ATE873T1 - TEMPERATURE STABILIZED PYROGENIC MIXED ALUMINUM OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE. - Google Patents

TEMPERATURE STABILIZED PYROGENIC MIXED ALUMINUM OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE.

Info

Publication number
ATE873T1
ATE873T1 AT80103877T AT80103877T ATE873T1 AT E873 T1 ATE873 T1 AT E873T1 AT 80103877 T AT80103877 T AT 80103877T AT 80103877 T AT80103877 T AT 80103877T AT E873 T1 ATE873 T1 AT E873T1
Authority
AT
Austria
Prior art keywords
aluminum oxide
production
temperature stabilized
mixed aluminum
pyrogenic mixed
Prior art date
Application number
AT80103877T
Other languages
German (de)
Inventor
Peter Dr. Kleinschmit
Rudolf Dr. Schwarz
Original Assignee
Degussa Aktiengesellschaft
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 Aktiengesellschaft filed Critical Degussa Aktiengesellschaft
Application granted granted Critical
Publication of ATE873T1 publication Critical patent/ATE873T1/en

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
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/30—Oxides other than silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • C01P2006/12—Surface area

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Silicon Compounds (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Catalysts (AREA)

Abstract

There is provided temperature stabilized pyrogenically produced aluminum oxide-mixed oxide having a BET surface area of 50 to 200 m2/g which contains 0.5 to 20 weight % silicon dioxide as a constituent thereof. Because of the silicon dioxide constituent the aluminum oxide does not change into the alpha -Al2O3 phase until 1350 DEG C. The temperature stabilized aluminum oxide-mixed oxide is suitable for the production of thermal insulation compositions.
AT80103877T 1979-08-03 1980-07-08 TEMPERATURE STABILIZED PYROGENIC MIXED ALUMINUM OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE. ATE873T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792931585 DE2931585A1 (en) 1979-08-03 1979-08-03 TEMPERATURE-STABILIZED, PYROGEN-PRODUCED ALUMINUM OXIDE MIXED OXIDE, THE METHOD FOR THE PRODUCTION AND USE THEREOF
EP80103877A EP0023588B1 (en) 1979-08-03 1980-07-08 Temperature-stabilized pyrogenic oxide mixture of alumina oxide, process for its production and its use

Publications (1)

Publication Number Publication Date
ATE873T1 true ATE873T1 (en) 1982-05-15

Family

ID=6077588

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80103877T ATE873T1 (en) 1979-08-03 1980-07-08 TEMPERATURE STABILIZED PYROGENIC MIXED ALUMINUM OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE.

Country Status (5)

