
- 1977-03-07 US US05/774,976 patent/US4073641A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ZA751067B (en) | 1976-01-28 |
| FR2262119B1 (sv) | 1976-12-03 |
| YU37775A (en) | 1982-02-28 |
| FI750469A (sv) | 1975-08-22 |
| CA1053471A (fr) | 1979-05-01 |
| OA04853A (fr) | 1980-10-31 |
| YU41045B (en) | 1986-10-31 |
| US4073641A (en) | 1978-02-14 |
| FI67235B (fi) | 1984-10-31 |
| JPS50157204A (sv) | 1975-12-19 |
| BE825742A (fr) | 1975-06-16 |
| BR7501055A (pt) | 1975-12-02 |
| ES434810A1 (es) | 1976-11-16 |
| FR2262119A1 (sv) | 1975-09-19 |
| CU34204A (es) | 1979-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: SOCIETE FRANCAISE D ELECTROMETALLURGIE |