ES2045602T3 - Piezas prensadas a base de dioxido de silicio preparado por via pirogena, procedimiento para su fabricacion y su empleo. - Google Patents

Piezas prensadas a base de dioxido de silicio preparado por via pirogena, procedimiento para su fabricacion y su empleo.

Info

Publication number
ES2045602T3
ES2045602T3 ES90104993T ES90104993T ES2045602T3 ES 2045602 T3 ES2045602 T3 ES 2045602T3 ES 90104993 T ES90104993 T ES 90104993T ES 90104993 T ES90104993 T ES 90104993T ES 2045602 T3 ES2045602 T3 ES 2045602T3
Authority
ES
Spain
Prior art keywords
silicon dioxide
pirogena
procedure
manufacture
parts based
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.)
Expired - Lifetime
Application number
ES90104993T
Other languages
English (en)
Inventor
Klaus Dr Deller
Martin Dr Forster
Helmfried Krause
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
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 filed Critical Degussa GmbH
Application granted granted Critical
Publication of ES2045602T3 publication Critical patent/ES2045602T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • 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
    • C04B35/14—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 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
    • 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
    • C04B35/63—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
    • C04B35/632—Organic additives
    • 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
    • C04B35/622—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
    • C04B35/63—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
    • C04B35/632—Organic additives
    • C04B35/6325—Organic additives based on organo-metallic compounds
    • 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
    • C04B35/622—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
    • C04B35/63—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
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • 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
    • C04B35/622—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
    • C04B35/63—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
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/635—0.5-1.0 ml/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/638—Pore volume more than 1.0 ml/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/66—Pore distribution
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Silicon Compounds (AREA)

Abstract

ESTAS PIEZAS PRENSADAS A BASE DE DIOXIDO DE SILICIO OBTENIDO A PARTIR DE PIROGENO PRESENTAN LAS SIGUIENTES CARACTERISTICAS: PERIMETRO EXTERNO : DE 2 A 15 MM; SUPERFICIE: DE 50 A 400 M2/G; VOLUMEN DE LOS POROS: DE 0,6 A 1,3 ML/G; RESISTENCIA A LA ROTURA: DE 50 A 150 N; DISTRIBUCION DE LOS POROS: NINGUN PORO EN UNA PERIMETRO MENOR DE 5 MM; COMPOSICION: < 99% SIO2; ABRASION: <1,0%; DENSIDAD APARENTE: DE 400 A 500 G/L. ESTAS PIEZAS SON FABRICADAS, SI EL DIOXIDO DE SILICIO, OBTENIDO A PARTIR DE PIROGENO, SE CONSIGUE HOMOGENEIZAR CON UREA, CELULOSA METILICA Y/O ESTEARATO DE MAGNESIO, GRAFITO O ESTERARATO DE ALUMINIO CON UNA ADICION DE AGUA. ES TAMBIEN NECESARIO QUE EL DIOXIDO DE SILICIO SE SEQUE A UNA TEMPERATURA DE 80 A 120 C Y SEA REDUCIDO A POLVO. EL POLVO HA DE SER PRENSADO PARA DAR LUGAR A LAS PIEZAS. ADEMAS EL DIOXIDO DE SILICIO HA DE SER SOMETIDO A UNA TEMPERATURA DE 400 A 1200 C DURANTE UN INTERVALO DE TIEMPO COMPRENDIDO ENTRE 0,5 Y 8 HORAS
ES90104993T 1989-04-17 1990-03-16 Piezas prensadas a base de dioxido de silicio preparado por via pirogena, procedimiento para su fabricacion y su empleo. Expired - Lifetime ES2045602T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3912504A DE3912504A1 (de) 1989-04-17 1989-04-17 Presslinge auf basis von pyrogen hergestelltem siliciumdioxid, verfahren zu ihrer herstellung und ihre verwendung

Publications (1)

Publication Number Publication Date
ES2045602T3 true ES2045602T3 (es) 1994-01-16

Family

ID=6378804

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90104993T Expired - Lifetime ES2045602T3 (es) 1989-04-17 1990-03-16 Piezas prensadas a base de dioxido de silicio preparado por via pirogena, procedimiento para su fabricacion y su empleo.

Country Status (8)

Country Link
US (1) US5086031A (es)
EP (1) EP0393356B1 (es)
JP (1) JPH0660009B2 (es)
DE (2) DE3912504A1 (es)
ES (1) ES2045602T3 (es)
LT (1) LTIP1489A (es)
RU (1) RU1830050C (es)
UA (1) UA13034A (es)

