GB926362A - Process for the production of metals or metalloids or mixtures or alloys thereof in a very pure state - Google Patents

Process for the production of metals or metalloids or mixtures or alloys thereof in a very pure state

Info

Publication number
GB926362A
GB926362A GB2191359A GB2191359A GB926362A GB 926362 A GB926362 A GB 926362A GB 2191359 A GB2191359 A GB 2191359A GB 2191359 A GB2191359 A GB 2191359A GB 926362 A GB926362 A GB 926362A
Authority
GB
United Kingdom
Prior art keywords
bed
particles
produced
gases
mixtures
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
GB2191359A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB926362A publication Critical patent/GB926362A/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
    • C22B41/00—Obtaining germanium
    • 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
    • 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
    • C01B35/00—Boron; Compounds thereof
    • C01B35/02—Boron; Borides
    • C01B35/023—Boron
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Silicon Compounds (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

<PICT:0926362/III/1> B or Si or mixtures or alloys of these are produced by passing the corresponding halide, hydride or hydrogen-containing halide or mixture thereof in the gaseous or vaporous form through a fluidized bed of the element to be produced or an inert material heated to above the decomposition temperature. Inert or reducing gases or vapours may be passed in with the gaseous starting materials. The Figure shows an apparatus in which an upflowing stream of gases or vapours from 2, preheated at 3, fluidizes a particulate bed contained between a and b. The issuing gases pass out through filters 5 and 6 and a condenser 7, and a part or all of them may be recycled through a pump 12. The element produced deposits on the particles of the fluidized bed until these fall and are discharged at 9. Simultaneously fresh particles are formed in the bed and further material deposits on these. By increasing the velocity of the upflowing gases these fresh particles may be removed and collected at the filter 5. Mixtures of elements may be produced by passing mixed gases into the bed and the particles produced may be alloyed if the bed temperature is correct. The process may also be used for producing fine Si particles from by passing Si Cl4 or Si Br4 through a bed of coarse Si particles at above the decomposition temperature. The fluidized bed may be heated by electric induction or resistance heating or by periodically supplying a gas (e.g. H2 or HCl) which reacts exothermically with the bed material.
GB2191359A 1958-06-25 1959-06-25 Process for the production of metals or metalloids or mixtures or alloys thereof in a very pure state Expired GB926362A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW23572A DE1082883B (en) 1958-06-25 1958-06-25 Process for the production of high purity boron, silicon or germanium or mixtures of these substances

Publications (1)

Publication Number Publication Date
GB926362A true GB926362A (en) 1963-05-15

Family

ID=7597614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2191359A Expired GB926362A (en) 1958-06-25 1959-06-25 Process for the production of metals or metalloids or mixtures or alloys thereof in a very pure state

Country Status (3)

Country Link
BE (1) BE579612A (en)
DE (1) DE1082883B (en)
GB (1) GB926362A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743541A (en) * 1967-02-17 1973-07-03 Scholemann Ag Reduction of solid, liquid or gaseous oxide-containing compounds
FR2178799A1 (en) * 1972-04-07 1973-11-16 Anvar Granular boron - by reducing volative boron cpd with hydrogen in fluidised boron bed
EP1223145A1 (en) * 2001-01-03 2002-07-17 Korea Research Institute Of Chemical Technology Method and apparatus for preparing polysilicon granules

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158695A (en) * 1976-07-01 1979-06-19 Hiroshi Ishizuka Electrothermal fluidized bed furnace
US5013604A (en) * 1988-10-11 1991-05-07 Ethyl Corporation Preparation of high purity boron

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778383A (en) * 1953-10-02 1957-07-03 Standard Telephones Cables Ltd Improvements in or relating to the production of material for semi-conductors
GB745698A (en) * 1953-09-25 1956-02-29 Standard Telephones Cables Ltd Improvements in or relating to methods of producing silicon of high purity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743541A (en) * 1967-02-17 1973-07-03 Scholemann Ag Reduction of solid, liquid or gaseous oxide-containing compounds
FR2178799A1 (en) * 1972-04-07 1973-11-16 Anvar Granular boron - by reducing volative boron cpd with hydrogen in fluidised boron bed
EP1223145A1 (en) * 2001-01-03 2002-07-17 Korea Research Institute Of Chemical Technology Method and apparatus for preparing polysilicon granules

Also Published As

Publication number Publication date
DE1082883B (en) 1960-06-09
BE579612A (en) 1959-10-01

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