BE1001847A3 - Procede de production d'alumines boehmitiques. - Google Patents
Procede de production d'alumines boehmitiques. Download PDFInfo
- Publication number
- BE1001847A3 BE1001847A3 BE8900454A BE8900454A BE1001847A3 BE 1001847 A3 BE1001847 A3 BE 1001847A3 BE 8900454 A BE8900454 A BE 8900454A BE 8900454 A BE8900454 A BE 8900454A BE 1001847 A3 BE1001847 A3 BE 1001847A3
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- radius
- aging
- alumina
- hours
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 49
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000032683 aging Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000007062 hydrolysis Effects 0.000 claims abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 6
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 239000006185 dispersion Substances 0.000 claims description 15
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 229910018404 Al2 O3 Inorganic materials 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- WMWXXXSCZVGQAR-UHFFFAOYSA-N dialuminum;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3] WMWXXXSCZVGQAR-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002459 porosimetry Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/447—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
- C01F7/448—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3823895A DE3823895C1 (enExample) | 1988-07-14 | 1988-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE1001847A3 true BE1001847A3 (fr) | 1990-03-20 |
Family
ID=6358672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE8900454A BE1001847A3 (fr) | 1988-07-14 | 1989-04-24 | Procede de production d'alumines boehmitiques. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5055019A (enExample) |
| JP (1) | JPH0678164B2 (enExample) |
| BE (1) | BE1001847A3 (enExample) |
| DE (1) | DE3823895C1 (enExample) |
| FR (1) | FR2634194B1 (enExample) |
| GB (1) | GB2220651B (enExample) |
| IT (1) | IT1230055B (enExample) |
| NL (1) | NL194792C (enExample) |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178849A (en) * | 1991-03-22 | 1993-01-12 | Norton Company | Process for manufacturing alpha alumina from dispersible boehmite |
| JP3342705B2 (ja) * | 1991-07-31 | 2002-11-11 | 旭硝子株式会社 | 記録シート用塗布液 |
| CA2131796C (en) * | 1992-03-12 | 2004-01-27 | Lewis Bernard Decker Jr. | Preparation of alumina having increased porosity |
| US5593654A (en) * | 1992-03-12 | 1997-01-14 | Condea Vista Company | Preparation of stabilized alumina having enhanced resistance to loss of surface area at high temperatures |
| CA2131795C (en) * | 1992-03-12 | 2004-02-03 | Lewis Bernard Decker Jr. | Preparation of stabilized alumina having enhanced resistance to loss of surface area at high temperatures |
| US5367308A (en) * | 1992-05-29 | 1994-11-22 | Iowa State University Research Foundation, Inc. | Thin film resonating device |
| RU2114785C1 (ru) * | 1997-05-15 | 1998-07-10 | Общество с ограниченной ответственностью "ИВТЕХИМ" | Способ получения гидроксида алюминия |
| DE19836821A1 (de) * | 1998-08-14 | 2000-02-24 | Rwe Dea Ag | Böhmitische Tonerden und aus diesen erhältliche phasenreine, hochtemperaturstabile und hochporöse Aluminiumoxide |
| DE19930924A1 (de) | 1999-07-06 | 2001-01-18 | Rwe Dea Ag | Verfahren zur Herstellung von Tonerdehydraten durch Fällung von Aluminiumsalzen in Gegenwart von Kristallisationskeimen |
| US7606731B2 (en) * | 1999-08-17 | 2009-10-20 | Mcclung Iii Guy Lamonte | Price guarantee methods and systems |
| EP1329420B1 (en) | 1999-12-27 | 2013-02-27 | Sumitomo Chemical Company, Limited | Aluminium hydroxide and tyre tread rubber composition and pneumatic tyre employing the aluminium hydroxide |
| GB2360477A (en) * | 2000-03-22 | 2001-09-26 | Gea Sprio Gills Ltd | Brazing aluminium components |
| US6461411B1 (en) * | 2000-12-04 | 2002-10-08 | Matheson Tri-Gas | Method and materials for purifying hydride gases, inert gases, and non-reactive gases |
| FR2823193B1 (fr) * | 2001-04-04 | 2004-02-13 | Pro Catalyse | Agglomeres d'alumine, leur procede de preparation, et leurs utilisations comme support de catalyseur, catalyseur ou absorbant |
| FR2823194B1 (fr) * | 2001-04-10 | 2004-02-13 | Pro Catalyse | Agglomeres d'alumine utilisables, notamment, comme supports de catalyseur, catalyseurs ou adsorbants, et leurs procedes de preparation |
| BR0209531A (pt) * | 2001-05-10 | 2004-03-09 | Akzo Nobel Nv | Processo contìnuo e aparelho para a conversão eficaz de partìculas sólidas inorg nicas |
| US20050250642A1 (en) * | 2001-05-10 | 2005-11-10 | Dennis Stamires | Continuous process and apparatus for the efficient conversion of inorganic solid particles |
| US20030168627A1 (en) * | 2002-02-22 | 2003-09-11 | Singh Rajiv K. | Slurry and method for chemical mechanical polishing of metal structures including refractory metal based barrier layers |
| AU2003301268A1 (en) * | 2002-10-16 | 2004-05-04 | Conocophillips Company | A stabilized transition alumina catalyst support from boehmite and catalysts made therefrom |
| US7341976B2 (en) * | 2002-10-16 | 2008-03-11 | Conocophillips Company | Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using |
| WO2004035511A2 (en) * | 2002-10-16 | 2004-04-29 | Conocophillips Company | Fischer-tropsch processes and catalysts using stabilized supports |
| EP1558554A2 (en) * | 2002-10-16 | 2005-08-03 | Conocophillips Company | Fischer-tropsch processes and catalysts made from a material comprising boehmite |
| CA2500549A1 (en) * | 2002-10-16 | 2004-04-29 | Conocophillips Company | High hydrothermal stability catalyst support |
| ATE292021T1 (de) * | 2003-01-10 | 2005-04-15 | Ilford Imaging Ch Gmbh | Aufzeichnungsmaterial für den tintenstrahldruck |
| EP1492389A1 (de) * | 2003-06-26 | 2004-12-29 | ILFORD Imaging Switzerland GmbH | Optische Verstärkermaterialien |
| US7163963B2 (en) * | 2003-09-08 | 2007-01-16 | Conocophillips Company | Chemically and thermally stabilized alumina for Fischer-Tropsch catalysts |
| ATE309916T1 (de) | 2003-09-08 | 2005-12-15 | Ilford Imaging Ch Gmbh | Aufzeichnungsmaterial für den tintenstrahldruck |
| US7927675B2 (en) | 2003-09-08 | 2011-04-19 | Ilford Imaging Switzerland Gmbh | Recording sheets for ink jet printing |
| US7186757B2 (en) * | 2003-10-16 | 2007-03-06 | Conocophillips Company | Silica-alumina catalyst support with bimodal pore distribution, catalysts, methods of making and using same |
| WO2005046855A2 (en) * | 2003-10-16 | 2005-05-26 | Conocophillips Company | Silica-alumina catalyst support, catalysts made therefrom and methods of making and using same |
| DE102004009805A1 (de) * | 2004-02-28 | 2005-09-15 | Basf Ag | Trägerkatalysator definierter Porenverteilung im Bereich der Mesoporen |
| KR100579207B1 (ko) * | 2005-03-23 | 2006-05-12 | 한국화학연구원 | 고 표면적을 갖는 보헤마이트 및 감마-알루미나의 제조방법 |
| BRPI0520135A2 (pt) * | 2005-05-12 | 2009-08-18 | Solvay | catalisador de oxicloração, processo de oxicloração de um hidrocarboneto, alumina, e, uso em um processo de oxicloração |
| TWI432381B (zh) * | 2005-12-12 | 2014-04-01 | Grace W R & Co | 氧化鋁粒子 |
| WO2009110945A2 (en) * | 2007-12-28 | 2009-09-11 | 3M Innovative Properties Company | Acicular boehmite nanoparticles |
| EP2164302A1 (de) | 2008-09-12 | 2010-03-17 | Ilford Imaging Switzerland Gmbh | Optisches Element und Verfahren zu seiner Herstellung |
| CN102030351B (zh) * | 2009-09-24 | 2012-08-15 | 中国石油化工股份有限公司 | 一种双峰孔分布的大孔氧化铝及其制备方法 |
| EP2604337A1 (en) | 2011-12-16 | 2013-06-19 | Treibacher Industrie AG | Ceria zirconia alumina composition with enhanced thermal stability |
| JP6138777B2 (ja) | 2011-07-14 | 2017-05-31 | トライバッハー インドゥストリ アクチエンゲゼルシャフト | 向上した熱安定性を有している、セリアジルコニアアルミナ組成物 |
| DE102011107702A1 (de) | 2011-07-14 | 2013-01-17 | Sasol Germany Gmbh | Verfahren zur Herstellung von Kompositen aus Aluminiumoxid und Cer-/Zirkonium-Mischoxiden |
| CN103041870B (zh) * | 2011-10-17 | 2014-11-19 | 中国石油化工股份有限公司 | 一种氧化铝载体及其制备方法和应用 |
| KR101944038B1 (ko) * | 2012-03-06 | 2019-01-31 | 스미또모 가가꾸 가부시끼가이샤 | 수산화알루미늄 분말 및 그 제조 방법 |
| KR102221556B1 (ko) | 2012-03-16 | 2021-03-02 | 엠. 테크닉 가부시키가이샤 | 고체 금 니켈 합금 나노 입자 및 그 제조 방법 |
| JP2014023997A (ja) * | 2012-07-26 | 2014-02-06 | M Technique Co Ltd | 微粒子の製造方法 |
| JP6229351B2 (ja) * | 2013-07-26 | 2017-11-15 | 株式会社デンソー | アルミニウム製品の製造方法および製造装置 |
| CN106348327B (zh) * | 2016-08-29 | 2020-07-24 | 宁波盈诺新材料科技有限公司 | 超大孔拟薄水铝石及其制备方法 |
| FR3084363B1 (fr) | 2018-07-25 | 2020-08-07 | Ifp Energies Now | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et un element alcalin |
| FR3084362A1 (fr) | 2018-07-25 | 2020-01-31 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et un element alcalin |
| FR3084361A1 (fr) | 2018-07-25 | 2020-01-31 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et du soufre |
| FR3088338B1 (fr) | 2018-11-08 | 2021-10-29 | Ifp Energies Now | Procede de reformage en lit fixe utilisant un catalyseur de forme particuliere |
| FR3103192A1 (fr) | 2019-11-15 | 2021-05-21 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur a haute teneur en alcalin contenant du silicium, du molybdene |
| US11691888B2 (en) | 2020-05-27 | 2023-07-04 | Scandium International Mining Corporation | Process for the preparation of high purity alumina |
| JP2025518759A (ja) * | 2022-05-30 | 2025-06-19 | 中国石油化工股▲ふん▼有限公司 | 擬ベーマイトおよびその調製方法、ならびに前記擬ベーマイトを含む接触分解触媒、ならびにその調製および適用 |
| FR3156335A1 (fr) | 2023-12-06 | 2025-06-13 | Axens | Catalyseur de reformage catalytique ayant une acidite optimisee |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836594A (en) * | 1969-11-27 | 1974-09-17 | R Sampson | Hydrocarbon conversion process and silica and/or alumina-containing catalyst therefor |
| US4175118A (en) * | 1975-12-17 | 1979-11-20 | Condea Chemie Gmbh | Method for manufacturing a high porous alumina having a large surface area and a low bulk density |
| EP0025817A1 (en) * | 1979-09-04 | 1981-04-01 | Conoco Inc. (formerly called : DU PONT HOLDINGS , INC.) | A method for forming stable dispersions of alumina in water and the so-obtained dispersions |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1258854B (de) * | 1963-05-11 | 1968-01-18 | Deutsche Erdoel Ag | Verfahren zur kontinuierlichen Herstellung von Alkoholen durch Hydrolyse von Aluminiumalkoxiden in einem homogenen System aus n-Butanol und Wasser |
| US3357791A (en) * | 1964-07-20 | 1967-12-12 | Continental Oil Co | Process for producing colloidal-size particles of alumina monohydrate |
| FR1483002A (fr) * | 1966-04-21 | 1967-06-02 | Pechiney Saint Gobain | Monohydrates d'aluminium de petite surface spécifique et leurs applications |
| US3714343A (en) * | 1967-06-26 | 1973-01-30 | Mitsubishi Chem Ind | Alumina hydrate,theta-alumina and a method for the manufacture thereof |
| SE332379B (enExample) * | 1970-04-01 | 1971-02-01 | Cold Bound Peliets Ab | |
| US3975231A (en) * | 1972-04-14 | 1976-08-17 | Continental Oil Company | Method for producing concentrated alumina slurries |
| DE2314350C3 (de) * | 1972-04-14 | 1978-05-03 | Continental Oil Co., Ponca City, Okla. (V.St.A.) | Verfahren zur Herstellung von freifließenden Aluminiumoxyd-Aufschlämmungen |
| US3898322A (en) * | 1972-12-15 | 1975-08-05 | Continental Oil Co | Alumina having a binodal pore volume distribution |
| US3966893A (en) * | 1974-12-02 | 1976-06-29 | Philadelphia Quartz Company | Precipitating α alumina monohydrate |
| US4224302A (en) * | 1975-09-16 | 1980-09-23 | Nippon Soken Inc. | Process for producing an alumina catalyst carrier |
| CA1069486A (en) * | 1975-11-10 | 1980-01-08 | Nalco Chemical Company | Method of preparing a controlled pore volume alumina with citric acid |
| DE2556804C3 (de) * | 1975-12-17 | 1981-02-26 | Condea Chemie Gmbh, 2212 Brunsbuettel | Verfahren, zur Herstellung von Tonerdeprodukten mit großer Oberfläche |
| US4098874A (en) * | 1977-04-18 | 1978-07-04 | Uop Inc. | Method of preparation of alumina catalyst support or carrier material |
| JPS5527830A (en) * | 1978-08-15 | 1980-02-28 | Chiyoda Chem Eng & Constr Co Ltd | Production of alumina carrier |
| JP5744605B2 (ja) | 2011-04-07 | 2015-07-08 | キヤノン株式会社 | 情報処理装置、情報処理方法 |
-
1988
- 1988-07-14 DE DE3823895A patent/DE3823895C1/de not_active Expired
-
1989
- 1989-04-13 IT IT8920124A patent/IT1230055B/it active
- 1989-04-13 NL NL8900924A patent/NL194792C/nl not_active IP Right Cessation
- 1989-04-24 BE BE8900454A patent/BE1001847A3/fr not_active IP Right Cessation
- 1989-05-16 GB GB8911178A patent/GB2220651B/en not_active Expired - Lifetime
- 1989-05-22 FR FR8906632A patent/FR2634194B1/fr not_active Expired - Lifetime
- 1989-06-02 US US07/360,311 patent/US5055019A/en not_active Expired - Lifetime
- 1989-07-14 JP JP1180639A patent/JPH0678164B2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836594A (en) * | 1969-11-27 | 1974-09-17 | R Sampson | Hydrocarbon conversion process and silica and/or alumina-containing catalyst therefor |
| US4175118A (en) * | 1975-12-17 | 1979-11-20 | Condea Chemie Gmbh | Method for manufacturing a high porous alumina having a large surface area and a low bulk density |
| EP0025817A1 (en) * | 1979-09-04 | 1981-04-01 | Conoco Inc. (formerly called : DU PONT HOLDINGS , INC.) | A method for forming stable dispersions of alumina in water and the so-obtained dispersions |
Also Published As
| Publication number | Publication date |
|---|---|
| NL194792C (nl) | 2003-03-04 |
| FR2634194B1 (fr) | 1993-03-19 |
| IT1230055B (it) | 1991-09-27 |
| GB2220651A (en) | 1990-01-17 |
| US5055019A (en) | 1991-10-08 |
| NL8900924A (nl) | 1990-02-01 |
| NL194792B (nl) | 2002-11-01 |
| IT8920124A0 (it) | 1989-04-13 |
| FR2634194A1 (fr) | 1990-01-19 |
| JPH0678164B2 (ja) | 1994-10-05 |
| GB2220651B (en) | 1992-01-22 |
| JPH0264010A (ja) | 1990-03-05 |
| DE3823895C1 (enExample) | 1989-12-21 |
| GB8911178D0 (en) | 1989-07-05 |
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| Date | Code | Title | Description |
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| RE20 | Patent expired |
Owner name: *SASOL GERMANY G.M.B.H. Effective date: 20090424 |