FR2487378A1 - Procede pour produire par aluminothermie du chrome et des alliages de chrome a faible teneur en azote - Google Patents

Procede pour produire par aluminothermie du chrome et des alliages de chrome a faible teneur en azote Download PDF

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Publication number
FR2487378A1
FR2487378A1 FR8114058A FR8114058A FR2487378A1 FR 2487378 A1 FR2487378 A1 FR 2487378A1 FR 8114058 A FR8114058 A FR 8114058A FR 8114058 A FR8114058 A FR 8114058A FR 2487378 A1 FR2487378 A1 FR 2487378A1
Authority
FR
France
Prior art keywords
chromium
nitrogen
nickel
alloys
mixture
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.)
Granted
Application number
FR8114058A
Other languages
English (en)
French (fr)
Other versions
FR2487378B1 (ref
Inventor
Frederick H Perfect
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.)
Reading Alloys Inc
Original Assignee
Reading Alloys Inc
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 Reading Alloys Inc filed Critical Reading Alloys Inc
Publication of FR2487378A1 publication Critical patent/FR2487378A1/fr
Application granted granted Critical
Publication of FR2487378B1 publication Critical patent/FR2487378B1/fr
Granted 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/06—Alloys based on chromium
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/959—Thermit-type reaction of solid materials only to yield molten metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FR8114058A 1980-07-28 1981-07-20 Procede pour produire par aluminothermie du chrome et des alliages de chrome a faible teneur en azote Granted FR2487378A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/172,545 US4331475A (en) 1980-07-28 1980-07-28 Process for aluminothermic production of chromium and chromium alloys low in nitrogen

Publications (2)

Publication Number Publication Date
FR2487378A1 true FR2487378A1 (fr) 1982-01-29
FR2487378B1 FR2487378B1 (ref) 1983-12-30

Family

ID=22628157

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8114058A Granted FR2487378A1 (fr) 1980-07-28 1981-07-20 Procede pour produire par aluminothermie du chrome et des alliages de chrome a faible teneur en azote

Country Status (6)

Country Link
US (1) US4331475A (ref)
JP (1) JPS5729542A (ref)
CA (1) CA1175661A (ref)
DE (1) DE3129563A1 (ref)
FR (1) FR2487378A1 (ref)
GB (1) GB2080831B (ref)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917726A (en) * 1987-04-16 1990-04-17 Amax Inc. Chromium recovery process
JPH03146625A (ja) * 1989-11-01 1991-06-21 Japan Metals & Chem Co Ltd 高純度金属クロムの製造方法
US5086720A (en) * 1991-01-25 1992-02-11 Kahlil Gibran Furnace for controllable combustion of thermite
US5316723A (en) * 1992-07-23 1994-05-31 Reading Alloys, Inc. Master alloys for beta 21S titanium-based alloys
US5364587A (en) * 1992-07-23 1994-11-15 Reading Alloys, Inc. Nickel alloy for hydrogen battery electrodes
US9771634B2 (en) * 2014-11-05 2017-09-26 Companhia Brasileira De Metalurgia E Mineração Processes for producing low nitrogen essentially nitride-free chromium and chromium plus niobium-containing nickel-based alloys and the resulting chromium and nickel-based alloys
US10041146B2 (en) * 2014-11-05 2018-08-07 Companhia Brasileira de Metalurgia e Mineraçäo Processes for producing low nitrogen metallic chromium and chromium-containing alloys and the resulting products
RU2599464C2 (ru) * 2015-02-26 2016-10-10 Открытое акционерное общество "Ключевский завод феррославов" (ОАО "КЗФ") Шихта и способ алюминотермического получения сплава на основе хрома с ее использованием

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735085A (en) * 1952-08-28 1955-08-10 Westinghouse Electric Int Co Improvements in or relating to the purification of refractory metals and alloys thereof
US3725051A (en) * 1970-10-14 1973-04-03 Union Carbide Corp Method of purifying low-carbon ferrochrome
DE2204871B1 (de) * 1972-02-02 1973-04-05 Reading Alloys, Inc., Robesonia, Pa. (V.StA.) Vanadin-aluminium-titan-vlegierungg
DE2303697B1 (de) * 1973-01-26 1973-12-06 Th. Goldschmidt Ag, 4300 Essen Verfahren zur herstellung von legierungspulvern aus seltenen erden und kobalt
FR2270335A1 (ref) * 1974-05-09 1975-12-05 Nippon Steel Corp
FR2312568A1 (fr) * 1975-05-28 1976-12-24 Atomic Energy Board Procede pour effectuer la reduction alumino-thermique d'un oxyde d'un metal reactif
US4169722A (en) * 1975-05-28 1979-10-02 Atomic Energy Board Aluminothermic process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE175885C (ref) *
DE187457C (ref) *
US2242759A (en) * 1938-03-02 1941-05-20 Walter H Duisberg Reduction of difficultly reducible oxides
US2789896A (en) * 1956-03-15 1957-04-23 Climax Molybdenum Co Process for reducing metal oxides

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735085A (en) * 1952-08-28 1955-08-10 Westinghouse Electric Int Co Improvements in or relating to the purification of refractory metals and alloys thereof
US3725051A (en) * 1970-10-14 1973-04-03 Union Carbide Corp Method of purifying low-carbon ferrochrome
DE2204871B1 (de) * 1972-02-02 1973-04-05 Reading Alloys, Inc., Robesonia, Pa. (V.StA.) Vanadin-aluminium-titan-vlegierungg
DE2303697B1 (de) * 1973-01-26 1973-12-06 Th. Goldschmidt Ag, 4300 Essen Verfahren zur herstellung von legierungspulvern aus seltenen erden und kobalt
FR2215480A1 (ref) * 1973-01-26 1974-08-23 Goldschmidt Ag Th
FR2270335A1 (ref) * 1974-05-09 1975-12-05 Nippon Steel Corp
US4008104A (en) * 1974-05-09 1977-02-15 Nippon Steel Corporation Method for dephosphorization and denitrification of an alloy containing easily oxidizable components
FR2312568A1 (fr) * 1975-05-28 1976-12-24 Atomic Energy Board Procede pour effectuer la reduction alumino-thermique d'un oxyde d'un metal reactif
US4169722A (en) * 1975-05-28 1979-10-02 Atomic Energy Board Aluminothermic process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/67 *

Also Published As

Publication number Publication date
CA1175661A (en) 1984-10-09
JPH0140899B2 (ref) 1989-09-01
GB2080831B (en) 1984-04-26
DE3129563C2 (ref) 1988-11-03
GB2080831A (en) 1982-02-10
FR2487378B1 (ref) 1983-12-30
US4331475A (en) 1982-05-25
JPS5729542A (en) 1982-02-17
DE3129563A1 (de) 1982-12-09

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