Country Link
US (1) US4286990A (en)
EP (1) EP0023588B1 (en)
JP (1) JPS5626717A (en)
AT (1) ATE873T1 (en)
DE (2) DE2931585A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167472A (en) * 1982-03-29 1983-10-03 呉羽化学工業株式会社 Double structure composite ceramic powder, manufacture and manufacturing equipment
GB2126931B (en) * 1982-09-04 1986-04-23 Rolls Royce Dissolving ceramic materials
GB2126569B (en) * 1982-09-04 1986-01-15 Rolls Royce Non-silica based ceramic cores for castings
JPS59128268A (en) * 1983-01-14 1984-07-24 呉羽化学工業株式会社 Composite ceramic powder and manufacture
JPS60131860A (en) * 1983-12-19 1985-07-13 呉羽化学工業株式会社 Alumina zirconia ceramic powder and manufacture
JPH01119559A (en) * 1987-11-02 1989-05-11 Kureha Chem Ind Co Ltd Mullite-alumina composite sintered compact and its production
DE3803897A1 (en) * 1988-02-09 1989-08-10 Degussa PRESSLINGS BASED ON PYROGEN-MANUFACTURED ALUMINUM OXIDE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
DE4228711A1 (en) * 1992-08-28 1994-03-03 Degussa Silicon-aluminum mixed oxide
US5877106A (en) * 1997-01-03 1999-03-02 Asec Manufacturing Stabilized crystalline alumina compositions
DE19650500A1 (en) 1996-12-05 1998-06-10 Degussa Doped, pyrogenic oxides
US6455455B1 (en) 1999-04-30 2002-09-24 Degussa Ag Silicon-aluminum mixed oxide
DE19919635A1 (en) * 1999-04-30 2000-11-23 Degussa Silicon-aluminum mixed oxide
DE19943291A1 (en) * 1999-09-10 2001-03-15 Degussa Pyrogenic alumina
EP1148026B1 (en) 2000-04-12 2016-08-10 Evonik Degussa GmbH Dispersions
DE10135452A1 (en) 2001-07-20 2003-02-06 Degussa Pyrogenically produced aluminum-silicon mixed oxides
DE10360087A1 (en) * 2003-12-20 2005-07-21 Degussa Ag Flame hydrolysis produced, hochoberflächiges alumina powder
EP2500090B1 (en) 2011-03-16 2016-07-13 Evonik Degussa GmbH Silicon-aluminium mixed oxide powder
US11427506B2 (en) 2016-07-29 2022-08-30 Evonik Operations Gmbh Method for producing hydrophobic heat insulation material
MX2019008516A (en) 2017-01-18 2019-09-18 Evonik Degussa Gmbh GRANULATED THERMAL INSULATION MATERIAL AND PROCEDURE TO PRODUCE IT.
DE102017209782A1 (en) 2017-06-09 2018-12-13 Evonik Degussa Gmbh Process for thermal insulation of an evacuable container
JP7184916B2 (en) 2018-03-05 2022-12-06 エボニック オペレーションズ ゲーエムベーハー Method for manufacturing airgel material
EP3597615A1 (en) 2018-07-17 2020-01-22 Evonik Operations GmbH Granular mixed oxide material and thermal insulating composition on its basis
CA3105678C (en) 2018-07-17 2022-10-18 Evonik Operations Gmbh Thermal insulating composition based on silica granulates
EP3823942A1 (en) 2018-07-18 2021-05-26 Evonik Operations GmbH Process for hydrophobizing shaped insulation-material bodies based on silica at ambient pressure
DK3870537T3 (en) 2020-01-14 2025-09-29 Evonik Operations Gmbh SILICON DIOXIDE-BASED HYDROPHOBIC GRANULAR MATERIAL WITH INCREASED POLARITY
US12515958B2 (en) 2020-04-30 2026-01-06 Evonik Operations Gmbh Silica aerogel with increased alkaline stability

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663283A (en) * 1969-10-02 1972-05-16 Richard A Hebert Process and apparatus for the production of finely-divided metal oxides
GB1350661A (en) * 1970-06-10 1974-04-18 Micropore International Ltd Thermal insulating materials
US3784388A (en) * 1971-08-02 1974-01-08 Norton Co Wear resistant aluminous ceramic articles
DE2163678C2 (en) * 1971-12-22 1981-10-15 Bayer Ag, 5090 Leverkusen Alumina fibers and processes for their manufacture
US4094690A (en) * 1972-08-07 1978-06-13 Imperial Chemical Industries Limited Liquid composition
US3989783A (en) * 1973-06-27 1976-11-02 Iowa State University Research Foundation, Inc. Dense mullite ceramic bodies and process of manufacture
US4040998A (en) * 1975-07-17 1977-08-09 Champion Spark Plug Company Aqueous dispersion of ceramic slurry
DE2533925C3 (en) * 1975-07-30 1980-12-11 Degussa Ag, 6000 Frankfurt Process for the production of finely divided oxides of metals and / or silicon
US4028453A (en) * 1975-10-20 1977-06-07 Lava Crucible Refractories Company Process for making refractory shapes
US4048290A (en) * 1976-01-28 1977-09-13 Cabot Corporation Process for the production of finely-divided metal and metalloid oxides
FR2399391A1 (en) * 1977-08-05 1979-03-02 Novatome Ind Two phase refractory ceramic prepn. - by mixing refractory aggregate with mullite gel, dehydrating, forming paste, moulding and firing in an oven
AU529558B2 (en) * 1978-12-20 1983-06-09 Consortium Fur Elektrochemische Industrie Gmbh Agglomereted mixtures of metel oxides

Also Published As

Publication number Publication date
US4286990A (en) 1981-09-01
JPS5626717A (en) 1981-03-14
EP0023588A1 (en) 1981-02-11
EP0023588B1 (en) 1982-04-21
DE3060306D1 (en) 1982-06-03
DE2931585A1 (en) 1981-02-12

