BE747277A - Procede de preparation d'oxydes de silicium en tres fines particules - Google Patents

Procede de preparation d'oxydes de silicium en tres fines particules

Info

Publication number
BE747277A
BE747277A BE747277DA BE747277A BE 747277 A BE747277 A BE 747277A BE 747277D A BE747277D A BE 747277DA BE 747277 A BE747277 A BE 747277A
Authority
BE
Belgium
Prior art keywords
fine particles
silicon oxides
preparing silicon
preparing
oxides
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Lonza 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 Lonza Ag filed Critical Lonza Ag
Publication of BE747277A publication Critical patent/BE747277A/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J15/00—Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01B33/113—Silicon oxides; Hydrates thereof
    • 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
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • C01B33/182—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by reduction of a siliceous material, e.g. with a carbonaceous reducing agent and subsequent oxidation of the silicon monoxide formed
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/053—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 30% but less than 40%
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3405—Arrangements for stabilising or constricting the arc, e.g. by an additional gas flow
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3452—Supplementary electrodes between cathode and anode, e.g. cascade

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Silicon Compounds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
BE747277D 1969-03-31 1970-03-12 Procede de preparation d'oxydes de silicium en tres fines particules BE747277A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH482669A CH519438A (de) 1969-03-31 1969-03-31 Verfahren zur Herstellung von feinstteiligem Siliciummonoxid

Publications (1)

Publication Number Publication Date
BE747277A true BE747277A (fr) 1970-08-17

Family

ID=4283210

Family Applications (1)

Application Number Title Priority Date Filing Date
BE747277D BE747277A (fr) 1969-03-31 1970-03-12 Procede de preparation d'oxydes de silicium en tres fines particules

Country Status (9)

Country Link
US (2) US3649189A (xx)
BE (1) BE747277A (xx)
CA (1) CA930521A (xx)
CH (2) CH519439A (xx)
FR (1) FR2039121A5 (xx)
GB (1) GB1296891A (xx)
NL (1) NL7003699A (xx)
NO (1) NO128652B (xx)
SE (1) SE359076B (xx)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899573A (en) * 1971-10-18 1975-08-12 Exxon Research Engineering Co Production of fine powders
US3925177A (en) * 1973-01-30 1975-12-09 Boeing Co Method and apparatus for heating solid and liquid particulate material to vaporize or disassociate the material
US3856918A (en) * 1973-03-28 1974-12-24 American Cyanamid Co Process for the beneficiation of titaniferous ores utilizing hot wall continuous plasma reactor
US4206190A (en) * 1974-03-11 1980-06-03 Westinghouse Electric Corp. Plasma arc production of silicon nitride
US4054641A (en) * 1976-05-07 1977-10-18 John S. Pennish Method for making vitreous silica
US4176166A (en) * 1977-05-25 1979-11-27 John S. Pennish Process for producing liquid silicon
US4272488A (en) * 1977-05-25 1981-06-09 John S. Pennish Apparatus for producing and casting liquid silicon
US4335080A (en) 1977-08-01 1982-06-15 Thermo Electron Corporation Apparatus for producing selective particle sized oxide
US4193851A (en) * 1978-07-21 1980-03-18 Ppg Industries, Inc. Silica gels and their formation by electrolysis of silicate solutions
GB2116810B (en) * 1982-02-15 1986-01-08 Ceskoslovenska Akademie Ved Method for stabilization of low-temperature plasma of an arc burner, and the arc burner for carrying out said method
US5647279A (en) * 1992-09-05 1997-07-15 Heidelberger Druckmaschinen Ag Printing machine roller and method of production thereof
JP3409294B2 (ja) * 1996-01-25 2003-05-26 株式会社豊田中央研究所 酸化物粉末の製造方法
US6495114B1 (en) 1999-07-22 2002-12-17 Fina Research, S.A. Production of silica particles
FR2916193B1 (fr) * 2007-05-18 2009-08-07 Commissariat Energie Atomique Synthese par pyrolyse laser de nanocristaux de silicium.
CN111453737B (zh) * 2019-01-22 2021-08-03 成都博达爱福科技有限公司 一种由mq硅树脂制备氧化亚硅的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180723B (de) * 1963-06-28 1964-11-05 Degussa Verfahren und Vorrichtung zur Herstellung von feinteiliger amorpher Kieselsaeure

Also Published As

Publication number Publication date
NO128652B (xx) 1973-12-27
GB1296891A (xx) 1972-11-22
DE2008029B2 (de) 1976-12-23
US3649189A (en) 1972-03-14
US3733387A (en) 1973-05-15
DE2008029A1 (de) 1970-10-15
SE359076B (xx) 1973-08-20
FR2039121A5 (xx) 1971-01-15
CH519438A (de) 1972-02-29
CH519439A (de) 1972-02-29
NL7003699A (xx) 1970-10-02
CA930521A (en) 1973-07-24

Similar Documents

Publication Publication Date Title
BE747277A (fr) Procede de preparation d'oxydes de silicium en tres fines particules
RO71467A (ro) Procedeu de incapsulare a unor materiale divizate in particule fine
BE800430A (fr) Fabrication d'articles plats en particules agglomerees
FR2285147A1 (fr) Procede de preparation de particules creuses, notamment pour medicaments
FR1463625A (fr) Procédé de préparation de polystyrènes expansibles en fines particules
IT1031882B (it) Processo per la preparazione di polimeri olefinici in piccole particelle
FR2307766A1 (fr) Procede de preparation de particules d'alumine spheroidales
CH511920A (fr) Procédé pour l'agglomération de particules solides d'agrégat
BE840770A (fr) Procede de preparation de particules d'alumine spheroidales
CH444832A (fr) Procédé de fabrication du carbure de silicium en fines particules
BE785113A (fr) Procede perfectionne de transformation d'hexafluorure d'uraniumen particules de bioxyde d'uranium de dimension determinee
FR1496210A (fr) Procédé de précipitation des vapeurs de cyanochlorure en fines particules
FR1450439A (fr) Procédé de préparation de particules d'alumine
IT1014710B (it) Processo per la preparazione di omopolimeri o copolimeri del l etilene in particelle fini
BE783526A (fr) Procede de preparation de polyethylene en petites particules
IT964273B (it) Perfezionamenti ai sistemi di distribuzione di materiale costitui to da fini particelle
BE749438A (fr) Procede pour mesurer et/ou surveiller les dimensions de particules en suspension
BE783582A (fr) Procede de preparation de polyethylene en petites particules
CH520521A (fr) Procédé de préparation de particules encapsulées
BE825132A (fr) Procede pour la preparation de petites particules de polypropylene
IT970979B (it) Procedimento per la fabbricazione di particelle sferiche
FR2327265A1 (fr) Procede de preparation de copolymeres en blocs d'oxydes de polyalkylene
AT331200B (de) Verfahren zur herstellung von hydrophobem feinteiligem siliciumdioxyd
BE781109A (fr) Procede de preparation de petites particules
BE767354A (fr) Procede pour le revetement metallique de particules abrasives