DE1667007B1 - Verfahren zur Trocknung von feuchten Metalloxid- oder Siliciumdioxid-Gelen - Google Patents
Verfahren zur Trocknung von feuchten Metalloxid- oder Siliciumdioxid-GelenInfo
- Publication number
- DE1667007B1 DE1667007B1 DE19671667007 DE1667007A DE1667007B1 DE 1667007 B1 DE1667007 B1 DE 1667007B1 DE 19671667007 DE19671667007 DE 19671667007 DE 1667007 A DE1667007 A DE 1667007A DE 1667007 B1 DE1667007 B1 DE 1667007B1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- gel
- silicon dioxide
- autoclave
- atmospheres
- 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.)
- Withdrawn
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 29
- 239000000499 gel Substances 0.000 title claims description 27
- 238000000034 method Methods 0.000 title claims description 17
- 239000000377 silicon dioxide Substances 0.000 title claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 title claims description 9
- 150000004706 metal oxides Chemical class 0.000 title claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 title claims description 9
- 238000001035 drying Methods 0.000 title claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229940024546 aluminum hydroxide gel Drugs 0.000 claims description 3
- SMYKVLBUSSNXMV-UHFFFAOYSA-K aluminum;trihydroxide;hydrate Chemical compound O.[OH-].[OH-].[OH-].[Al+3] SMYKVLBUSSNXMV-UHFFFAOYSA-K 0.000 claims description 3
- 239000007863 gel particle Substances 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 239000000126 substance Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XUIMIQQOPSSXEZ-NJFSPNSNSA-N silicon-30 atom Chemical compound [30Si] XUIMIQQOPSSXEZ-NJFSPNSNSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- 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
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0053753 | 1967-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1667007B1 true DE1667007B1 (de) | 1972-05-25 |
Family
ID=7055224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671667007 Withdrawn DE1667007B1 (de) | 1967-08-03 | 1967-08-03 | Verfahren zur Trocknung von feuchten Metalloxid- oder Siliciumdioxid-Gelen |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1667007B1 (enrdf_load_stackoverflow) |
| FR (1) | FR1575283A (enrdf_load_stackoverflow) |
| GB (1) | GB1238053A (enrdf_load_stackoverflow) |
| NL (1) | NL6811019A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4304052A (en) * | 1979-04-05 | 1981-12-08 | Bfg Glassgroup | Drying intumescent material |
| GB2083899B (en) * | 1980-09-11 | 1984-05-31 | Atomic Energy Authority Uk | Removing water from gels |
| EP0048100B1 (en) * | 1980-09-11 | 1984-07-18 | United Kingdom Atomic Energy Authority | Process for removing water from gel materials |
| NL8403667A (nl) * | 1984-12-03 | 1986-07-01 | Philips Nv | Werkwijze voor de vervaardiging van monolitische glaslichamen. |
| US5473826A (en) * | 1994-08-19 | 1995-12-12 | Yazaki Corporation | Process for drying sol-gel derived porous bodies at elevated subcritical temperatures and pressures |
-
1967
- 1967-08-03 DE DE19671667007 patent/DE1667007B1/de not_active Withdrawn
-
1968
- 1968-07-31 FR FR1575283D patent/FR1575283A/fr not_active Expired
- 1968-08-01 GB GB1238053D patent/GB1238053A/en not_active Expired
- 1968-08-02 NL NL6811019A patent/NL6811019A/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1575283A (enrdf_load_stackoverflow) | 1969-07-18 |
| NL6811019A (enrdf_load_stackoverflow) | 1969-02-05 |
| GB1238053A (enrdf_load_stackoverflow) | 1971-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |