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US2370898A - Production of metallic magnesium by ferrosilicon reduction - Google Patents

Production of metallic magnesium by ferrosilicon reduction Download PDF

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Publication number
US2370898A
US2370898A US507882A US50788243A US2370898A US 2370898 A US2370898 A US 2370898A US 507882 A US507882 A US 507882A US 50788243 A US50788243 A US 50788243A US 2370898 A US2370898 A US 2370898A
Authority
US
United States
Prior art keywords
magnesium
silicon
ferrosilicon
production
metallic magnesium
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 - Lifetime
Application number
US507882A
Other languages
English (en)
Inventor
Whiton Leslie Victor
Weld Hugh Mclaurin
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.)
Dominion Magnesium Ltd
Original Assignee
Dominion Magnesium Ltd
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 Dominion Magnesium Ltd filed Critical Dominion Magnesium Ltd
Application granted granted Critical
Publication of US2370898A publication Critical patent/US2370898A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • An object of the present invention is to imfprove the overall economic efllciency of this method.
  • a more specific object is to obtain a maximum recovery of magnesium in the calcine ered.
  • each retort While the retort remain within the furnace under operating temperatures of 1100 to 1200 C. the condenser end of each retort is opened to the air for removal of the condensed metal, discharge of the residue and recharging.
  • the retorts may be 6 to 12 inches in diameter, preferably 8 'or 10 inches, and are charged and discharged in groups in an operating cycle which may vary from say 6 to 12 hours.
  • the hot retorts are charged with briquettes, evacuated to remove steam, occluded and adsorbed gase and the charge is maintained under avery low pressure.
  • Silicon vapour is evolved from the ferrosilicon and this vapour reduces the magnesia to magnesium which is volatilized and condensed.
  • the exposed ends of the retorts are opened to the air and discharged.
  • a method of producing metallic magnesium which comprises calcining dolomite; and heating under reducing conditions thefcaicined dolomite with ierrosilicon in proportions to provide aratio of calcine to silicon between I to 0.160 and 1'toO.189.
  • a method of recovering magnesium'from' magnesia-containing material which comprises the step of heating under reducing conditions the magnesia-containing material with ierrosilicon proportions to provide substantially 15% silicon in excess oi the theoretical amount required for the reaction.
  • a method of recovering magnesium from magnesia-containing material by thermal reduction which comprises heating under reducing conditions said material containing one mole of VICTOR'WHITON. 4 HUGH MQLAURIN'WELD.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicon Compounds (AREA)
US507882A 1943-10-18 1943-10-27 Production of metallic magnesium by ferrosilicon reduction Expired - Lifetime US2370898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA262337X 1943-10-18

Publications (1)

Publication Number Publication Date
US2370898A true US2370898A (en) 1945-03-06

Family

ID=4171313

Family Applications (1)

Application Number Title Priority Date Filing Date
US507882A Expired - Lifetime US2370898A (en) 1943-10-18 1943-10-27 Production of metallic magnesium by ferrosilicon reduction

Country Status (3)

Country Link
US (1) US2370898A (fr)
BE (1) BE461609A (fr)
CH (1) CH262337A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464767A (en) * 1945-09-06 1949-03-15 Dominion Magnesium Ltd Production of calcium
US2527722A (en) * 1946-05-27 1950-10-31 North Carolina Magnesium Dev C Production of magnesium
US2527724A (en) * 1946-05-27 1950-10-31 North Carolina Magnesium Dev C Production of magnesium
US2934423A (en) * 1955-06-04 1960-04-26 Knapsack Ag Process for the thermal production of magnesium
US3129094A (en) * 1959-05-27 1964-04-14 Asahi Chemical Ind Method of producing a slag having the low melting point in the manufacture of metallic magnesium by reduction of magnesia with ferrosilicon
RU2552789C1 (ru) * 2013-12-18 2015-06-10 ООО "Современные химические и металлургические технологии" (ООО "СХИМТ") Способ получения металлического магния из безводного дихлорида

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464767A (en) * 1945-09-06 1949-03-15 Dominion Magnesium Ltd Production of calcium
US2527722A (en) * 1946-05-27 1950-10-31 North Carolina Magnesium Dev C Production of magnesium
US2527724A (en) * 1946-05-27 1950-10-31 North Carolina Magnesium Dev C Production of magnesium
US2934423A (en) * 1955-06-04 1960-04-26 Knapsack Ag Process for the thermal production of magnesium
US3129094A (en) * 1959-05-27 1964-04-14 Asahi Chemical Ind Method of producing a slag having the low melting point in the manufacture of metallic magnesium by reduction of magnesia with ferrosilicon
RU2552789C1 (ru) * 2013-12-18 2015-06-10 ООО "Современные химические и металлургические технологии" (ООО "СХИМТ") Способ получения металлического магния из безводного дихлорида

Also Published As

Publication number Publication date
CH262337A (fr) 1949-06-30
BE461609A (fr)

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