[go: up one dir, main page]

IT1251937B - Xerogels di silice ad alta porosita` e processo per la loro preparazione. - Google Patents

Xerogels di silice ad alta porosita` e processo per la loro preparazione.

Info

Publication number
IT1251937B
IT1251937B ITMI912741A ITMI912741A IT1251937B IT 1251937 B IT1251937 B IT 1251937B IT MI912741 A ITMI912741 A IT MI912741A IT MI912741 A ITMI912741 A IT MI912741A IT 1251937 B IT1251937 B IT 1251937B
Authority
IT
Italy
Prior art keywords
high porosity
preparation
silica xerogels
xerogels
porosity silica
Prior art date
Application number
ITMI912741A
Other languages
English (en)
Inventor
Luigi Balducci
Franco Montino
Guido Cogliati
Original Assignee
Donegani Guido Ist
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 Donegani Guido Ist filed Critical Donegani Guido Ist
Publication of ITMI912741A0 publication Critical patent/ITMI912741A0/it
Priority to ITMI912741A priority Critical patent/IT1251937B/it
Priority to EP92203129A priority patent/EP0537851B1/en
Priority to DK92203129.9T priority patent/DK0537851T3/da
Priority to AT92203129T priority patent/ATE135667T1/de
Priority to ES92203129T priority patent/ES2084264T3/es
Priority to DE69209213T priority patent/DE69209213T2/de
Priority to US07/960,829 priority patent/US5270027A/en
Priority to JP30603792A priority patent/JP3386159B2/ja
Publication of ITMI912741A1 publication Critical patent/ITMI912741A1/it
Application granted granted Critical
Publication of IT1251937B publication Critical patent/IT1251937B/it

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

Landscapes

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

Abstract

L'invenzione si riferisce a xerogels di silice ad elevata porosità e a un processo per la loro preparazione consistente nel sottoporre alcogels di silice a trattamenti termici in presenza di composti organici contenenti gruppi amminici ed ossidrilici.Gli xerogels sono caratterizzati da un volume totale dei pori ?2 cc/g e da un diametro medio dei pori ?100.
ITMI912741A 1991-10-17 1991-10-17 Xerogels di silice ad alta porosita` e processo per la loro preparazione. IT1251937B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ITMI912741A IT1251937B (it) 1991-10-17 1991-10-17 Xerogels di silice ad alta porosita` e processo per la loro preparazione.
ES92203129T ES2084264T3 (es) 1991-10-17 1992-10-12 Xerogeles de silice de alta porosidad y su procedimiento de preparacion.
DK92203129.9T DK0537851T3 (da) 1991-10-17 1992-10-12 Silica-xerogeler med høj porøsitet samt fremgangsmåde til fremstilling deraf
AT92203129T ATE135667T1 (de) 1991-10-17 1992-10-12 Kieselsäurexerogele und deren herstellung
EP92203129A EP0537851B1 (en) 1991-10-17 1992-10-12 High-porosity silica xerogels and their preparation process
DE69209213T DE69209213T2 (de) 1991-10-17 1992-10-12 Kieselsäurexerogele und deren Herstellung
US07/960,829 US5270027A (en) 1991-10-17 1992-10-14 Process of preparing high-porosity silica xerogels using alkanolamines
JP30603792A JP3386159B2 (ja) 1991-10-17 1992-10-19 高気孔率のシリカキセロゲルおよびその製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI912741A IT1251937B (it) 1991-10-17 1991-10-17 Xerogels di silice ad alta porosita` e processo per la loro preparazione.

Publications (3)

Publication Number Publication Date
ITMI912741A0 ITMI912741A0 (it) 1991-10-17
ITMI912741A1 ITMI912741A1 (it) 1993-04-18
IT1251937B true IT1251937B (it) 1995-05-27

Family

ID=11360880

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI912741A IT1251937B (it) 1991-10-17 1991-10-17 Xerogels di silice ad alta porosita` e processo per la loro preparazione.

Country Status (8)

Country Link
US (1) US5270027A (it)
EP (1) EP0537851B1 (it)
JP (1) JP3386159B2 (it)
AT (1) ATE135667T1 (it)
DE (1) DE69209213T2 (it)
DK (1) DK0537851T3 (it)
ES (1) ES2084264T3 (it)
IT (1) IT1251937B (it)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1251939B (it) * 1991-10-17 1995-05-27 Donegani Guido Ist Procedimento per la preparazione di materiali a base di ossidi inorganici con granulometria monodispersa e materiali cosi ottenuti.
US5420081A (en) * 1994-03-31 1995-05-30 The Regents Of The University Of California Office Of Technology Transfer Preparation of fullerene/glass composites
US5470802A (en) * 1994-05-20 1995-11-28 Texas Instruments Incorporated Method of making a semiconductor device using a low dielectric constant material
DE4429533A1 (de) * 1994-08-19 1996-02-22 Cerdec Ag Wasser- und hydroxylgruppenfreie Gele und Xerogele, Verfahren zu deren Herstellung und deren Verwendung
US5503582A (en) * 1994-11-18 1996-04-02 Micron Display Technology, Inc. Method for forming spacers for display devices employing reduced pressures
DE19506141A1 (de) 1995-02-22 1996-08-29 Hoechst Ag Verwendung von Aerogelen in der Pharmazie, in der Kosmetik und im Pflanzenschutz
IT1275412B (it) * 1995-06-01 1997-08-05 Enichem Spa Procedimento per la preparazione di ossidi misti silice-allumina porosi in forma sferica
DE19538333A1 (de) * 1995-10-14 1997-04-17 Basf Ag Verfahren zur unterkritischen Herstellung von Aerogelen
US6380105B1 (en) 1996-11-14 2002-04-30 Texas Instruments Incorporated Low volatility solvent-based method for forming thin film nanoporous aerogels on semiconductor substrates
US6319852B1 (en) 1995-11-16 2001-11-20 Texas Instruments Incorporated Nanoporous dielectric thin film formation using a post-deposition catalyst
US6130152A (en) 1995-11-16 2000-10-10 Texas Instruments Incorporated Aerogel thin film formation from multi-solvent systems
US5807607A (en) * 1995-11-16 1998-09-15 Texas Instruments Incorporated Polyol-based method for forming thin film aerogels on semiconductor substrates
ES2167626T3 (es) * 1996-02-22 2002-05-16 Enichem Spa Materiales compuestos a base de silice y zeolita en forma esferica y procedimiento para su preparacion.
DE19708285C2 (de) * 1997-02-28 2002-04-11 Excor Korrosionsschutz Technol Korrosionsinhibierendes Kompositmaterial, Verfahren zu dessen Herstellung und seine Verwendung
US5989768A (en) * 1997-03-06 1999-11-23 Cabot Corporation Charge-modified metal oxides with cyclic silazane and electrostatographic systems incorporating same
AU2105499A (en) * 1998-01-15 1999-08-02 Cabot Corporation Polyfunctional organosilane treatment of silica
WO1999036480A1 (en) * 1998-01-15 1999-07-22 Cabot Corporation Method of preparing treated silica
AU765881B2 (en) * 1998-08-21 2003-10-02 University Of South Florida Capillary column and method of making
US6174926B1 (en) 1999-01-13 2001-01-16 Cabot Corporation Method of preparing organically modified silica
US6602819B2 (en) * 2000-01-05 2003-08-05 E. I. Du Pont De Nemours And Company Process for the reduction of carbon monoxide and carbonyl sulfide emissions
WO2001058562A1 (en) 2000-02-09 2001-08-16 University Of South Florida Sol-gel monolithic column with optical window and method of making
US20060113231A1 (en) * 2000-10-23 2006-06-01 Abdul Malik Sample pre-concentration tubes with sol-gel surface coatings and/or sol-gel monolithic beds
US20040129141A1 (en) 2002-03-08 2004-07-08 Abdul Malik High efficiency sol-gel gas chromatography column
ITNO20020010A1 (it) * 2002-07-12 2004-01-12 Novara Technology Srl "metodo per la preparazione di aerogeli"
US7407568B1 (en) * 2002-11-08 2008-08-05 University Of South Florida Method of using sol-gel coatings for on-line preconcentration of amino acids in capillary electrophoresis
US7622191B2 (en) * 2004-07-19 2009-11-24 University Of South Florida Titania-based coating for capillary microextraction
US20060013981A1 (en) * 2004-07-19 2006-01-19 University Of South Florida Polytetrahydrofuran-Based Coating for Capillary Microextraction
CN101203329B (zh) * 2005-03-22 2012-07-25 司徒·G·小伯奇尔 高度多孔性的包覆细粒、组合物和制备方法
US8461223B2 (en) 2005-04-07 2013-06-11 Aspen Aerogels, Inc. Microporous polycyclopentadiene-based aerogels
JP5603566B2 (ja) * 2009-05-12 2014-10-08 株式会社豊田中央研究所 球状メソポーラスカーボン及びその製造方法
DE102009053782A1 (de) * 2009-11-19 2011-06-01 BSH Bosch und Siemens Hausgeräte GmbH Poröses SiO2-Xerogel mit charakteristischer Porengröße, dessen trocknungsstabile Vorstufen und dessen Anwendung
CN102115088B (zh) * 2010-01-04 2013-04-17 新疆大学 以醇胺为碱性催化剂制备二氧化硅气凝胶的方法
KR101774783B1 (ko) * 2010-10-25 2017-09-05 가부시끼가이샤 도꾸야마 에어로겔 및 그 제조 방법
WO2012147812A1 (ja) 2011-04-28 2012-11-01 株式会社トクヤマ 金属酸化物粉末及びその製造方法
WO2013007558A2 (en) * 2011-07-08 2013-01-17 Purac Biochem Bv Active formulation for use in feed products
US9302247B2 (en) 2012-04-28 2016-04-05 Aspen Aerogels, Inc. Aerogel sorbents
TW201641544A (zh) * 2015-05-27 2016-12-01 Univ Kun Shan 氣凝膠顆粒及其製備方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081407A (en) * 1976-03-18 1978-03-28 Phillips Petroleum Company Catalyst support prepared by alcohol treatment of hydrogels
GB8501882D0 (en) * 1985-01-25 1985-02-27 Atomic Energy Authority Uk Materials
DE3616133A1 (de) * 1985-09-25 1987-11-19 Merck Patent Gmbh Kugelfoermige sio(pfeil abwaerts)2(pfeil abwaerts)-partikel
US4776867A (en) * 1986-08-15 1988-10-11 Gte Laboratories Incorporated Process for molding optical components of silicate glass to a near net shape optical precision
JPS63307126A (ja) * 1987-06-08 1988-12-14 Hitachi Chem Co Ltd シリカガラスの製造法
SE459731B (sv) * 1987-06-29 1989-07-31 Eka Nobel Ab Silikapartiklar, foerfarande foer deras framstaellning samt anvaendning av partiklarna
DE3834774C2 (de) * 1988-10-12 1995-01-05 Fraunhofer Ges Forschung Verfahren zur Herstellung einer kugelförmige Oxidteilchen enthaltenden Suspension
US5207814A (en) * 1989-02-10 1993-05-04 Enichem S.P.A. Process for preparing monoliths of aerogels of metal oxides

