DE2610852B2 - Verfahren zur Herstellung von kugelförmigem Kieselsäuregel - Google Patents
Verfahren zur Herstellung von kugelförmigem KieselsäuregelInfo
- Publication number
- DE2610852B2 DE2610852B2 DE2610852A DE2610852A DE2610852B2 DE 2610852 B2 DE2610852 B2 DE 2610852B2 DE 2610852 A DE2610852 A DE 2610852A DE 2610852 A DE2610852 A DE 2610852A DE 2610852 B2 DE2610852 B2 DE 2610852B2
- Authority
- DE
- Germany
- Prior art keywords
- spherical
- silica gel
- dispersion medium
- water glass
- polar
- 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.)
- Ceased
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 67
- 239000000741 silica gel Substances 0.000 title claims description 46
- 229910002027 silica gel Inorganic materials 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000002612 dispersion medium Substances 0.000 claims description 27
- 235000019353 potassium silicate Nutrition 0.000 claims description 21
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 239000004088 foaming agent Substances 0.000 claims description 14
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 14
- 239000012454 non-polar solvent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 10
- 239000002798 polar solvent Substances 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 239000000499 gel Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 229940057995 liquid paraffin Drugs 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims 3
- 239000007858 starting material Substances 0.000 claims 3
- 239000007864 aqueous solution Substances 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 238000006555 catalytic reaction Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 239000002609 medium Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 description 24
- 235000019441 ethanol Nutrition 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 238000011282 treatment Methods 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- 239000003349 gelling agent Substances 0.000 description 4
- 239000011877 solvent mixture Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000001476 alcoholic effect Effects 0.000 description 3
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1 -dodecene Natural products CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- -1 liquid paraffin Chemical compound 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000003791 organic solvent mixture Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
- B01J2/08—Gelation of a colloidal solution
-
- 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
- C01B33/1546—Preparation of hydrogels by acidic treatment of aqueous silicate solutions the first formed hydrosol being converted to a hydrogel by introduction into an organic medium immiscible or only partly miscible with water
-
- 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
- C01B33/166—Preparation of silica xerogels by acidification of silicate in the presence of an inert organic phase
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Compounds (AREA)
- Glass Melting And Manufacturing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50039829A JPS51115298A (en) | 1975-04-03 | 1975-04-03 | Process for production of spherical silica gel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2610852A1 DE2610852A1 (de) | 1976-10-21 |
| DE2610852B2 true DE2610852B2 (de) | 1980-01-10 |
Family
ID=12563848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2610852A Ceased DE2610852B2 (de) | 1975-04-03 | 1976-03-15 | Verfahren zur Herstellung von kugelförmigem Kieselsäuregel |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4089932A (enExample) |
