GB1369906A - Preparation and use in olefin polymerisation of silica-based catalysts - Google Patents
Preparation and use in olefin polymerisation of silica-based catalystsInfo
- Publication number
- GB1369906A GB1369906A GB4679271A GB4679271A GB1369906A GB 1369906 A GB1369906 A GB 1369906A GB 4679271 A GB4679271 A GB 4679271A GB 4679271 A GB4679271 A GB 4679271A GB 1369906 A GB1369906 A GB 1369906A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogel
- water
- solution
- silica
- acid
- 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.)
- Expired
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 8
- 239000003054 catalyst Substances 0.000 title abstract 5
- 239000000377 silicon dioxide Substances 0.000 title abstract 4
- 150000001336 alkenes Chemical class 0.000 title abstract 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000000017 hydrogel Substances 0.000 abstract 11
- 239000000243 solution Substances 0.000 abstract 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 5
- 239000002253 acid Substances 0.000 abstract 5
- 239000007788 liquid Substances 0.000 abstract 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 3
- 150000003863 ammonium salts Chemical class 0.000 abstract 3
- 238000010533 azeotropic distillation Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 238000005406 washing Methods 0.000 abstract 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract 2
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 abstract 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 abstract 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 abstract 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 abstract 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 2
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 229940043265 methyl isobutyl ketone Drugs 0.000 abstract 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 abstract 2
- 229910002028 silica xerogel Inorganic materials 0.000 abstract 2
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 2
- BCEIUDAMUFAQMG-UHFFFAOYSA-M CC(C)(C)O[Cr](O)(=O)=O Chemical compound CC(C)(C)O[Cr](O)(=O)=O BCEIUDAMUFAQMG-UHFFFAOYSA-M 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 abstract 1
- 229940011051 isopropyl acetate Drugs 0.000 abstract 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 238000001694 spray drying Methods 0.000 abstract 1
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 abstract 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
- C01B33/16—Preparation of silica xerogels
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polymerization Catalysts (AREA)
- Silicon Compounds (AREA)
- Catalysts (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US079316A US3900457A (en) | 1970-10-08 | 1970-10-08 | Olefin polymerization catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1369906A true GB1369906A (en) | 1974-10-09 |
Family
ID=22149769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4679271A Expired GB1369906A (en) | 1970-10-08 | 1971-10-07 | Preparation and use in olefin polymerisation of silica-based catalysts |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3900457A (enExample) |
| JP (1) | JPS5323787B1 (enExample) |
| BE (1) | BE773655A (enExample) |
| CA (1) | CA1016528A (enExample) |
| ES (1) | ES395791A1 (enExample) |
| FR (1) | FR2111169A5 (enExample) |
| GB (1) | GB1369906A (enExample) |
| IT (1) | IT938955B (enExample) |
| SE (1) | SE397959B (enExample) |
| ZA (1) | ZA714390B (enExample) |
Families Citing this family (77)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4009327A (en) * | 1972-07-31 | 1977-02-22 | Phillips Petroleum Company | Polymerization of olefins |
| DE2455535A1 (de) * | 1974-11-23 | 1976-05-26 | Basf Ag | Verfahren zum herstellen von olefinpolymerisaten |
| DE2509261C2 (de) * | 1975-03-04 | 1984-03-01 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen von Olefinpolymerisaten durch Polymerisation von C↓2↓- bis C↓8↓-α-Monoolefinen |
| US4053435A (en) * | 1975-03-12 | 1977-10-11 | Gulf Research & Development Company | Catalysts for the polymerization of ethylene |
| DE2540278C2 (de) * | 1975-09-10 | 1982-09-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen von Olefinpolymerisaten |
