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DK0658513T3 - Process for making xerogels - Google Patents

Process for making xerogels

Info

Publication number
DK0658513T3
DK0658513T3 DK94119307T DK94119307T DK0658513T3 DK 0658513 T3 DK0658513 T3 DK 0658513T3 DK 94119307 T DK94119307 T DK 94119307T DK 94119307 T DK94119307 T DK 94119307T DK 0658513 T3 DK0658513 T3 DK 0658513T3
Authority
DK
Denmark
Prior art keywords
xerogels
gel
prepared
sio2
making
Prior art date
Application number
DK94119307T
Other languages
Danish (da)
Inventor
Rolf-Michael Dr Jansen
Andreas Dr Zimmermann
Eric Jacquinot
Douglas M Prof Smith
Original Assignee
Cabot Corp
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 Cabot Corp filed Critical Cabot Corp
Application granted granted Critical
Publication of DK0658513T3 publication Critical patent/DK0658513T3/en

Links

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
    • C04B38/0045—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
    • C01B33/1543—Preparation of hydrogels by acidic treatment of aqueous silicate solutions using ion exchangers
    • 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
    • C01B33/16—Preparation of silica xerogels
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Silicon Compounds (AREA)
  • Steroid Compounds (AREA)
  • Silicon Polymers (AREA)
  • Glass Melting And Manufacturing (AREA)

Abstract

The invention relates to a process for preparing modified SiO2 gels, known as "xerogels", and also to the xerogels thus prepared themselves and their use. The xerogels are prepared by acidifying an aqueous waterglass solution, polymerising the silicic acid thus formed by addition of a base to give an SiO2 gel, substantially washing the water from the gel using an organic solvent, reacting the gel with a silylation agent and then drying it at from -30 to 200 DEG C and at from 0.001 to 20 bar.
DK94119307T 1993-12-14 1994-12-07 Process for making xerogels DK0658513T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4342548A DE4342548A1 (en) 1993-12-14 1993-12-14 Xerogels, processes for their manufacture and their use

Publications (1)

Publication Number Publication Date
DK0658513T3 true DK0658513T3 (en) 1999-11-15

Family

ID=6504933

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94119307T DK0658513T3 (en) 1993-12-14 1994-12-07 Process for making xerogels

Country Status (6)

Country Link
EP (1) EP0658513B1 (en)
JP (1) JP3854645B2 (en)
AT (1) ATE181040T1 (en)
DE (2) DE4342548A1 (en)
DK (1) DK0658513T3 (en)
ES (1) ES2134311T3 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404701A1 (en) * 1994-02-15 1995-08-17 Hoechst Ag Composite foams, processes for their production and their use
DE4430669A1 (en) * 1994-08-29 1996-03-07 Hoechst Ag Process for the production of fiber-reinforced xerogels and their use
DE19502453C1 (en) * 1995-01-27 1996-09-05 Hoechst Ag Process for the production of modified Si0¶2¶ aerogels and their use
DE19506141A1 (en) 1995-02-22 1996-08-29 Hoechst Ag Use of aerogels in pharmacy, cosmetics and crop protection
DE19525021A1 (en) * 1995-07-10 1997-01-16 Hoechst Ag Process for the production of organically modified aerogels and their use
DE19538333A1 (en) * 1995-10-14 1997-04-17 Basf Ag Process for the subcritical production of aerogels
DE19541279A1 (en) * 1995-11-06 1997-05-07 Hoechst Ag Process for the production of organically modified aerogels using alcohols
DE19541715A1 (en) * 1995-11-09 1997-05-15 Hoechst Ag Process for the production of organically modified aerogels, in which the salts formed are precipitated
DE19541992A1 (en) * 1995-11-10 1997-05-15 Hoechst Ag Process for the production of organically modified aerogels using alcohols, in which the salts formed are precipitated
DE19631267C1 (en) * 1996-08-02 1998-04-30 Hoechst Ag Process for the production of organically modified aerogels
US5807501A (en) * 1997-02-20 1998-09-15 Dow Corning Corporation Neutral-aged hydrophobic organosilicate-modified silica gels
US5708069A (en) * 1997-02-24 1998-01-13 Dow Corning Corporation Method for making hydrophobic silica gels under neutral conditions
US5789495A (en) * 1997-02-24 1998-08-04 Dow Corning Corporation Method for making hydrophobic organosilicate-modified silica gels under neutral conditions
US5762829A (en) * 1997-03-05 1998-06-09 Armstrong World Industries, Inc. Wet silica gels for aerogel and xerogel thermal insulation and processes for the wet gels
CN1244400C (en) * 1997-04-18 2006-03-08 卡伯特公司 Application of airgel as adsorbent
DE19718741A1 (en) 1997-05-02 1998-11-05 Hoechst Ag Process for compacting aerogels
DE19718740A1 (en) 1997-05-02 1998-11-05 Hoechst Ag Process for the granulation of aerogels
DE19752456A1 (en) * 1997-11-26 1999-05-27 Hoechst Ag Production of organically modified silica aerogel
DE19756633A1 (en) 1997-12-19 1999-06-24 Hoechst Ag Lyogels and aerogels subcritically dried in a packed bed with minimal particle breakdown
DE19801004A1 (en) * 1998-01-14 1999-07-15 Cabot Corp Production of spherical lyogel useful as precursor for permanently hydrophobic aerogel
KR100705587B1 (en) * 2006-07-25 2007-04-09 한국에너지기술연구원 Method for producing airgel using sodium silicate and airgel tile manufactured by the method
EP2185281A1 (en) * 2007-09-10 2010-05-19 Shell Internationale Research Maatschappij B.V. Process for stabilising a fischer tropsch catalyst
US9216909B2 (en) 2010-10-25 2015-12-22 Tokuyama Corporation Aerogel and method for manufacture thereof
US9199853B2 (en) 2011-04-28 2015-12-01 Tokuyama Corporation Metal oxide powder and method for manufacture thereof
FR2981341B1 (en) 2011-10-14 2018-02-16 Enersens PROCESS FOR MANUFACTURING XEROGELS
DE102014101709A1 (en) * 2013-12-20 2015-07-16 Interbran Systems Ag Process for the preparation of aerogels
JP6330145B2 (en) 2014-06-17 2018-05-30 パナソニックＩｐマネジメント株式会社 Method for producing xerogel
CN104030301B (en) * 2014-06-18 2016-03-23 金承黎 A kind of silica aerogel material and preparation method thereof
EP3219671A4 (en) 2014-11-11 2017-11-15 Panasonic Intellectual Property Management Co., Ltd. Aerogel and manufacturing method thereof
KR101955307B1 (en) 2015-11-27 2019-05-30 주식회사 엘지화학 Preparation method of hydrophobic silica aerogel and hydrophobic silica aerogel produced by the same
JP6655776B2 (en) 2015-12-17 2020-02-26 パナソニックＩｐマネジメント株式会社 Silica airgel, heat insulating material and method for producing silica airgel
CN107266774B (en) * 2016-04-08 2021-04-30 南京唯才新能源科技有限公司 Aerogel composite material and preparation method thereof
EP3272516B1 (en) 2016-07-22 2021-03-03 Panasonic Intellectual Property Management Co., Ltd. Heat-insulation material and production method thereof
CN106185959B (en) 2016-09-14 2018-04-06 纳诺科技有限公司 A kind of method that aeroge is quickly prepared using microemulsion as precursor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837384C (en) * 1949-05-11 1952-04-28 Ultrakust Geraetebau Dr Ing Os Manufacturing process for silica-containing coupling substances for sonic or ultrasonic energy transmission
GB682574A (en) 1950-05-04 1952-11-12 Dow Corning Ltd Improvements in or relating to silica compositions
DE3914850A1 (en) 1989-05-05 1990-11-08 Basf Ag THERMAL INSULATING MATERIAL BASED ON PIGMENT-BASED SILICONE ACULATE ARRAY
EP0497966B1 (en) 1990-08-23 1997-10-29 THE REGENTS OF THE UNIVERSITY OF CALIFORNIA as represented by Lawrence Livermore National Laboratory A METHOD FOR PRODUCING METAL OXIDE AEROGELS HAVING DENSITIES LESS THAN 0.02 g/cm?3

Also Published As

Publication number Publication date
EP0658513B1 (en) 1999-06-09
EP0658513A1 (en) 1995-06-21
JPH07257918A (en) 1995-10-09
JP3854645B2 (en) 2006-12-06
DE4342548A1 (en) 1995-06-22
ES2134311T3 (en) 1999-10-01
DE59408391D1 (en) 1999-07-15
ATE181040T1 (en) 1999-06-15

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