| JP (1) | JPS51115298A (enExample) |
| DE (1) | DE2610852B2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2531417A1 (fr) * | 1982-08-04 | 1984-02-10 | Toyo Soda Mfg Co Ltd | Gel de silice micro-poreux en spheres, et sa fabrication |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306913A (en) * | 1978-09-11 | 1981-12-22 | American Dental Association Health Foundation | Method for preparing microporous glassy filler grains for dental resin composites |
| CS208879B1 (en) * | 1979-07-09 | 1981-10-30 | Ivan Novak | Preparation method of silicic acid xerogel with high volumen of pores |
| JPS6087281U (ja) * | 1983-11-18 | 1985-06-15 | 冨士建設工業有限会社 | コンクリ−ト製溝蓋 |
| DK251984D0 (da) * | 1984-05-22 | 1984-05-22 | Niro Atomizer As | Fremgangsmaade til fremstilling af polymerpartikler |
| CA1271307A (en) * | 1985-06-27 | 1990-07-10 | Iwao Ohshima | Process for manufacturing high purity silica |
| GB2199541A (en) * | 1986-10-16 | 1988-07-13 | Rig Design Services | Production of engineering drawings |
| US5145578A (en) * | 1987-07-03 | 1992-09-08 | Shiseido Company Ltd. | Packing material for liquid chromatography |
| JP2533563B2 (ja) * | 1987-09-10 | 1996-09-11 | 三菱化学株式会社 | ゲル状シリカ粒子の製造方法 |
| BE1004675A3 (fr) * | 1991-03-11 | 1993-01-12 | Solvay | Procede d'obtention de particules microspheroidales homodisperses, particules microspheroidales de silice a surface specifique elevee, catalyseurs supportes sur ces particules et procede de polymerisation des alpha-olefines en presence de ces catalyseurs. |
| US6648958B2 (en) | 1998-09-14 | 2003-11-18 | Merck Patent Gesellschaft | Highly light-scattering pigment mixture |
| US9107452B2 (en) * | 2003-06-13 | 2015-08-18 | Philip Morris Usa Inc. | Catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette |
| KR100651243B1 (ko) | 2005-03-04 | 2006-11-30 | (주) 에스오씨 | 구형 실리카의 제조 방법 |
| JP4750211B1 (ja) * | 2010-05-11 | 2011-08-17 | 株式会社 資生堂 | 表面改質方法及び表面改質材料 |
| JP6055362B2 (ja) * | 2013-04-17 | 2016-12-27 | 株式会社トクヤマ | 多孔質球状金属酸化物の製造方法 |
| DE102015211812A1 (de) * | 2015-06-25 | 2016-12-29 | Wacker Chemie Ag | Wirtschaftliches Verfahren zur Herstellung von organisch modifizierten Lyo- oder Aerogelen |
| EP3356305B1 (en) | 2015-09-28 | 2020-11-04 | Dalhousie University | Polyphosphate glass microspheres, methods of making and uses thereof |
| CN110088040B (zh) * | 2016-12-31 | 2022-10-14 | 钛业有限公司 | 一种制备微米级球形二氧化硅气凝胶的方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA559450A (en) * | 1958-06-24 | Hoekstra James | Method of manufacturing silica gel particles | |
| US2568352A (en) * | 1944-05-01 | 1951-09-18 | Houdry Process Corp | Preparation of catalyst gel beads by emulsifying |
| US2570063A (en) * | 1949-04-12 | 1951-10-02 | Standard Oil Dev Co | Treatment of microspherical particles to render them nonagglomerating |
| US2672453A (en) * | 1952-11-17 | 1954-03-16 | Universal Oil Prod Co | Manufacture of spherical particles |
| US2978298A (en) * | 1956-09-04 | 1961-04-04 | Gen Electric | Process for producing hydrophobic aerogels |
| US3258311A (en) * | 1963-03-25 | 1966-06-28 | Owens Illinois Glass Co | Process for forming spherical silica beads |
| US3290122A (en) * | 1964-07-28 | 1966-12-06 | Sam D Clinton | Process for preparing oxide gel microspheres from sols |
| NL6508991A (enExample) * | 1965-07-13 | 1967-01-16 | ||
| US3321276A (en) * | 1965-10-23 | 1967-05-23 | Owens Illinois Inc | Preparation of silica gel |
| US4006175A (en) * | 1969-12-18 | 1977-02-01 | Dynamit Nobel Aktiengesellschaft | Porous silicic acid and its production |
