DK0658513T3 - Process for making xerogels - Google Patents
Process for making xerogelsInfo
- 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
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)
- Glass Melting And Manufacturing (AREA)
- Silicon Polymers (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.
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 (33)
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 |
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 |
DE59813467D1 (en) * | 1997-04-18 | 2006-05-18 | Cabot Corp | USE OF AEROGELES AS ADSORPTION AGENTS |
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 of manufacturing aerogels using sodium silicate and aerogel tiles for making same method |
WO2009034046A1 (en) * | 2007-09-10 | 2009-03-19 | Shell Internationale Research Maatschappij B.V. | Process for stabilising a fischer tropsch catalyst |
EP2634144A4 (en) * | 2010-10-25 | 2014-08-20 | Tokuyama Corp | Aerogel and method for producing same |
WO2012147812A1 (en) | 2011-04-28 | 2012-11-01 | 株式会社トクヤマ | Metal oxide powder and method for producing same |
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)
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 |
WO1992003378A1 (en) | 1990-08-23 | 1992-03-05 | United States Department Of Energy | A METHOD FOR PRODUCING METAL OXIDE AEROGELS HAVING DENSITIES LESS THAN 0.02 g/cm?3¿ |
-
1993
- 1993-12-14 DE DE4342548A patent/DE4342548A1/en not_active Withdrawn
-
1994
- 1994-12-07 DK DK94119307T patent/DK0658513T3/en active
- 1994-12-07 EP EP94119307A patent/EP0658513B1/en not_active Expired - Lifetime
- 1994-12-07 DE DE59408391T patent/DE59408391D1/en not_active Expired - Lifetime
- 1994-12-07 AT AT94119307T patent/ATE181040T1/en not_active IP Right Cessation
- 1994-12-07 ES ES94119307T patent/ES2134311T3/en not_active Expired - Lifetime
- 1994-12-13 JP JP30910194A patent/JP3854645B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH07257918A (en) | 1995-10-09 |
DE4342548A1 (en) | 1995-06-22 |
JP3854645B2 (en) | 2006-12-06 |
EP0658513B1 (en) | 1999-06-09 |
ES2134311T3 (en) | 1999-10-01 |
EP0658513A1 (en) | 1995-06-21 |
DE59408391D1 (en) | 1999-07-15 |
ATE181040T1 (en) | 1999-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK0658513T3 (en) | Process for making xerogels | |
MX9803701A (en) | Process for preparing organically modified aerogels in which the salts formed are precipitated out. | |
SE7907276L (en) | TEETH CLEANER | |
NO178969C (en) | Analogous process for the preparation of therapeutically active substituted quinazolinones | |
MX225754B (en) | HYDROGELS THAT ABSORB WATER FLUIDS. | |
PT89024A (en) | PREPARATION PROCESS OF QUINOLONE DERIVATIVES | |
IT1126543B (en) | SILICIC ACID GEL, PROCEDURE FOR THEIR PRODUCTION, AS WELL AS ITS USE | |
ATE393762T1 (en) | GELING AGENT | |
ES2073025T3 (en) | MANUFACTURE OF PEROXIACIDES. | |
NO175937C (en) | Sulfone peroxycarboxylic acids, detergents containing them, and their use for bleaching | |
FI98067B (en) | Novel alkylenediammonium diclavulanate derivatives, process for their preparation as well as their use for the purification of calvulanic acid | |
NO902839L (en) | PROCEDURE FOR CLEANING TRYTOPHAN. | |
ATE162173T1 (en) | METHOD FOR PRODUCING METHYL METHACRYLATE WITHOUT DIACETHYL | |
DE69222012D1 (en) | Process for the preparation of alpha-ketoamide derivatives | |
FI102377B1 (en) | Process for the preparation of therapeutically useful 4-amino-4-steroids | |
DE59102161D1 (en) | Process for the preparation of 3-methylpyrazole. | |
ES2089063T3 (en) | 4-AMINO-DELTA4,6-STEROIDS AND THEIR USE AS INHIBITORS OF 5ALFA-REDUCTASE. | |
DK0782996T3 (en) | Process for the preparation of N-biphenylmethylthiadiazoline derivative or salt thereof and intermediate for the preparation of | |
ATE212330T1 (en) | BATCH LARGE PROCESS FOR PRODUCING DIAZOMETHANE | |
EP0381130A3 (en) | Production of alpha-unsaturated amines | |
DK638787D0 (en) | ANTHRACYCLINE DERIVATIVES, THEIR PREPARATION AND USE | |
ATE10487T1 (en) | PROCESS FOR THE PREPARATION OF ANHYDROUS 2HYDROXY-3-CHLORPROPYLTRIALKYLAMMONIUM CHLORIDE. | |
ATE353896T1 (en) | METHOD FOR PRODUCING ZOLPIDEM | |
ES2074529T3 (en) | POLYAMIDES CONTAINING FUNCTIONALIZED SIDE CHAINS USEFUL AS WATER-Soluble HYPOLIPIDEMIC AGENTS. | |
IT7925025A0 (en) | PROCESS FOR THE PRODUCTION OF DICICLOPENTILEN SQUARE BRACKET 2,2'-BIS(4-ALKYL-6-T-BUTYLPHENOLS) SQUARE BRACKET. |