WO2003022779A3 - Strukturierte siliciumcarbidpartikel, verfahren zu ihrer herstellung und verwendung - Google Patents

Strukturierte siliciumcarbidpartikel, verfahren zu ihrer herstellung und verwendung Download PDF

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Publication number
WO2003022779A3
WO2003022779A3 PCT/DE2002/003235 DE0203235W WO03022779A3 WO 2003022779 A3 WO2003022779 A3 WO 2003022779A3 DE 0203235 W DE0203235 W DE 0203235W WO 03022779 A3 WO03022779 A3 WO 03022779A3
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WO
WIPO (PCT)
Prior art keywords
silicon carbide
carbide particles
structured silicon
aim
particles
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PCT/DE2002/003235
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English (en)
French (fr)
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WO2003022779A2 (de
Inventor
Hans-Peter Martin
Original Assignee
Fraunhofer Ges Forschung
Adler Joerg
Hans-Peter Martin
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Application filed by Fraunhofer Ges Forschung, Adler Joerg, Hans-Peter Martin filed Critical Fraunhofer Ges Forschung
Priority to AU2002325817A priority Critical patent/AU2002325817A1/en
Publication of WO2003022779A2 publication Critical patent/WO2003022779A2/de
Publication of WO2003022779A3 publication Critical patent/WO2003022779A3/de

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
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    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
    • C01B32/963—Preparation from compounds containing silicon
    • C01B32/97—Preparation from SiO or SiO2
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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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    • C04B35/00—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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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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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
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    • C04B35/62892—Coating the powders or the macroscopic reinforcing agents with a coating layer consisting of particles
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0022—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors
    • C04B38/0032—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors one of the precursor materials being a monolithic element having approximately the same dimensions as the final article, e.g. a paper sheet which after carbonisation will react with silicon to form a porous silicon carbide porous body
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    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
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    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Dispersion Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Filtering Materials (AREA)

Abstract

Die Erfindung bezieht sich auf das Gebiet der Keramik und betrifft strukturierte Siliciumcarbidpartikel, die beispielsweise in technischen Produkten zur Anwendung kommen können. Aufgabe der Erfindung ist es, strukturierte Siliciumcarbidpartikel anzugeben, die eine höhere spezifische Oberfläche aufweisen. Gelöst wird die Aufgabe durch strukturierte Siliciumcarbidpartikel in Form von Primär- und Sekundärpartikeln, bei dem die Sekundärpartikel morphologisch und strukturell der Morphologie und Struktur der Partikel des Ausgangsstoffes Kieselgur/Diatomeenerde entsprechen. Die Aufgabe wird weiterhin gelöst durch ein Verfahren, bei dem Kieselgur/Diatomeenerde mit einer Partikelgröße der Sekundärpartikel von 5 - 300 νm und Kohlenstoff in einen Reaktionsraum eingebracht werden und dort mit Aufheizgeschwindigkeiten von > 10 Ks-1 aufgeheizt werden. Und schließlich wird die Aufgabe gelöst durch die Verwendung der strukturierten Siliciumcarbidpartikel als Filtermittel für das Filtrieren von Fluiden.
PCT/DE2002/003235 2001-08-31 2002-08-30 Strukturierte siliciumcarbidpartikel, verfahren zu ihrer herstellung und verwendung WO2003022779A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002325817A AU2002325817A1 (en) 2001-08-31 2002-08-30 Structured silicon carbide particles, method for production and use thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10143685A DE10143685B4 (de) 2001-08-31 2001-08-31 Strukturierte Siliciumcarbidpartikel, Verfahren zu ihrer Herstellung und Verwendung
DE10143685.8 2001-08-31

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WO2003022779A2 WO2003022779A2 (de) 2003-03-20
WO2003022779A3 true WO2003022779A3 (de) 2003-08-14

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Publication number Priority date Publication date Assignee Title
FR2911869B1 (fr) * 2007-01-29 2011-05-20 Saint Gobain Ct Recherches Procede de fabrication d'un corps poreux ceramique a base de sic
CN102381870B (zh) * 2011-09-06 2013-04-17 山东理工大学 基于硅藻土的仿鲨鱼复合减阻表面的制作方法
DE102012223195A1 (de) 2012-12-14 2014-06-18 Evonik Industries Ag Hochreine pulverförmige Halbmetallcarbid- und Halbmetallnitridverbindungen, Verfahren zu deren Herstellung und dafür geeigneter Reaktor
EP3184494B1 (de) * 2015-12-21 2018-02-07 ADF Materials GmbH Chemische zusammensetzung zur herstellung von hohlen kugelförmigen glasteilchen mit hoher druckfestigkeit
CN109824377A (zh) * 2019-02-25 2019-05-31 吕莉 一种复合骨架增强陶瓷基滤料的制备方法
CN114040820A (zh) * 2019-07-02 2022-02-11 恩特格里斯公司 使用激光能量从表面移除粒子的方法

Citations (1)

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DE2848377B1 (de) * 1978-11-08 1980-01-24 Kempten Elektroschmelz Gmbh Verfahren zur Herstellung von pulverfoermigem ss-Siliciumcarbid

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CA1084235A (en) * 1976-05-24 1980-08-26 Ryo Enomoto PROCESS AND AN APPARATUS FOR PRODUCING SILICON CARBIDE CONSISTING MAINLY OF .beta.-TYPE CRYSTAL
US4284612A (en) * 1980-01-28 1981-08-18 Great Lakes Carbon Corporation Preparation of SiC whiskers
DD215577A1 (de) * 1983-05-09 1984-11-14 Getraenkekombinat Berlin Veb Filterhilfsmittel zur filtration von fluessigkeiten vorzugsweise in der getraenkeindustrie

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE2848377B1 (de) * 1978-11-08 1980-01-24 Kempten Elektroschmelz Gmbh Verfahren zur Herstellung von pulverfoermigem ss-Siliciumcarbid

Non-Patent Citations (1)

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Title
GREIL P ET AL: "Biomorphic Cellular Silicon Carbide Ceramics from Wood: I. Processing and Microstructure", JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, ELSEVIER SCIENCE PUBLISHERS, BARKING, ESSEX, GB, vol. 18, no. 14, 1 December 1998 (1998-12-01), pages 1961 - 1973, XP004144406, ISSN: 0955-2219 *

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AU2002325817A1 (en) 2003-03-24
WO2003022779A2 (de) 2003-03-20
DE10143685B4 (de) 2008-07-24
DE10143685A1 (de) 2003-07-03

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