Also Published As

Publication number Publication date
JP3386159B2 (ja) 2003-03-17
EP0537851B1 (en) 1996-03-20
JPH05213614A (ja) 1993-08-24
ITMI912741A0 (it) 1991-10-17
DE69209213D1 (de) 1996-04-25
ATE135667T1 (de) 1996-04-15
DK0537851T3 (da) 1996-05-20
EP0537851A1 (en) 1993-04-21
ES2084264T3 (es) 1996-05-01
DE69209213T2 (de) 1996-08-14
US5270027A (en) 1993-12-14
ITMI912741A1 (it) 1993-04-18

Similar Documents

Publication Publication Date Title
IT1251937B (it) Xerogels di silice ad alta porosita` e processo per la loro preparazione.
ATE233595T1 (de) Hochreines biogenes silicaprodukt
ITMI930104A0 (it) Granuli sferici di silice porosa oppure di silicato poroso, procedimento per la loro produzione e loro impiego
MX173975B (es) Grupo de ejes en tandem gobernado pasivamente
AU7372091A (en) Treatment of sinus headache
FR2747669B1 (fr) Procede de preparation de particules creuses de silice
NO934156L (no) Fremgangsmåte for fremstilling av lette olefiner
NO972869D0 (no) Fremgangsmåte for fremstilling av höyrent melamin
DE68911346D1 (de) Länglich geformte Teilchen enthaltendes Kieselsäuresol sowie Verfahren zur Herstellung desselben.
FR2723954B1 (fr) Procede de production de siloxanes lineaires de faible masse moleculaire.
DE59300345D1 (de) Verfahren zur Hydrophobierung von pyrogen hergestelltem Siliciumdioxid.
DE59712666D1 (de) Füllstoff auf Siliciumdioxid-Basis, Verfahren zu seiner Herstellung und seine Verwendung
BR9610542A (pt) Composições compreendendo partículas de sílica hidrofílica
BR9611264A (pt) Processo de modificação da porosidade de aluminosilicatos e sílicas e composições mesoporosas deles derivados
CA2215834A1 (en) Dna encoding human papillomavirus type 18
ITMI932132A0 (it) Pigementi di ossido di ferro trasparenti, processo per la preparazione nonche' loro impiego
CA2218887A1 (en) Piperazino derivatives as neurokinin antagonists
DE59300350D1 (de) Verfahren zur Hydrophobierung von pyrogen hergestelltem Siliciumdioxid.
AU6183790A (en) Process for reducing the swellability of starches
DE69614721D1 (de) Getrennte phasen aufweisende nichtkristalline opalgläser
EP0515216A3 (en) Method of purifying beta-1,3-glucans
BR9304665A (pt) Método de separar partículas de acordo com as propriedades térmicas das partículas
HU901548D0 (en) Process for the hydrothermal production of kalium-silicate solutions with high sio2:k2o molecular ratio
NO963432D0 (no) Fremgangsmåte for fremstilling av dimetyldiklorsilan
ITMI951556A0 (it) Processo per la preparazione di fluorossi- o clorossi- perfluoroacilfluoruri

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971014