Similar Documents

Publication Publication Date Title
ATE873T1 (en) TEMPERATURE STABILIZED PYROGENIC MIXED ALUMINUM OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE.
ATE1003T1 (en) TEMPERATURE STABILIZED SILICON DIOXIDE MIXED OXIDE, THE PROCESS FOR ITS PRODUCTION AND USE.
NO840112L (en) 2- (2-BENZIMIDAZOLYL) -PYRIDINES USED AS INTERMEDIATES IN THE MANUFACTURE OF COMPOUNDS OF SIMILAR STRUCTURE
IT1119264B (en) PROCEDURE FOR THE PREPARATION OF CONSERVABLE LIPOSOME COMPOSITIONS
DE3685061D1 (en) ZER-IV-OXYDE-CONTAINING COMPOSITION, THEIR PRODUCTION AND THEIR USE.
IT1016840B (en) COMPOSITIONS OF ISOTHIAZOLONE IS BILIZED FOR PAINTS AND THE LIKE
NO792548L (en) PROCEDURE FOR THE PREPARATION OF TITANIUM Dioxide PIGMENTS
AR209607A1 (en) PROCEDURE FOR THE PREPARATION OF DERIVATIVES OF 2,3-D OXO-1-PIPERAZINE-CARBONYLAMINE-ACETAMIDO-PENNYLAMINE OR 2,3-DIOXO-1-PIPERAZINOCARBONYLAMINE-ACETAMIDO-DELTA3-CEFEM-4-CARBOXYL ACID
NO833346L (en) PROCEDURE FOR THE PREPARATION OF NEW DIAZABICYCLO- (3,3,1) -NONANES
ATE26819T1 (en) PROCESS FOR THE PRODUCTION OF CRYSTALLINE ALUMINUM.
NO791639L (en) CONTINUOUS PROCEDURE FOR PRODUCTION OF PURE ALUMINUM OXIDE
IT1119910B (en) SOURCE COMPOUNDS WITH REGARD TO GASES PROCEDURE FOR THEIR PREPARATION AND PROCEDURE FOR SEPARATING GASES WITH THE USE OF SUCH COMPOUNDS
IT8048348A0 (en) 5-SUBSTITUTED PYRANONE COMPOUNDS FOR THE TREATMENT OF HYPERSENSITIVE CONDITIONS SUCH AS ASTHMA AND PREPARATION PROCEDURE
IT1142179B (en) IMPROVEMENT IN THERMAL CONTROL MATERIALS PARTICULARLY FOR THE INSULATION OF SPACE VEHICLES
NO802349L (en) PROCEDURE FOR THE PREPARATION OF TITANIC COMPOUNDS
NO791640L (en) CONTINUOUS PROCEDURE FOR PRODUCTION OF PURE ALUMINUM OXIDE
IT1202880B (en) PROCEDURE FOR THE MANUFACTURE OF THERMAL SHEETS
NO140925C (en) PROCEDURE FOR THE PREPARATION OF EXTERNAL OXIDE WITH SPECIAL LARGE PARTICLES
SE407937B (en) PROCEDURE FOR THE PREPARATION OF 1,3,4-SUBSTITUTED 2-PYRROLIDONES WITH THERAPENTIC PROPERTIES
SE8300676L (en) AMORFA LAYER SILICONE Dioxide Particles with Large Specific Surface, Procedures for Preparation and Use
DE59001389D1 (en) GRAY-BLACK INCLUDED PIGMENTS AND METHOD FOR THEIR PRODUCTION.
IT1164673B (en) NEW OXYMS DERIVED FROM THE ACID 3-AZIDOMETHY 7-AMINO THIAZOLYL ACETAMIDE CEPHALOSPORANIC, THEIR PREPARATION PROCEDURE AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
AT317348B (en) Adjustment procedure in the manufacture of thermal and electromagnetic releases, as well as the arrangement for carrying out the procedure
IT1165188B (en) PROCEDURE FOR THE PREPARATION OF MONOCARIONS BY DEDICARIOTIZATION OF DYKARYOTIC BASIDIOMYCETIC STRAINS
NO802346L (en) PROCEDURE FOR THE PREPARATION OF 4- (Naphthalene oxide) -piperidine derivatives.

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee