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BR9406431A - Preparaç o de xerogeles de alta porosidade por modificaç o quimica da superficie - Google Patents

Preparaç o de xerogeles de alta porosidade por modificaç o quimica da superficie

Info

Publication number
BR9406431A
BR9406431A BR9406431A BR9406431A BR9406431A BR 9406431 A BR9406431 A BR 9406431A BR 9406431 A BR9406431 A BR 9406431A BR 9406431 A BR9406431 A BR 9406431A BR 9406431 A BR9406431 A BR 9406431A
Authority
BR
Brazil
Prior art keywords
pressures
preparation
vacuum
chemical modification
high porosity
Prior art date
Application number
BR9406431A
Other languages
English (en)
Inventor
Ravindra Deshpande
Jeffrey C Brinker
Douglas M Smith
Original Assignee
Univ New Mexico
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 Univ New Mexico filed Critical Univ New Mexico
Publication of BR9406431A publication Critical patent/BR9406431A/pt

Links

Classifications

    • 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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0091—Preparation of aerogels, e.g. xerogels
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2995—Silane, siloxane or silicone coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silicon Compounds (AREA)
  • Colloid Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
BR9406431A 1993-04-28 1994-04-28 Preparaç o de xerogeles de alta porosidade por modificaç o quimica da superficie BR9406431A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/055,069 US5565142A (en) 1992-04-01 1993-04-28 Preparation of high porosity xerogels by chemical surface modification.
PCT/US1994/005105 WO1994025149A1 (en) 1993-04-28 1994-04-28 Preparation of high porosity xerogels by chemical surface modification

Publications (1)

Publication Number Publication Date
BR9406431A true BR9406431A (pt) 1996-01-09

Family

ID=21995376

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9406431A BR9406431A (pt) 1993-04-28 1994-04-28 Preparaç o de xerogeles de alta porosidade por modificaç o quimica da superficie

Country Status (10)

Country Link
US (1) US5565142A (pt)
EP (1) EP0707518B1 (pt)
JP (1) JP2840881B2 (pt)
KR (1) KR0158053B1 (pt)
AT (1) ATE193980T1 (pt)
BR (1) BR9406431A (pt)
CA (1) CA2160993A1 (pt)
DE (1) DE69424995T2 (pt)
NO (1) NO954274L (pt)
WO (1) WO1994025149A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT106781A (pt) * 2013-02-15 2014-08-18 Inst Superior Tecnico Aerogéis híbridos flexíveis preparados em condições subcríticas e processo de preparação dos mesmos

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EP0707518B1 (en) 2000-06-21
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US5565142A (en) 1996-10-15
ATE193980T1 (de) 2000-07-15
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EP0707518A1 (en) 1996-04-24
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