GB903862A - Production of silicon or aluminium-silicon alloys - Google Patents

Production of silicon or aluminium-silicon alloys

Info

Publication number
GB903862A
GB903862A GB1343361A GB1343361A GB903862A GB 903862 A GB903862 A GB 903862A GB 1343361 A GB1343361 A GB 1343361A GB 1343361 A GB1343361 A GB 1343361A GB 903862 A GB903862 A GB 903862A
Authority
GB
United Kingdom
Prior art keywords
supplied
chlorine
commencement
silicon
production
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
GB1343361A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB903862A publication Critical patent/GB903862A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/06—Metal silicides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C01B33/023—Preparation by reduction of silica or free silica-containing material
    • C01B33/025—Preparation by reduction of silica or free silica-containing material with carbon or a solid carbonaceous material, i.e. carbo-thermal process
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Silicon Compounds (AREA)

Abstract

In a carbothermal process for the production of substantially iron-free silicon, the unreacted mixture of oxide and carbonaceous reducing agent is contacted with gaseous chlorine before these constituents reach their reduction temperature. The chlorine may be supplied from the commencement of heating until, or prior to, the initiation of the reduction reaction or may be supplied subsequent to the commencement of heating until the reduction temperature is reached. The process is preferably carried out in an arc furnace and the chlorine supplied through a hollow electrode.ALSO:In a carbothermal process for the production of substantially iron-free silicon-aluminium alloy, the unreacted mixture of oxide and carbonaceous reducing agent is contacted with gaseous chlorine before these constituents reach their reduction temperature. The chlorine may be supplied from the commencement of heating until, or prior to, the initiation of the reduction reaction or may be supplied subsequent to the commencement of heating until the reduction temperature is reached. The process is preferably carried out in an arc furnace and the chlorine supplied through a hollow electrode.
GB1343361A 1960-04-21 1961-04-14 Production of silicon or aluminium-silicon alloys Expired GB903862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2364960A 1960-04-21 1960-04-21

Publications (1)

Publication Number Publication Date
GB903862A true GB903862A (en) 1962-08-22

Family

ID=21816400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343361A Expired GB903862A (en) 1960-04-21 1961-04-14 Production of silicon or aluminium-silicon alloys

Country Status (3)

Country Link
CH (1) CH409412A (en)
DE (1) DE1134661B (en)
GB (1) GB903862A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008119331A2 (en) * 2007-03-30 2008-10-09 Solmic Gmbh Carbothermal reduction method and device for carrying out said method
CN106744974A (en) * 2016-12-13 2017-05-31 昆明理工大学 A kind of method that biomass carbon collaboration activation petroleum coke prepares industrial silicon carbonaceous reducing agent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008119331A2 (en) * 2007-03-30 2008-10-09 Solmic Gmbh Carbothermal reduction method and device for carrying out said method
WO2008119331A3 (en) * 2007-03-30 2009-02-19 Solmic Gmbh Carbothermal reduction method and device for carrying out said method
CN106744974A (en) * 2016-12-13 2017-05-31 昆明理工大学 A kind of method that biomass carbon collaboration activation petroleum coke prepares industrial silicon carbonaceous reducing agent

Also Published As

Publication number Publication date
DE1134661B (en) 1962-08-16
CH409412A (en) 1966-03-15

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