FR2398022A1 - Procede pour la preparation de bioxyde de silicium pur et poreux - Google Patents
Procede pour la preparation de bioxyde de silicium pur et poreuxInfo
- Publication number
- FR2398022A1 FR2398022A1 FR7820655A FR7820655A FR2398022A1 FR 2398022 A1 FR2398022 A1 FR 2398022A1 FR 7820655 A FR7820655 A FR 7820655A FR 7820655 A FR7820655 A FR 7820655A FR 2398022 A1 FR2398022 A1 FR 2398022A1
- Authority
- FR
- France
- Prior art keywords
- preparation
- support
- pure
- silicon dioxide
- porous silicon
- 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.)
- Granted
Links
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
- C01B33/16—Preparation of silica xerogels
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/906—Comminution of transition metal containing catalyst
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/908—Containing catalyst of specified particle size
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Silicon Compounds (AREA)
- Polymerization Catalysts (AREA)
Abstract
L'invention concerne un procédé de préparation de bioxyde de silicium pur et poreux, en agitant avec de l'eau et en séchant un gel, obtenu par hydrolyse à la flamme. Le bioxyde de silicium est utilisable comme support de catalyseurs. Le bioxyde de silicium est apte à la préparation des catalyseurs du type oxyde chromique sur support. Si on ajoute un agent de réticulation lors de la préparation du gel, on obtient des grains mécaniquement plus résistants. Les catalyseurs du type oxyde chromique sur support pour la polymérisation d'oléfines sont préparés en mettant un composé de chrome, par exemple sous forme de solution sur le support, après quoi le support imprégné est activé par chauffage dans une atmosphère non réductrice.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7707960A NL7707960A (nl) | 1977-07-18 | 1977-07-18 | Werkwijze ter bereiding van poreus, zuiver siliciumdioxyde. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2398022A1 true FR2398022A1 (fr) | 1979-02-16 |
FR2398022B1 FR2398022B1 (fr) | 1985-01-18 |
Family
ID=19828896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7820655A Granted FR2398022A1 (fr) | 1977-07-18 | 1978-07-11 | Procede pour la preparation de bioxyde de silicium pur et poreux |
Country Status (12)
Country | Link |
---|---|
US (2) | US4224189A (fr) |
JP (1) | JPS5420995A (fr) |
AT (1) | AT373854B (fr) |
BE (1) | BE868791A (fr) |
CA (1) | CA1126245A (fr) |
DE (1) | DE2831508A1 (fr) |
ES (1) | ES471788A1 (fr) |
FR (1) | FR2398022A1 (fr) |
GB (1) | GB2001043B (fr) |
IT (1) | IT1105614B (fr) |
NL (2) | NL7707960A (fr) |
SE (1) | SE7807950L (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5923403A (ja) * | 1982-07-30 | 1984-02-06 | 信越化学工業株式会社 | 合成シリカおよびこれを含有してなる電子部品封止用樹脂組成物 |
US4648975A (en) * | 1983-08-17 | 1987-03-10 | Pedro B. Macedo | Process of using improved silica-based chromatographic supports containing additives |
DE3525495C1 (de) * | 1985-07-17 | 1987-01-02 | Heraeus Schott Quarzschmelze | Verfahren zur Herstellung von Gegenstaenden aus synthetischem Siliziumdioxid |
US4810415A (en) * | 1985-09-24 | 1989-03-07 | Dresser Industries, Inc. | Process for manufacturing ultra pure silica and resulting encapsulated products |
US4661056A (en) * | 1986-03-14 | 1987-04-28 | American Hoechst Corporation | Turbulent incineration of combustible materials supplied in low pressure laminar flow |
JPH0683781B2 (ja) * | 1986-03-14 | 1994-10-26 | 住友化学工業株式会社 | 薄片状物質の製造方法 |
FI83330C (fi) * | 1988-06-03 | 1991-06-25 | Neste Oy | Foerfarande foer aktivering av en polymerisationskatalysatorbaerare och en medelst foerfarandet erhaollen katalysatorkomponent. |
NL8901893A (nl) * | 1989-07-21 | 1991-02-18 | Veg Gasinstituut Nv | Katalysator voor de selectieve oxidatie van zwavelverbindingen tot elementaire zwavel, werkwijze voor de bereiding van een dergelijke katalysator en werkwijze voor de selectieve oxidatie van zwavelverbindingen tot elementaire zwavel. |
US5264506A (en) * | 1992-12-30 | 1993-11-23 | Union Carbide Chemicals & Plastics Technology Corporation | Process for producing sticky polymers |
ES2154748T3 (es) * | 1995-02-04 | 2001-04-16 | Degussa | Granulados a base de dioxido de silicio preparado por via pirogena, procedimiento para su preparacion y su empleo. |
US5641842A (en) * | 1995-06-07 | 1997-06-24 | Phillips Petroleum Company | Ethylene copolymerization process |
ES2114335T3 (es) * | 1995-08-09 | 1998-05-16 | Basf Ag | Sistemas catalizadores del tipo de los catalizadores de ziegler-natta. |
CN1095394C (zh) * | 1996-04-10 | 2002-12-04 | 中国科学院大连化学物理研究所 | 一种由甲基叔丁基醚裂解制异丁烯反应用改性硅胶催化剂 |
DE19623226A1 (de) * | 1996-06-11 | 1997-12-18 | Basf Ag | Katalysatorsysteme vom Typ der Ziegler-Natta-Katalysatoren |
JP3665043B2 (ja) | 2001-08-27 | 2005-06-29 | 日本パーオキサイド株式会社 | ポリ−α−ヒドロキシアクリル酸塩水溶液の製造方法 |
RU2006102493A (ru) * | 2003-06-30 | 2006-06-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) | Получение катализатора |
KR20090017555A (ko) * | 2006-05-02 | 2009-02-18 | 셀 인터나쵸나아레 레사아치 마아츠샤피 비이부이 | 티타늄 촉매, 이의 제조 및 이의 에폭시화 반응에의 이용 |
CN103313786B (zh) * | 2010-11-30 | 2015-07-01 | 巴塞尔聚烯烃股份有限公司 | 活化含铬的聚合催化剂前体的方法以及所得到的聚合催化剂 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2186431A1 (fr) * | 1972-05-15 | 1974-01-11 | Mo Gosud Rstvenny | |
GB1371440A (en) * | 1972-05-31 | 1974-10-23 | Mo G Uni Im Mv Lomonosova | Process for preparing a wide-pore adsorbent for use in chromato graphy |
FR2323706A1 (fr) * | 1975-09-10 | 1977-04-08 | Basf Ag | Procede de preparation de polymeres d'olefines |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL253852A (fr) * | 1959-09-22 | |||
US3095384A (en) * | 1960-09-09 | 1963-06-25 | Socony Mobil Oil Co Inc | Hydrogel treatment |
US3239498A (en) * | 1961-07-20 | 1966-03-08 | Phillips Petroleum Co | Silica-containing catalysts |
US4067954A (en) * | 1971-05-11 | 1978-01-10 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Process for the production of finely divided silicon dioxide having a large specific surface |
BE790704A (fr) * | 1971-10-28 | 1973-02-15 | Degussa | Procede pour la fabrication d'oxydes finement |
BE792365A (fr) * | 1971-12-06 | 1973-03-30 | Gulf Research Development Co | Catalyseurs de polymerisation de 1-olefines |
-
1977
- 1977-07-18 NL NL7707960A patent/NL7707960A/xx not_active Application Discontinuation
-
1978
- 1978-07-04 NL NL7807221A patent/NL7807221A/xx not_active Application Discontinuation
- 1978-07-06 BE BE189116A patent/BE868791A/xx not_active IP Right Cessation
- 1978-07-10 GB GB7829366A patent/GB2001043B/en not_active Expired
- 1978-07-11 AT AT0501278A patent/AT373854B/de not_active IP Right Cessation
- 1978-07-11 FR FR7820655A patent/FR2398022A1/fr active Granted
- 1978-07-12 IT IT50270/78A patent/IT1105614B/it active
- 1978-07-13 CA CA307,335A patent/CA1126245A/fr not_active Expired
- 1978-07-14 US US05/924,747 patent/US4224189A/en not_active Expired - Lifetime
- 1978-07-15 JP JP8667578A patent/JPS5420995A/ja active Pending
- 1978-07-17 ES ES471788A patent/ES471788A1/es not_active Expired
- 1978-07-18 DE DE19782831508 patent/DE2831508A1/de not_active Withdrawn
- 1978-07-18 SE SE7807950A patent/SE7807950L/xx not_active Application Discontinuation
-
1979
- 1979-04-23 US US06/032,638 patent/US4228261A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2186431A1 (fr) * | 1972-05-15 | 1974-01-11 | Mo Gosud Rstvenny | |
GB1371440A (en) * | 1972-05-31 | 1974-10-23 | Mo G Uni Im Mv Lomonosova | Process for preparing a wide-pore adsorbent for use in chromato graphy |
FR2323706A1 (fr) * | 1975-09-10 | 1977-04-08 | Basf Ag | Procede de preparation de polymeres d'olefines |
Also Published As
Publication number | Publication date |
---|---|
BE868791A (nl) | 1979-01-08 |
SE7807950L (sv) | 1979-01-19 |
GB2001043B (en) | 1982-04-21 |
NL7807221A (nl) | 1979-01-22 |
ATA501278A (de) | 1983-07-15 |
DE2831508A1 (de) | 1979-02-01 |
CA1126245A (fr) | 1982-06-22 |
US4228261A (en) | 1980-10-14 |
AT373854B (de) | 1984-02-27 |
IT7850270A0 (it) | 1978-07-12 |
GB2001043A (en) | 1979-01-24 |
NL7707960A (nl) | 1979-01-22 |
US4224189A (en) | 1980-09-23 |
IT1105614B (it) | 1985-11-04 |
FR2398022B1 (fr) | 1985-01-18 |
ES471788A1 (es) | 1979-10-01 |
JPS5420995A (en) | 1979-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |