NO934233L - Process for producing a silica aerogel-like material - Google Patents

Process for producing a silica aerogel-like material

Info

Publication number
NO934233L
NO934233L NO934233A NO934233A NO934233L NO 934233 L NO934233 L NO 934233L NO 934233 A NO934233 A NO 934233A NO 934233 A NO934233 A NO 934233A NO 934233 L NO934233 L NO 934233L
Authority
NO
Norway
Prior art keywords
alcohol
aqueous alcohol
solution
silica
room temperature
Prior art date
Application number
NO934233A
Other languages
Norwegian (no)
Other versions
NO934233D0 (en
Inventor
Mari-Ann Einarsrud
Siv Haereid
Original Assignee
Sinvent As
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 Sinvent As filed Critical Sinvent As
Publication of NO934233D0 publication Critical patent/NO934233D0/en
Publication of NO934233L publication Critical patent/NO934233L/en

Links

Classifications

    • 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
    • C01B33/163—Preparation of silica xerogels by hydrolysis of organosilicon compounds, e.g. ethyl orthosilicate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

Fremgangsmåte for fremstilling av silika xerogel ved hydrolyse og polykondensasjon av et tetraalkoksysilan for å danne en alkogel som er et silikaskjelett omgitt av vandig alkohol, hvorefter den vandige alkohol fjernes ved fordampning. Den dannede alkogel bringes i kontakt med en løsning av et tetraalkoksysilan, kontakten opprettholdes ved eller over romtemperatur for å styrke silikaskjelettet, hvorefter gelen tørkes langsomt ved eller over romtemperatur og ved omtrentlig atmosfærisk trykk. Før alkogelen bringes i kontakt med løsningen av tetraalkoksysilan kan den vaskes med en løsning (f.eks. vandig alkohol) for å endre sammensetningen av den vandige alkohol som omgir silikaskjelettet eller endre funksjonelle grupper på overflaten av alkogelen.Process for preparing silica xerogel by hydrolysis and polycondensation of a tetraalkoxy silane to form an alkogel which is a silica skeleton surrounded by aqueous alcohol, after which the aqueous alcohol is removed by evaporation. The resulting alcogel is contacted with a solution of a tetraalkoxy silane, the contact maintained at or above room temperature to strengthen the silica skeleton, after which the gel is slowly dried at or above room temperature and at approximately atmospheric pressure. Before contacting the alcohol with the solution of tetraalkoxysilane, it can be washed with a solution (e.g., aqueous alcohol) to change the composition of the aqueous alcohol surrounding the silica skeleton or to change functional groups on the surface of the alcohol.

NO934233A 1991-05-24 1993-11-23 Process for producing a silica aerogel-like material NO934233L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO912006A NO912006D0 (en) 1991-05-24 1991-05-24 PROCEDURE FOR THE MANUFACTURE OF A SILICA-AEROGEL-LIKE MATERIAL.
PCT/NO1992/000096 WO1992020623A1 (en) 1991-05-24 1992-05-22 Process for the preparation of a silica aerogel-like material

Publications (2)

Publication Number Publication Date
NO934233D0 NO934233D0 (en) 1993-11-23
NO934233L true NO934233L (en) 1993-11-23

Family

ID=19894166

Family Applications (2)

Application Number Title Priority Date Filing Date
NO912006A NO912006D0 (en) 1991-05-24 1991-05-24 PROCEDURE FOR THE MANUFACTURE OF A SILICA-AEROGEL-LIKE MATERIAL.
NO934233A NO934233L (en) 1991-05-24 1993-11-23 Process for producing a silica aerogel-like material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO912006A NO912006D0 (en) 1991-05-24 1991-05-24 PROCEDURE FOR THE MANUFACTURE OF A SILICA-AEROGEL-LIKE MATERIAL.

Country Status (7)

Country Link
EP (1) EP0646097A1 (en)
JP (1) JPH06510268A (en)
BR (1) BR9206051A (en)
CA (1) CA2109715A1 (en)
FI (1) FI935203A (en)
NO (2) NO912006D0 (en)
WO (1) WO1992020623A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439217A1 (en) * 1994-11-03 1996-05-09 Hoechst Ag Process for the production of aerogels
DE19538333A1 (en) * 1995-10-14 1997-04-17 Basf Ag Process for the subcritical production of aerogels
US6764690B2 (en) 1996-05-29 2004-07-20 Delsitech Oy Dissolvable oxides for biological applications
DE19718740A1 (en) 1997-05-02 1998-11-05 Hoechst Ag Process for the granulation of aerogels
DE19718741A1 (en) 1997-05-02 1998-11-05 Hoechst Ag Process for compacting aerogels
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
DE59811774D1 (en) 1998-06-05 2004-09-09 Cabot Corp NANOPOROUS INTERPENETRIC ORGANIC-INORGANIC NETWORKS
US6239243B1 (en) 1999-06-10 2001-05-29 Dow Corning Corporation Method for preparing hydrophilic silica gels with high pore volume
ES2174680B1 (en) * 1999-09-03 2004-09-16 Consejo Superior De Investigaciones Cientificas LOW DENSITY INORGANIC-ORGANIC TERMOHIBRIDED MATERIALS AND THEIR OBTAINING PROCEDURE.
GB0025940D0 (en) * 2000-10-24 2000-12-13 Secr Defence Solvogels & a method of manufacturing the same
JP4170734B2 (en) 2002-11-13 2008-10-22 信越化学工業株式会社 Composition for forming porous film, porous film and method for producing the same, interlayer insulating film, and semiconductor device
US8034749B2 (en) 2002-12-31 2011-10-11 Baker Hughes Incorporated Aerogels effective to reduce drilling fluid density
EP1718564B1 (en) * 2004-02-27 2018-11-14 DelSiTech Oy Method for preparing adjustably bioresorbable sol-gel derived sio2
FR2873677B1 (en) * 2004-07-29 2007-08-17 Armines Ass Pour La Rech Et Le PROCESS FOR THE PREPARATION OF HYDROPHOBIC SILICA SEROGELS
PT103257B (en) 2005-04-05 2007-05-31 Inst Superior Tecnico METHOD OF SUBCRYTIC PRODUCTION OF SYMBOLS AND ALTERNATIVE AEROGISES HYBRID OF MODIFIED SILICA AND LATEX WITH ALCOXYSILAN GROUPS
CA2619860A1 (en) * 2005-08-25 2007-03-01 Robert R. Keller, Sr. Aerogel and method of manufacturing same
DE102008056987A1 (en) * 2008-11-12 2010-05-20 Rwe Power Ag insulating cartridge
DE102009053784A1 (en) * 2009-11-19 2011-05-26 BSH Bosch und Siemens Hausgeräte GmbH A method for producing a porous pore size SiO 2 xerogel by a bottom-up method via a precursor having organic solid skeletal supports
DE102009053782A1 (en) * 2009-11-19 2011-06-01 BSH Bosch und Siemens Hausgeräte GmbH Porous SiO2 xerogel with characteristic pore size, its drying-stable precursors and its application
PT106781A (en) 2013-02-15 2014-08-18 Inst Superior Técnico FLEXIBLE HYBRID AERIALS PREPARED IN SUBCRYTIC CONDITIONS AND PREPARATION PROCESS FOR THE SAME
JP6191012B2 (en) * 2013-12-12 2017-09-06 パナソニックＩｐマネジメント株式会社 Insulation
US10889501B2 (en) 2016-02-24 2021-01-12 Massachusetts Institute Of Technology Solar thermal aerogel receiver and materials therefor
KR102092769B1 (en) * 2016-09-12 2020-03-24 주식회사 엘지화학 Method of preparing for silica aerogel and silica aerogel prepared by the same
KR102092770B1 (en) * 2016-09-12 2020-03-24 주식회사 엘지화학 Method of preparing for silica aerogel and silica aerogel prepared by the same
CN111051386B (en) * 2017-09-01 2022-05-03 Ａｇｃ株式会社 Process for producing wet gel and dry gel
WO2019210051A1 (en) 2018-04-25 2019-10-31 Massachusetts Institute Of Technology Energy efficient soundproofing window retrofits

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422045C (en) * 1979-04-30 1984-12-11 Guy Von Dardel VIEW TO MAKE SILICA EROGEL IN THE FORM OF A SIGNIFICANT CRACKLESS, PREFERRED TRANSPARENT BLOCK AND USE OF THE SAME IN SOLAR PANELS
US4402927A (en) * 1980-04-22 1983-09-06 Dardel Guy Von Silica aerogel
DE3616133A1 (en) * 1985-09-25 1987-11-19 Merck Patent Gmbh SPHERICAL SIO (DOWN ARROW) 2 (DOWN ARROW) PARTICLES
DD283701A7 (en) * 1988-09-26 1990-10-24 Veb Leuna-Werke "Walter Ulbricht",Dd METHOD AND DEVICE FOR PRODUCING ORGANICALLY MODIFIED SILICA TAGS

Also Published As

Publication number Publication date
NO934233D0 (en) 1993-11-23
JPH06510268A (en) 1994-11-17
FI935203A (en) 1994-01-13
CA2109715A1 (en) 1992-11-26
BR9206051A (en) 1994-11-15
FI935203A0 (en) 1993-11-23
NO912006D0 (en) 1991-05-24
WO1992020623A1 (en) 1992-11-26
AU662147B2 (en) 1995-08-24
EP0646097A1 (en) 1995-04-05
AU1785292A (en) 1992-12-30

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