GB1290921A - - Google Patents

Info

Publication number
GB1290921A
GB1290921A GB1290921DA GB1290921A GB 1290921 A GB1290921 A GB 1290921A GB 1290921D A GB1290921D A GB 1290921DA GB 1290921 A GB1290921 A GB 1290921A
Authority
GB
United Kingdom
Prior art keywords
magnesium
inert gas
reducing agent
atmosphere
metallic
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
Application number
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 filed Critical
Publication of GB1290921A publication Critical patent/GB1290921A/en
Expired 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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • C22B26/22—Obtaining magnesium
    • 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
    • C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicon Compounds (AREA)

Abstract

1290921 Distilling magnesium J M AVERY 28 Jan 1970 [3 Feb 1969] 4120/70 Heading C7D A molten state reduction process for the production of metallic magnesium using a metallic (including silicon) reducing agent, with distillation of the magnesium is performed in presence of a chemically inert gas at a partial pressure of a least 1/10 atmosphere. The inert gas may be H 2 , He, Ar or Ne. The reducing agent may comprise aluminium, silicon, calcium, with iron optionally present. The reducing agent and magnesium oxide are preferably fed to a slag at a temperature of at least 1300‹ C. preferably 1400-1700‹ C. The slag composition may be 10-60% CaO, 10-35% Al 2 O 3 20-50% Si and 5-25% MgO. The absolute pressure of the vapour phase is preferably ¢-1 atmosphere but may be as high as 5 atmospheres. The inert gas may be introduced in a stream which may be recycled.
GB1290921D 1969-02-03 1970-01-28 Expired GB1290921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79621469A 1969-02-03 1969-02-03

Publications (1)

Publication Number Publication Date
GB1290921A true GB1290921A (en) 1972-09-27

Family

ID=25167629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1290921D Expired GB1290921A (en) 1969-02-03 1970-01-28

Country Status (5)

Country Link
US (1) US3658509A (en)
DE (1) DE2002544B2 (en)
FR (1) FR2033876A5 (en)
GB (1) GB1290921A (en)
YU (1) YU33212B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA932541A (en) * 1970-04-06 1973-08-28 M. Avery Julian Metallothermic production magnesium in the presence of a substantially static atmosphere of inert gas
US3681053A (en) * 1970-04-06 1972-08-01 Julian M Avery Use of high-silicon as the reductant for the metallothermic production of magnesium
US3994717A (en) * 1970-04-06 1976-11-30 Julian Avery Metallothermic production of magnesium in the presence of a substantially static atmosphere of inert gas
US3698888A (en) * 1970-04-06 1972-10-17 Julian Miles Avery Metallothermic production of magnesium
CA994108A (en) * 1972-04-18 1976-08-03 Julian M. Avery Aluminothermic production of magnesium and an oxidic slag containing recoverable alumina
FR2395319A1 (en) * 1977-06-24 1979-01-19 Sofrem IMPROVEMENTS IN THERMAL MAGNESIUM PRODUCTION PROCESSES
US4478637A (en) * 1983-03-10 1984-10-23 Aluminum Company Of America Thermal reduction process for production of magnesium
US4498927A (en) * 1983-03-10 1985-02-12 Aluminum Company Of America Thermal reduction process for production of magnesium using aluminum skim as a reductant
GB8716319D0 (en) * 1987-07-10 1987-08-19 Manchester Inst Science Tech Magnesium production

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114627A (en) * 1963-12-17 Producing metallic magnesium from a
GB727038A (en) * 1951-04-06 1955-03-30 Soberma Soc De Brevets D Etude A process for the manufacture of magnesium
US2847295A (en) * 1953-12-19 1958-08-12 Knapsack Ag Process and apparatus for the electrothermal production of magnesium
US2971833A (en) * 1958-04-09 1961-02-14 Le Magnesium Thermique Soc Process of manufacturing magnesium
US3427152A (en) * 1965-12-09 1969-02-11 Exxon Research Engineering Co Production of magnesium by thermal treatment of magnesium oxide utilizing countercurrently flowing hot inert gas

Also Published As

Publication number Publication date
FR2033876A5 (en) 1970-12-04
DE2002544A1 (en) 1970-08-06
YU14970A (en) 1975-12-31
YU33212B (en) 1976-06-30
DE2002544B2 (en) 1973-06-14
US3658509A (en) 1972-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee