ES2139392T3 - Procedimiento para la fabricacion de aerogeles modificados organicamente en los cuales se extraen las sales formadas. - Google Patents

Procedimiento para la fabricacion de aerogeles modificados organicamente en los cuales se extraen las sales formadas.

Info

Publication number
ES2139392T3
ES2139392T3 ES96938991T ES96938991T ES2139392T3 ES 2139392 T3 ES2139392 T3 ES 2139392T3 ES 96938991 T ES96938991 T ES 96938991T ES 96938991 T ES96938991 T ES 96938991T ES 2139392 T3 ES2139392 T3 ES 2139392T3
Authority
ES
Spain
Prior art keywords
silicic acid
gel
organically modified
acid sol
extracted
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
ES96938991T
Other languages
English (en)
Inventor
Fritz Schwertfeger
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.)
Cabot Corp
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 ES2139392T3 publication Critical patent/ES2139392T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/157—After-treatment of gels
    • C01B33/158—Purification; Drying; Dehydrating
    • 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
    • C01B33/157—After-treatment of gels
    • C01B33/158—Purification; Drying; Dehydrating
    • C01B33/1585—Dehydration into aerogels
    • 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
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • C01B33/142—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates
    • C01B33/143—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates of aqueous solutions of silicates
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C04B14/064—Silica aerogel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Silicon Compounds (AREA)

Abstract

LA INVENCION DESCRIBE UN PROCEDIMIENTO PARA FABRICAR AEROGELES ORGANICAMENTE MODIFICADOS EN LOS QUE A) SE PREPARA UN SOL DE ACIDO SILICICO CON UN PH DE ( 4,0 A PARTIR DE UNA SOLUCION ACUOSA DE SILICATO SODICO CON LA AYUDA DE AL MENOS UN ACIDO ORGANICO Y/O INORGANICO; B) EL SOL DE ACIDO SILICICO SE POLICONDENSA POR LA ADICION DE UNA BASE PARA FORMAR SIO 2 GEL, C) EL GEL OBTENIDO EN EL PASO B) SE LAVA CON UN DISOLVENTE ORGANICO HASTA QUE EL CONTENIDO DE AGUA DEL GEL SEA ( 5 % DEL PESO, D) LA SUPERFICIE DEL GEL OBTENIDO EN EL PASO C) SE SILILA Y E) EL GEL DE SUPERFICIE SILILADA OBTENIDO EN EL PASO D) SE SECA. EL PROCESO SE CARACTERIZA PORQUE AL MENOS UN ACIDO FORMA SALES CON LOS CATIONES DE SILICATO SODICO EN EL SOL DE ACIDO SILICICO Y ESTAS SALES SE DISUELVEN CON DIFICULTAD. ANTES DEL PASO B) LAS SALES QUE SE DISUELVEN CON DIFICULTAD SE PRECIPITAN EN LA MAYOR MEDIDA POSIBLE Y SE SEPARAN DEL SOL DE ACIDO SILICICO.
ES96938991T 1995-11-09 1996-11-05 Procedimiento para la fabricacion de aerogeles modificados organicamente en los cuales se extraen las sales formadas. Expired - Lifetime ES2139392T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19541715A DE19541715A1 (de) 1995-11-09 1995-11-09 Verfahren zur Herstellung von organisch modifizierten Aerogelen, bei dem die gebildeten Salze ausgefällt werden

Publications (1)

Publication Number Publication Date
ES2139392T3 true ES2139392T3 (es) 2000-02-01

Family

ID=7776975

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96938991T Expired - Lifetime ES2139392T3 (es) 1995-11-09 1996-11-05 Procedimiento para la fabricacion de aerogeles modificados organicamente en los cuales se extraen las sales formadas.

Country Status (12)

Country Link
US (1) US6210751B1 (es)
EP (1) EP0859740B1 (es)
JP (1) JP2000501370A (es)
KR (1) KR100501758B1 (es)
CN (1) CN1087271C (es)
AT (1) ATE184862T1 (es)
CA (1) CA2237096A1 (es)
DE (2) DE19541715A1 (es)
ES (1) ES2139392T3 (es)
MX (1) MX9803701A (es)
NO (1) NO982069D0 (es)
WO (1) WO1997017288A1 (es)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648798C2 (de) * 1996-11-26 1998-11-19 Hoechst Ag Verfahren zur Herstellung von organisch modifizierten Aerogelen durch Oberflächenmodifikation des wäßrigen Gels (ohne vorherigen Lösungsmitteltausch) und anschließender Trocknung
DE19718740A1 (de) 1997-05-02 1998-11-05 Hoechst Ag Verfahren zur Granulierung von Aerogelen
DE19718741A1 (de) 1997-05-02 1998-11-05 Hoechst Ag Verfahren zur Kompaktierung von Aerogelen
DE19752456A1 (de) 1997-11-26 1999-05-27 Hoechst Ag Verfahren zur Herstellung von organisch modifizierten Aerogelen auf Basis von Siliciumtetrachlorid
DE19756633A1 (de) 1997-12-19 1999-06-24 Hoechst Ag Verfahren zur unterkritischen Trocknung von Lyogelen zu Aerogelen
DE19801004A1 (de) 1998-01-14 1999-07-15 Cabot Corp Verfahren zur Herstellung von im wesentlichen kugelförmigen Lyogelen in wasserunlöslichen Silylierungsmitteln
ITLE20050008A1 (it) * 2005-05-24 2006-11-25 Megatex S P A Filati di origine naturale e sintetica con caratteristiche di barriera al trasporto di calore ottenuti attraverso la deposizione di aerogel.
US7618608B1 (en) 2005-12-13 2009-11-17 Keller Companies, Inc. Aerogel and method of manufacturing same
US7750056B1 (en) 2006-10-03 2010-07-06 Sami Daoud Low-density, high r-value translucent nanocrystallites
WO2008044873A1 (en) * 2006-10-10 2008-04-17 Korea Institute Of Industrial Technology Method for preparing permanently hydrophobic aerogel and permanently hydrophobic aerogel prepared by using the method
KR100824291B1 (ko) * 2007-02-13 2008-04-22 주식회사 넵 표면개질된 나노크기입자의 실리카 제조 방법
KR100848856B1 (ko) * 2007-03-27 2008-07-29 주식회사 넵 영구적 소수성을 갖는 에어로겔의 제조 방법 및 이로부터제조된 영구적 소수성을 갖는 에어로겔
KR100868989B1 (ko) * 2007-05-23 2008-11-17 엠파워(주) 초소수성 실리카 에어로겔 분말의 제조방법
KR100924782B1 (ko) 2007-09-19 2009-11-03 주식회사 넵 영구적인 소수성을 갖는 고투광성 입상형 에어로겔제조방법 및 이로부터 제조된 입상형 에어로겔
KR20090032707A (ko) * 2007-09-28 2009-04-01 엠파워(주) 초소수성 실리카계 분말의 제조방법
CN101468907B (zh) * 2007-12-27 2012-03-07 上海暄洋化工材料科技有限公司 一种SiO2纳米复合绝热保温膏及其制备工艺
CN102198943B (zh) * 2011-04-21 2013-03-13 江苏大学 一种低成本常压干燥制备不同接触角硅基气凝胶的方法
CN102642841B (zh) * 2012-04-25 2016-07-27 陕西得波材料科技有限公司 一种常压制备低密度高性能SiO2气凝胶的方法
CN103272539B (zh) * 2013-05-07 2015-08-12 李光武 减压干燥制备气凝胶的方法
MX361776B (es) * 2013-11-19 2018-12-17 Hecker Electronica Potencia Y Procesos S A Proceso de superposicion de corriente alterna sobre la corriente continua en procesos electroliticos.
KR101687952B1 (ko) * 2013-12-31 2016-12-20 연세대학교 산학협력단 실리카 에어로겔의 제조방법과 상기 방법을 이용하여 제조된 실리카 에어로겔
WO2015192731A1 (zh) * 2014-06-18 2015-12-23 金承黎 一种硅基一元或多元氧化物气凝胶材料及其制备方法
CN104030301B (zh) * 2014-06-18 2016-03-23 金承黎 一种二氧化硅气凝胶材料及其制备方法
ITUB20150924A1 (it) 2015-05-29 2016-11-29 N A M Nano Analysis & Mat S R L Processo sol-gel per la produzione di aerogeli di silice
CN104944887A (zh) * 2015-07-01 2015-09-30 卓达新材料科技集团有限公司 刚性二氧化硅气凝胶绝热板的制备方法
KR101938369B1 (ko) 2015-12-09 2019-01-14 주식회사 엘지화학 산화금속-실리카 복합 에어로겔의 제조방법 및 이로부터 제조된 산화금속-실리카 복합 에어로겔
WO2017099488A1 (ko) * 2015-12-09 2017-06-15 주식회사 엘지화학 산화금속-실리카 복합 에어로겔의 제조방법 및 이로부터 제조된 산화금속-실리카 복합 에어로겔
KR102002050B1 (ko) 2015-12-15 2019-10-21 주식회사 엘지화학 산화금속-실리카 복합 에어로겔의 제조방법 및 이로부터 제조된 산화금속-실리카 복합 에어로겔
CN105582866B (zh) * 2016-03-08 2022-12-09 浙江圣润纳米科技有限公司 一种射频辐射快速制备气凝胶的方法及生产线
CN106185959B (zh) 2016-09-14 2018-04-06 纳诺科技有限公司 一种以微乳液为前体快速制备气凝胶的方法
KR102192354B1 (ko) 2017-09-08 2020-12-17 주식회사 엘지화학 산화금속-실리카 복합 에어로겔의 제조방법 및 이로부터 제조된 산화금속-실리카 복합 에어로겔
JP6870108B2 (ja) 2017-09-08 2021-05-12 エルジー・ケム・リミテッド 酸化金属−シリカ複合エアロゲルの製造方法及びそれにより製造された酸化金属−シリカ複合エアロゲル
US11332378B2 (en) 2018-11-27 2022-05-17 Lg Chem, Ltd. Method for producing silica aerogel
KR102693340B1 (ko) * 2020-10-15 2024-08-09 주식회사 엘지화학 에어로겔 블랭킷의 제조방법 및 이로부터 제조된 에어로겔 블랭킷
CN115304066A (zh) * 2022-08-22 2022-11-08 湖北硅金凝节能减排科技有限公司 一种耐高温气凝胶粉体的制备方法

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US2285477A (en) * 1942-06-09 Method of producing sols
US2927083A (en) * 1955-04-11 1960-03-01 Monsanto Chemicals Process for the preparation of silica gel and silica aerogels
DE3346180C2 (de) 1983-12-21 1996-05-15 Micropore International Ltd Starrer Wärmedämmkörper
DE4342548A1 (de) 1993-12-14 1995-06-22 Hoechst Ag Xerogele, Verfahren zu ihrer Herstellung, sowie ihre Verwendung
US5795556A (en) * 1993-12-14 1998-08-18 Hoechst Ag Xerogels and process for their preparation
DE4430669A1 (de) * 1994-08-29 1996-03-07 Hoechst Ag Verfahren zur Herstellung von faserverstärkten Xerogelen, sowie ihre Verwendung

Also Published As

Publication number Publication date
KR19990067369A (ko) 1999-08-16
NO982069L (no) 1998-05-06
ATE184862T1 (de) 1999-10-15
CN1087271C (zh) 2002-07-10
JP2000501370A (ja) 2000-02-08
EP0859740B1 (de) 1999-09-22
DE19541715A1 (de) 1997-05-15
EP0859740A1 (de) 1998-08-26
NO982069D0 (no) 1998-05-06
MX9803701A (es) 1998-11-30
US6210751B1 (en) 2001-04-03
KR100501758B1 (ko) 2005-10-07
WO1997017288A1 (de) 1997-05-15
DE59603187D1 (de) 1999-10-28
CN1204300A (zh) 1999-01-06
CA2237096A1 (en) 1997-05-15

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