FR2441581A1 - Procede pour la fabrication par la voie pyrogene d'oxyde finement divise d'un metal et/ou d'un metalloide - Google Patents

Procede pour la fabrication par la voie pyrogene d'oxyde finement divise d'un metal et/ou d'un metalloide

Info

Publication number
FR2441581A1
FR2441581A1 FR7917873A FR7917873A FR2441581A1 FR 2441581 A1 FR2441581 A1 FR 2441581A1 FR 7917873 A FR7917873 A FR 7917873A FR 7917873 A FR7917873 A FR 7917873A FR 2441581 A1 FR2441581 A1 FR 2441581A1
Authority
FR
France
Prior art keywords
metalloid
metal
halogen
hydrogen
pyrogen
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.)
Granted
Application number
FR7917873A
Other languages
English (en)
Other versions
FR2441581B1 (fr
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2441581A1 publication Critical patent/FR2441581A1/fr
Application granted granted Critical
Publication of FR2441581B1 publication Critical patent/FR2441581B1/fr
Granted 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
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/20—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state
    • C01B13/22—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state of halides or oxyhalides
    • 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
    • C01B33/183—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
    • C01F7/302—Hydrolysis or oxidation of gaseous aluminium compounds in the gaseous phase
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G17/00—Compounds of germanium
    • C01G17/02—Germanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/07—Producing by vapour phase processes, e.g. halide oxidation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Silicon Compounds (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A.LE PROCEDE DE FABRICATION D'UN OXYDE UTILISE COMME MATIERE PREMIERE UN COMPOSE HALOGENE DU METAL OU DU METALLOIDE, L'HALOGENE SE COMBINANT AU COURS DE LA REACTION AVEC DE L'HYDROGENE POUR FORMER UN HYDRURE. B.DANS LE PARCOURS DE REFROIDISSEMENT QUI SUIT LE REACTEUR, ON INTRODUIT PAR UN TUYAU A DOUBLE PAROI, D'UNE PART, LE SUPPLEMENT D'HYDROGENE NECESSAIRE POUR FORMER L'HYDRURE D'HALOGENE, ET D'AUTRE PART, UN GAZ INERTE QUI REFROIDIT CONVENABLEMENT LE MELANGE. C.CETTE INTRODUCTION DE GAZ INERTE PERMET DE SUPPRIMER LES RISQUES DE COMBUSTION AVEC FLAMMES EN RAMENANT LA TEMPERATURE DU MELANGE DE GAZ QUI S'ECHAPPE EN DESSOUS DE LA TEMPERATURE OU L'HYDROGENE REAGIRAIT AVEC L'OXYGENE PRESENT.
FR7917873A 1978-11-17 1979-07-10 Procede pour la fabrication par la voie pyrogene d'oxyde finement divise d'un metal et/ou d'un metalloide Granted FR2441581A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2849851A DE2849851C3 (de) 1978-11-17 1978-11-17 Verfahren zur pyrogenen Herstellung von feinstteiligem Oxid eines Metalls und/oder eines Metalloids

Publications (2)

Publication Number Publication Date
FR2441581A1 true FR2441581A1 (fr) 1980-06-13
FR2441581B1 FR2441581B1 (fr) 1985-02-22

Family

ID=6054897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917873A Granted FR2441581A1 (fr) 1978-11-17 1979-07-10 Procede pour la fabrication par la voie pyrogene d'oxyde finement divise d'un metal et/ou d'un metalloide

Country Status (8)

Country Link
US (1) US4258023A (fr)
EP (1) EP0011084B1 (fr)
JP (1) JPS586682B2 (fr)
BE (1) BE880007A (fr)
DD (1) DD146937A5 (fr)
DE (2) DE2849851C3 (fr)
FR (1) FR2441581A1 (fr)
GB (1) GB2037726B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923182A1 (de) * 1979-06-08 1980-12-18 Degussa Verfahren zur pyrogenen herstellung von feinstteiligem oxid eines matalls und/oder eines metalloids
DE3739905A1 (de) * 1987-11-25 1989-06-08 Philips Patentverwaltung Verfahren und vorrichtung zur herstellung von aluminium-oxid-teilchen der alpha-modifikation
US6887566B1 (en) 1999-11-17 2005-05-03 Cabot Corporation Ceria composition and process for preparing same
JP3750728B2 (ja) * 2000-12-05 2006-03-01 信越化学工業株式会社 微細シリカの製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA768059A (en) * 1967-09-26 N. Dear William Manufacture of oxides
BE508951A (fr) * 1951-02-07
DE974793C (de) * 1952-04-02 1961-04-27 Degussa Verfahren zur Herstellung von feinverteilten Oxyden
US3201337A (en) * 1961-05-12 1965-08-17 Allied Chem Process for removing hydrogen from chlorine gas
US3361525A (en) * 1961-11-03 1968-01-02 Laporte Titanium Ltd Manufacture of oxides of the elements titanium, zirconium, iron, aluminum and silicon
US3365274A (en) * 1964-07-13 1968-01-23 Cabot Corp Metal and metalloid oxide production
GB1066651A (en) * 1965-01-18 1967-04-26 British Titan Products Oxides
GB1121279A (en) * 1965-07-28 1968-07-24 Degussa A process for the production of ultra-finely divided oxides
US3695840A (en) * 1970-05-04 1972-10-03 Ppg Industries Inc Method of preparing metal oxides with arc gas heaters
BE790704A (fr) * 1971-10-28 1973-02-15 Degussa Procede pour la fabrication d'oxydes finement
DE2533925C3 (de) * 1975-07-30 1980-12-11 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von feinstteiligen Oxiden von Metallen und/oder des Siliciums

Also Published As

Publication number Publication date
DD146937A5 (de) 1981-03-11
BE880007A (fr) 1980-05-13
DE2849851C3 (de) 1981-11-05
FR2441581B1 (fr) 1985-02-22
DE2962143D1 (en) 1982-03-25
DE2849851B2 (de) 1980-11-13
DE2849851A1 (de) 1980-05-22
JPS5571603A (en) 1980-05-29
EP0011084B1 (fr) 1982-02-17
GB2037726B (en) 1982-11-03
EP0011084A1 (fr) 1980-05-28
GB2037726A (en) 1980-07-16
US4258023A (en) 1981-03-24
JPS586682B2 (ja) 1983-02-05

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse