FR2688420A1 - Poudre d'oxyde finement divisee. - Google Patents

Poudre d'oxyde finement divisee. Download PDF

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Publication number
FR2688420A1
FR2688420A1 FR9302678A FR9302678A FR2688420A1 FR 2688420 A1 FR2688420 A1 FR 2688420A1 FR 9302678 A FR9302678 A FR 9302678A FR 9302678 A FR9302678 A FR 9302678A FR 2688420 A1 FR2688420 A1 FR 2688420A1
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France
Prior art keywords
oxide powder
suspension
powder according
coating
spray drying
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.)
Pending
Application number
FR9302678A
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English (en)
French (fr)
Inventor
Meier Dr Andreas
Graf Gerhard
Dosinger Klaus
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.)
Veitscher Magnesitwerke AG
Original Assignee
Veitscher Magnesitwerke 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 Veitscher Magnesitwerke AG filed Critical Veitscher Magnesitwerke AG
Publication of FR2688420A1 publication Critical patent/FR2688420A1/fr
Pending legal-status Critical Current

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
    • 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
    • C01B13/145—After-treatment of oxides or hydroxides, e.g. pulverising, drying, decreasing the acidity
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/02—Magnesia
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    • 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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/053—Fine ceramics
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
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    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62886—Coating the powders or the macroscopic reinforcing agents by wet chemical techniques
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    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/028—Compounds containing only magnesium as metal
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding or treatment with ultrasonic vibrations
    • C09C3/043—Drying, calcination
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
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    • C01—INORGANIC CHEMISTRY
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    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR9302678A 1992-03-10 1993-03-09 Poudre d'oxyde finement divisee. Pending FR2688420A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0045892A AT398967B (de) 1992-03-10 1992-03-10 Verfahren zur herstellung eines feinteiligen oxidpulvers

Publications (1)

Publication Number Publication Date
FR2688420A1 true FR2688420A1 (fr) 1993-09-17

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FR9302678A Pending FR2688420A1 (fr) 1992-03-10 1993-03-09 Poudre d'oxyde finement divisee.

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AT (1) AT398967B (https=)
DE (1) DE4306234C2 (https=)
FR (1) FR2688420A1 (https=)
GB (1) GB2264939B (https=)
IT (1) IT1270867B (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9415562D0 (en) * 1994-08-02 1994-09-21 Dytech Corp Ltd Ceramic articles
DE10058077B4 (de) * 2000-11-23 2008-05-08 Schott Ag Verwendung von beschichteten Teilchen

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EP0041158A1 (de) * 1980-06-02 1981-12-09 Chemie Linz Aktiengesellschaft Füllstoff für Papier, Karton oder Pappe, ein Verfahren zu dessen Herstellung und Papier, Karton oder Pappe
JPS60200824A (ja) * 1984-03-27 1985-10-11 Shin Nippon Kagaku Kogyo Co Ltd マグネシア及びその製造方法
EP0354896A2 (de) * 1988-08-10 1990-02-14 Veitscher Magnesitwerke-Actien-Gesellschaft Magnesiumoxid in Form eines feinen Pulvers und seine Verwendung
JPH0350120A (ja) * 1989-07-18 1991-03-04 Ishihara Sangyo Kaisha Ltd 二酸化チタン顔料粉末の製造方法

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SU711023A1 (ru) * 1976-12-07 1980-01-25 Украинский научно-исследовательский институт огнеупоров Способ гранулировани порошков
SE7900812L (sv) * 1979-01-30 1980-07-31 Magnusson R C G Anordning vid elektrokemiska ackumulatorceller
DE3719825A1 (de) * 1987-06-13 1988-12-29 Kernforschungsz Karlsruhe Verfahren zur herstellung von keramikpulvern und vorrichtung zur durchfuehrung desselben
CA1273647A (en) * 1987-08-19 1990-09-04 Jean V. Sang Production of ceramic powders by emulsion precipitation processes and the products thereof
JPS6475030A (en) * 1987-09-14 1989-03-20 Asahi Optical Co Ltd Production of spherical ceramic particles
DE3840316C1 (https=) * 1988-11-30 1990-04-19 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De
DE3932166A1 (de) * 1989-09-27 1991-04-04 Bayer Ag Eisenoxidrot- und eisenoxidbraun-mikrogranulate, verfahren zu ihrer herstellung sowie deren verwendung

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Publication number Priority date Publication date Assignee Title
EP0041158A1 (de) * 1980-06-02 1981-12-09 Chemie Linz Aktiengesellschaft Füllstoff für Papier, Karton oder Pappe, ein Verfahren zu dessen Herstellung und Papier, Karton oder Pappe
JPS60200824A (ja) * 1984-03-27 1985-10-11 Shin Nippon Kagaku Kogyo Co Ltd マグネシア及びその製造方法
EP0354896A2 (de) * 1988-08-10 1990-02-14 Veitscher Magnesitwerke-Actien-Gesellschaft Magnesiumoxid in Form eines feinen Pulvers und seine Verwendung
AT392464B (de) * 1988-08-10 1991-04-10 Veitscher Magnesitwerke Ag Magnesiumoxid in form eines feinen pulvers und seine verwendung
JPH0350120A (ja) * 1989-07-18 1991-03-04 Ishihara Sangyo Kaisha Ltd 二酸化チタン顔料粉末の製造方法

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Title
CHEMICAL ABSTRACTS, vol. 104, no. 22, 2 June 1986, Columbus, Ohio, US; abstract no. 189189y, page 162; *
DATABASE WPI Week 9115, Derwent World Patents Index; AN 91-106963 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 193 (C - 832) 17 May 1991 (1991-05-17) *

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GB2264939A (en) 1993-09-15
ATA45892A (de) 1994-07-15
IT1270867B (it) 1997-05-13
DE4306234A1 (https=) 1993-09-16
AT398967B (de) 1995-02-27
ITMI930464A1 (it) 1994-09-10
ITMI930464A0 (it) 1993-03-10
GB9304891D0 (en) 1993-04-28
DE4306234C2 (de) 1995-09-07
GB2264939B (en) 1995-08-09

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