FR2128489A1 - Treating molten ferro-nickel - in refractory lined enclosures - Google Patents

Treating molten ferro-nickel - in refractory lined enclosures

Info

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Withdrawn
Application number
FR7207112A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine AG
Voest AG
Original Assignee
Voestalpine AG
Voest AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voestalpine AG, Voest AG filed Critical Voestalpine AG
Publication of FR2128489A1 publication Critical patent/FR2128489A1/en
Withdrawn legal-status Critical Current

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.
FR7207112A 1971-03-01 1972-03-01 Treating molten ferro-nickel - in refractory lined enclosures Withdrawn FR2128489A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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
BR7201034D0 (en) 1973-05-15
CA956118A (en) 1974-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse