FR2128489A1 - Treating molten ferro-nickel - in refractory lined enclosures - Google Patents
Treating molten ferro-nickel - in refractory lined enclosuresInfo
- Publication number
- FR2128489A1 FR2128489A1 FR7207112A FR7207112A FR2128489A1 FR 2128489 A1 FR2128489 A1 FR 2128489A1 FR 7207112 A FR7207112 A FR 7207112A FR 7207112 A FR7207112 A FR 7207112A FR 2128489 A1 FR2128489 A1 FR 2128489A1
- Authority
- FR
- France
- Prior art keywords
- nickel
- pref
- ferro
- content
- refractory lined
- 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.)
- Withdrawn
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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The Ni content is increased and C content reduced by spraying a falling molten stream of ferro-nickel which pref. includes fine grain slagging agent and fluxes, with an O2 contg. gas, pref. pure O2, to form an is approx. horizontal spray cone. The metal and slag collecting at the bottom of the enclosure are pref. continuously evacuated, and the quantity of O2 relative to the initial wt. of ferro-nickel and supplied as a unit of time is greater the quantity stoichiometrically necessary to reduce the C content to is approx. 0.01% and to scorify >=30% of the Fe and other oxidisable elements e.g., Cr, Si and P which may be present.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT171471 | 1971-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2128489A1 true FR2128489A1 (en) | 1972-10-20 |
Family
ID=3519394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7207112A Withdrawn FR2128489A1 (en) | 1971-03-01 | 1972-03-01 | Treating molten ferro-nickel - in refractory lined enclosures |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BR7201034D0 (en) |
| CA (1) | CA956118A (en) |
| FR (1) | FR2128489A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851262A (en) * | 1994-11-25 | 1998-12-22 | Hitachi Metals, Ltd. | Method of refining molten metal |
| WO2001092585A2 (en) * | 2000-06-01 | 2001-12-06 | L'air Liquide Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude | Method and apparatus for treatment of metal cascades in flame and gas |
-
1972
- 1972-02-15 CA CA134,721A patent/CA956118A/en not_active Expired
- 1972-02-24 BR BR103472A patent/BR7201034D0/en unknown
- 1972-03-01 FR FR7207112A patent/FR2128489A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851262A (en) * | 1994-11-25 | 1998-12-22 | Hitachi Metals, Ltd. | Method of refining molten metal |
| WO2001092585A2 (en) * | 2000-06-01 | 2001-12-06 | L'air Liquide Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude | Method and apparatus for treatment of metal cascades in flame and gas |
| WO2001092585A3 (en) * | 2000-06-01 | 2002-05-30 | Air Liquide | Method and apparatus for treatment of metal cascades in flame and gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CA956118A (en) | 1974-10-15 |
| BR7201034D0 (en) | 1973-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |