GB960701A - Production of ferro-nickel from oxidic nickel-iron ores - Google Patents
Production of ferro-nickel from oxidic nickel-iron oresInfo
- Publication number
- GB960701A GB960701A GB3137060A GB3137060A GB960701A GB 960701 A GB960701 A GB 960701A GB 3137060 A GB3137060 A GB 3137060A GB 3137060 A GB3137060 A GB 3137060A GB 960701 A GB960701 A GB 960701A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- melt
- iron
- oxygen
- slag
- 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
- 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
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
<PICT:0960701/C6-C7/1> The nickel content of a nickel-iron melt is increased by introducing oxygen into the melt only through the surface while agitating the bath by non-pneumatic means. Fluxing material such as silica is added and iron and impurities are oxidized and eliminated as slag; the melt may be enriched to a nickel content of at least 65% before nickel losses to the slag become excessive. The temperature of the melt may be controlled by varying the oxygen flow rate, cooling by addition of nickel-containing scrap, or supplying heat by burning a fuel gas in the oxygen stream. As illustrated in Fig. 1, agitation is produced by carrying out the process in a rotary furnace 12 into which oxygen is blown through lance 15. Slag is withdrawn by tilting the furnace, and metal tapped either by tilting or through taphole 19. Slagging may be carried out in stages, later nickel-rich slags being returned to the smelting furnace. The nickel-iron melt is advantageously prepared by selective reduction of nickel-iron ores by a gas mixture whereby all the nickel and some iron are reduced, the partially reduced ore then being smelted in an electric furnace. The reducing gases may be produced by partial combustion of oil, natural gas or coal, the ratio of CO:CO2 generally being in the range 3:2 to 1:3 by volume. Specifications 677,349, 789,258, 855,544 and 863,766 are referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83951359A | 1959-09-11 | 1959-09-11 | |
| US53793A US3030201A (en) | 1960-09-02 | 1960-09-02 | Method of producing ferro-nickel from nickel-containing silicate ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB960701A true GB960701A (en) | 1964-06-17 |
Family
ID=26732253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3137060A Expired GB960701A (en) | 1959-09-11 | 1960-09-12 | Production of ferro-nickel from oxidic nickel-iron ores |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE594891A (en) |
| GB (1) | GB960701A (en) |
-
1960
- 1960-09-09 BE BE594891A patent/BE594891A/en unknown
- 1960-09-12 GB GB3137060A patent/GB960701A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE594891A (en) | 1961-03-09 |
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