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US5128114A (en) * 1989-04-14 1992-07-07 E. I. Du Pont De Nemours And Company Silica microspheres, method of improving attrition resistance
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DE4142898A1 (de) * 1991-12-23 1993-06-24 Sued Chemie Ag Formlinge auf der basis von pyrogener kieselsaeure
GB9214688D0 (en) * 1992-07-10 1992-08-19 Bp Chem Int Ltd Olfin hydration catalysts
DE4239876C1 (de) * 1992-11-27 1994-07-28 Degussa Verfahren zur gleichmäßigen und reproduzierbaren Schalenimprägnierung von als Schüttgut vorliegenden Festbett-Katalysatorträgern und Vorrichtung zur Durchführung des Verfahrens
DE4242227A1 (de) * 1992-12-15 1994-06-16 Heraeus Quarzglas Katalysatorträger und Verfahren für seine Herstellung
FR2709680B1 (fr) * 1993-09-10 1995-10-27 Inst Francais Du Petrole Catalyseur d'alkylation de paraffines.
DE4403187C1 (de) * 1994-02-02 1995-09-28 Degussa Geformter Kupfer-Katalysator für die selektive Hydrierung von Furfural zu Furfurylalkohol
DE4427574C2 (de) * 1994-08-04 1997-08-14 Degussa Preßlinge auf Basis von pyrogen hergestelltem Siliciumdioxid
DE19501891C1 (de) * 1995-01-23 1996-09-26 Degussa Verfahren zur Herstellung eines Trägerkatalysators und seine Verwendung für die Produktion von Vinylacetat
EP0959064B1 (en) 1995-08-02 2001-12-12 BP Chemicals Limited Ester synthesis
US5959164A (en) * 1996-01-23 1999-09-28 Degussa Huls Aktiengesellschaft Use of catalysts based on catalyst supports containing silicon dioxide for catalytic reactions under hydrothermal conditions
DE19607494A1 (de) * 1996-02-28 1997-09-04 Degussa Verwendung von Katalysatoren auf Basis von Siliziumdioxid enthaltenden Katalysatorträgern für katalytische Umsetzungen unter hydrothermalen Bedingungen
DE19619961A1 (de) * 1996-05-17 1997-11-20 Degussa Preßlinge auf Basis von pyrogen hergestelltem Siliciumdioxid
US6207610B1 (en) 1996-05-17 2001-03-27 Degussa-Huls Ag Compacts based on pyrogenically produced silicon dioxide
DE19750238A1 (de) * 1997-11-13 1999-05-27 Degussa Preßlinge auf Basis von pyrogen hergestelltem Siliciumdioxid
JPH11319584A (ja) * 1998-05-11 1999-11-24 Nippon Kecchen Kk 粒状触媒用担体の製造方法および該担体を用いた触媒の製造方法
DE19828491A1 (de) * 1998-06-26 1999-12-30 Degussa Formkörper auf Basis von Siliciumdioxid
DE19843845A1 (de) 1998-09-24 2000-03-30 Degussa Formkörper, bestehend aus pyrogenem Mischoxid und deren Verwendung
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RU2160156C1 (ru) 1999-12-28 2000-12-10 Закрытое акционерное общество "Катализаторная компания" Высококремнеземистый носитель, катализатор для гетерогенных реакций и способ его получения
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US9199845B2 (en) * 2006-11-22 2015-12-01 Bp Chemicals Limited Process for producing alkenes oxygenates by using supported heteropolyacid catalysts
DE102006058813A1 (de) 2006-12-13 2008-06-19 Wacker Chemie Ag Verfahren zur Herstellung von stabilen, hochreinen Formkörpern aus pyrogenen Metalloxiden ohne Zusatz von Bindemitteln
DE102006058799A1 (de) 2006-12-13 2008-06-19 Wacker Chemie Ag Verfahren zur Herstellung von stabilen Binder-freien hochreinen Formkörpern aus Metalloxiden und deren Anwendung
JP5038006B2 (ja) * 2007-04-16 2012-10-03 株式会社日本触媒 排ガス処理用触媒、当該触媒の製造方法及び当該触媒を用いた排ガス中の有機ハロゲン化合物の処理方法
JP2010179267A (ja) * 2009-02-07 2010-08-19 Kosei:Kk 担体およびその製造方法
AT516490B1 (de) * 2014-12-19 2016-06-15 Ge Jenbacher Gmbh & Co Og Verfahren zum Betreiben einer funkengezündeten Brennkraftmaschine
JP6952764B2 (ja) 2016-07-29 2021-10-20 エボニック オペレーションズ ゲーエムベーハー 疎水性の断熱材料の製造方法
MX2019008516A (es) 2017-01-18 2019-09-18 Evonik Degussa Gmbh Material de aislamiento termico granulado y procedimiento para producirlo.
DE102017209782A1 (de) 2017-06-09 2018-12-13 Evonik Degussa Gmbh Verfahren zur Wärmedämmung eines evakuierbaren Behälters
PT3447038T (pt) * 2017-08-25 2020-11-27 Evonik Degussa Gmbh Granulado de isolamento térmico com hidrofobicidade reduzida
KR102543511B1 (ko) * 2018-07-17 2023-06-15 에보니크 오퍼레이션즈 게엠베하 발연 실리카 과립을 기재로 하는 단열성 조성물 및 그의 제조 방법
EP3597615A1 (en) 2018-07-17 2020-01-22 Evonik Operations GmbH Granular mixed oxide material and thermal insulating composition on its basis
JP7086266B2 (ja) 2018-07-18 2022-06-17 エボニック オペレーションズ ゲーエムベーハー シリカをベースとする成形断熱体を周囲圧力で疎水化する方法

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DE3406185A1 (de) * 1984-02-21 1985-09-05 Degussa Ag, 6000 Frankfurt Verfahren zur herstellung von presslingen aus pyrogen hergestellten oxiden
DE3741846A1 (de) * 1987-02-26 1989-01-26 Degussa Verfahren zum verdichten von pyrogen hergestellter kieselsaeure
DE3803895C1 (es) * 1988-02-09 1989-04-13 Degussa Ag, 6000 Frankfurt, De
DE3836934A1 (de) * 1988-10-29 1990-05-03 Heraeus Schott Quarzschmelze Verfahren zum reinigen von teilchenfoermigem siliziumdioxid

Also Published As

Publication number Publication date
UA13034A (uk) 1997-02-28
EP0393356B1 (de) 1993-09-01
LTIP1489A (en) 1995-06-26
EP0393356A1 (de) 1990-10-24
DE3912504A1 (de) 1990-10-18
JPH0660009B2 (ja) 1994-08-10
JPH02293313A (ja) 1990-12-04
RU1830050C (ru) 1993-07-23
US5086031A (en) 1992-02-04
DE59002517D1 (de) 1993-10-07

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