| DE2155045B2 (de) * | 1971-11-05 | 1976-05-06 | Sebestian, Imrich, Dr., 6000 Frankfurt; Halasz, Istvan, Prof. Dr., 6600 Saarbrücken | Verfahren zur herstellung von kugelfoermigen poroesen sio tief 2-teilchen |
| US4011096A (en) * | 1975-06-10 | 1977-03-08 | E. I. Du Pont De Nemours And Company | Vesiculated silica microspheres |
-
1975
- 1975-04-03 JP JP50039829A patent/JPS51115298A/ja active Granted
-
1976
- 1976-03-15 DE DE2610852A patent/DE2610852B2/de not_active Ceased
- 1976-03-19 US US05/668,615 patent/US4089932A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2531417A1 (fr) * | 1982-08-04 | 1984-02-10 | Toyo Soda Mfg Co Ltd | Gel de silice micro-poreux en spheres, et sa fabrication |
Also Published As
| Publication number | Publication date |
|---|---|
| US4089932A (en) | 1978-05-16 |
| DE2610852A1 (de) | 1976-10-21 |
| JPS51115298A (en) | 1976-10-09 |
| JPS5243639B2 (enExample) | 1977-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69117649T2 (de) | Verfahren zur Herstellung von feinkugeligen, gleichförmig grossen anorganischen Teilchen | |
| DE2610852A1 (de) | Verfahren zur herstellung von kugelfoermigem silikagel | |
| DE3328267C2 (enExample) | ||
| DE69412426T2 (de) | Verfahren zur Herstellung von porösen kugelförmigen Kieselsäurexerogelen | |
| DE69531785T2 (de) | Konzentrierte fällungskieselsäuresuspension, verfahren zu ihrer herstellung und verwendung dieser suspension | |
| DE69211158T2 (de) | Sol-gelverfahren zur erzeugung einer geregelten gel-mikrostruktur | |
| DE69124282T2 (de) | Anorganische Oxydaerogel-Perlen mit einer schmalen Porendurchmesser-Verteilung | |
| DE4006393A1 (de) | Waessrige colloidale dispersion von aus der gasphase hergestelltem siliciumdioxyd ohne stabilisator | |
| DE69904432T2 (de) | Verfahren zur herstellung von kugelförmigen kieselsäureteilchen | |
| DE2155045B2 (de) | Verfahren zur herstellung von kugelfoermigen poroesen sio tief 2-teilchen | |
| EP4149885B1 (de) | Verfahren zur herstellung von aerogelen und mit diesem erhältliche aerogele | |
| DE69800878T2 (de) | Feuchte Kieselsäuregele zur Wärmeisolierung mit Aerogel und Xerogel und Verfahren zu deren Herstellung | |
| DE2361424B2 (de) | Verfahren zur Herstellung praktisch kugelförmiger, weichgemachter, freiflieBender Polyvinylchloridteilchen | |
| DE1592865C3 (de) | Verfahren zur Herstellung von organisch modifizierten Kieselsauren | |
| JPS598614A (ja) | 有機溶剤を分散媒とするシリカゾルの製造方法 | |
| DE2145090C2 (de) | Verfahren zur Herstellung von Kieselsäuregel und dessen Verwendung | |
| DE856494C (de) | Verfahren zur Herstellung von Siliciumoxyd-Aluminiumoxyd-Katalysatoren fuer Kohlenwasserstoffumwandlungen, insbesondere zum Spalten | |
| DE69413715T2 (de) | Verfahren zur verminderung des gehalts an organischen lösungsmitteln in cellulose-reaktiven wasserabweisenden mitteln | |
| DE1567585C3 (de) | Verfahren zur Herstellung von Lithiumsilikatlösungen | |
| DE69519656T2 (de) | Verfahren zur Gewinnung von procyanidolischen Oligomeren | |
| DE2247413A1 (de) | Verfahren zur herstellung einer als verdickungsmittel geeigneten kieselsaeure | |
| DE1294346C2 (de) | Herstellung kleiner kapseln | |
| DE724509C (de) | Verfahren zur UEberfuehrung von kolloidale schaumbildende Stoffe enthaltenden, aber schlecht schaeumenden Fluessigkeiten in solche mit guter Schaumkraft | |
| AT220746B (de) | Verfahren zur Herstellung eines selbstemulgierenden Nitrocelluloseproduktes | |
| WO2000020335A1 (de) | Verfahren zur herstellung komplexer fluoroaluminate, die hergestellten fluoroaluminate und verwendung von sprühtrocknung und polyalkylenglykolen zur steuerung der struktur von fluoroaluminaten |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8235 | Patent refused |