| DE2540279C2 (de) * | 1975-09-10 | 1987-02-05 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen eines Katalysators für die Polymerisation von Olefinen |
| US4246139A (en) * | 1975-09-15 | 1981-01-20 | Phillips Petroleum Company | Silica production |
| US4081407A (en) * | 1976-03-18 | 1978-03-28 | Phillips Petroleum Company | Catalyst support prepared by alcohol treatment of hydrogels |
| US4151122A (en) | 1977-12-05 | 1979-04-24 | Phillips Petroleum Company | Reduction and reoxidation of cogel or self-reduced catalyst |
| US4169926A (en) * | 1978-01-16 | 1979-10-02 | Phillips Petroleum Company | Inorganic hydrogels and uses thereof |
| US4397766A (en) * | 1979-12-14 | 1983-08-09 | Phillips Petroleum Company | Solubilized chromium salt in particulate support |
| US4368301A (en) * | 1979-12-14 | 1983-01-11 | Phillips Petroleum Company | Solubilized chromium salt in polymerization catalyst |
| US4333860A (en) * | 1979-12-14 | 1982-06-08 | Phillips Petroleum Company | Solubilized chromium salt in polymerization catalyst |
| US4325839A (en) * | 1979-12-21 | 1982-04-20 | Phillips Petroleum Company | Impregnated second valence chromium compound in supported catalyst |
| US4369295A (en) * | 1979-12-21 | 1983-01-18 | Phillips Petroleum Company | Impregnated second valence chromium compound in supported catalyst |
| US4312967A (en) * | 1980-02-06 | 1982-01-26 | Phillips Petroleum Co. | Polymerization catalyst and process |
| US4345055A (en) * | 1980-02-06 | 1982-08-17 | Phillips Petroleum Company | Polymerization with titanium impregnated silica-chromium catalysts |
| US4444968A (en) * | 1980-12-31 | 1984-04-24 | Phillips Petroleum Company | Olefin polymerization with phosphate supported zerovalent chromium |
| US4364841A (en) * | 1980-12-31 | 1982-12-21 | Phillips Petroleum Company | Phosphate containing support with zerovalent chromium |
| US5093300A (en) * | 1983-04-04 | 1992-03-03 | Solvay & Cie (Societe Anonyme) | Method for activating a chromium-containing catalyst supported on a silica-containing base |
| US5200478A (en) * | 1983-04-04 | 1993-04-06 | Solvay S.A. | Method for activating supported chromium oxide catalysts and olefin polymerization process carried out therewith |
| US5115053A (en) * | 1988-07-25 | 1992-05-19 | Phillips Petroleum Company | Twice-aged porous inorganic oxides, catalysts, and polymerization processes |
| US4981831A (en) * | 1988-07-25 | 1991-01-01 | Phillips Petroleum Company | Twice-aged porous inorganic oxides, catalysts, and polymerization processes |
| US5451645A (en) * | 1989-08-10 | 1995-09-19 | Phillips Petroleum Company | Process for olefin polymerization |
| US5171801A (en) * | 1989-10-06 | 1992-12-15 | Phillips Petroleum Company | Process for olefin polymerization |
| US4988657A (en) * | 1989-10-06 | 1991-01-29 | Phillips Petroleum Company | Process for olefin polymerization |
| US5071927A (en) * | 1990-10-09 | 1991-12-10 | Phillips Petroleum Company | High-temperature slurry polymerization of ethylene |
| US5183792A (en) * | 1991-11-26 | 1993-02-02 | Allied-Signal Inc. | Catalyst for making polyethylene |
| DE69217878T2 (de) * | 1991-12-18 | 1997-06-12 | Phillips Petroleum Co | Verfahren zur Herstellung von Polymerisationskatalysator |
| GB9210265D0 (en) * | 1992-05-13 | 1992-07-01 | Unilever Plc | Catalysts and catalyst supports |
| US5508362A (en) † | 1993-10-08 | 1996-04-16 | Phillips Petroleum Company | Chromium catalyst compositions and polymerization processes therewith |
| US5439624A (en) * | 1994-02-14 | 1995-08-08 | Wisconsin Alumni Research Foundation | Method for forming porous ceramic materials |
| CA2146034A1 (en) | 1994-05-12 | 1995-11-13 | Kenneth W. Willcox | Polymer stabilization |
| DE69528073T2 (de) * | 1994-06-02 | 2003-04-30 | W.R. Grace & Co.-Conn., New York | Polyolefinkatalysator mit grossem porenvolumen |
| US5576262A (en) * | 1994-06-02 | 1996-11-19 | W. R. Grace & Co.-Conn. | Glycol ether compounds for the production of polyolefin catalysts and supports |
| DE19735770C1 (de) | 1997-08-18 | 1999-05-27 | Bayer Ag | Verfahren zur Herstellung von Diarylcarbonaten |
| US6670302B2 (en) | 1997-11-14 | 2003-12-30 | W. R. Grace & Co.-Conn | High pore volume polyolefin catalyst |
| BE1012566A3 (fr) * | 1999-03-23 | 2000-12-05 | Solvay | Procede pour la production de polymeres de l'ethylene. |
| ES2450927T3 (es) | 2004-04-22 | 2014-03-25 | Chevron Phillips Chemical Company Lp | Sistemas catalizadores para producir polímeros que tienen distribuciones anchas de peso molecular y métodos para preparar los mismos |
| US7307133B2 (en) * | 2004-04-22 | 2007-12-11 | Chevron Phillips Chemical Company Lp | Polymers having broad molecular weight distributions and methods of making the same |
| US6977235B2 (en) * | 2004-04-22 | 2005-12-20 | Chevron Phillips Chemical Company, Lp | Catalyst systems comprising a calcined chromium catalyst and a non-transition metal cyclopentadienyl cocatalyst |
| US20060155082A1 (en) * | 2005-01-10 | 2006-07-13 | Mcdaniel Max P | Process for producing polymers |
| DE102009011686A1 (de) | 2008-03-06 | 2009-09-10 | Sumitomo Chemical Co. Ltd. | Verfahren zur Herstellung eines Katalysatorbestandteils und eines Katalysators für die Additionspolymerisation sowie eines Additionspolymers |
| KR101820064B1 (ko) * | 2010-06-24 | 2018-01-18 | 피큐 코포레이션 | 촉매 지지체, 촉매 및 이들의 제조 및 용도 |
| US8440772B2 (en) | 2011-04-28 | 2013-05-14 | Chevron Phillips Chemical Company Lp | Methods for terminating olefin polymerizations |
| US8487053B2 (en) | 2011-11-30 | 2013-07-16 | Chevron Phillips Chemical Company Lp | Methods for removing polymer skins from reactor walls |
| US9023967B2 (en) | 2011-11-30 | 2015-05-05 | Chevron Phillips Chemical Company Lp | Long chain branched polymers and methods of making same |
| US8501882B2 (en) | 2011-12-19 | 2013-08-06 | Chevron Phillips Chemical Company Lp | Use of hydrogen and an organozinc compound for polymerization and polymer property control |
| US8703883B2 (en) | 2012-02-20 | 2014-04-22 | Chevron Phillips Chemical Company Lp | Systems and methods for real-time catalyst particle size control in a polymerization reactor |
| US10273315B2 (en) | 2012-06-20 | 2019-04-30 | Chevron Phillips Chemical Company Lp | Methods for terminating olefin polymerizations |
| US8916494B2 (en) | 2012-08-27 | 2014-12-23 | Chevron Phillips Chemical Company Lp | Vapor phase preparation of fluorided solid oxides |
| US8940842B2 (en) | 2012-09-24 | 2015-01-27 | Chevron Phillips Chemical Company Lp | Methods for controlling dual catalyst olefin polymerizations |
| EP2921538B1 (en) * | 2012-11-13 | 2021-01-27 | Chugoku Marine Paints, Ltd. | Antifouling coating composition, antifouling coating film, antifouling substrate, and method for improving storage stability of antifouling coating composition |
| WO2014095889A1 (de) * | 2012-12-17 | 2014-06-26 | Lanxess Deutschland Gmbh | Fungizide silikon-dichtungsmassen |
| US10577440B2 (en) | 2013-03-13 | 2020-03-03 | Chevron Phillips Chemical Company Lp | Radically coupled resins and methods of making and using same |
| US10654948B2 (en) | 2013-03-13 | 2020-05-19 | Chevron Phillips Chemical Company Lp | Radically coupled resins and methods of making and using same |
| US9708426B2 (en) | 2015-06-01 | 2017-07-18 | Chevron Phillips Chemical Company Lp | Liquid-solid sampling system for a loop slurry reactor |
| US10213766B2 (en) | 2015-09-18 | 2019-02-26 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| WO2017078974A1 (en) | 2015-11-05 | 2017-05-11 | Chevron Phillips Chemical Company Lp | Radically coupled resins and methods of making and using same |
| US10005861B2 (en) | 2016-06-09 | 2018-06-26 | Chevron Phillips Chemical Company Lp | Methods for increasing polymer production rates with halogenated hydrocarbon compounds |
| US9988468B2 (en) | 2016-09-30 | 2018-06-05 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| US11267914B2 (en) | 2016-12-29 | 2022-03-08 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| US20200369803A1 (en) | 2016-12-29 | 2020-11-26 | Chevron Phillips Chemical Company Lp | Methods of Preparing a Catalyst |
| US10654953B2 (en) | 2016-12-29 | 2020-05-19 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| US10550252B2 (en) | 2017-04-20 | 2020-02-04 | Chevron Phillips Chemical Company Lp | Bimodal PE resins with improved melt strength |
| US10287369B2 (en) | 2017-04-24 | 2019-05-14 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| US10323109B2 (en) | 2017-11-17 | 2019-06-18 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst utilizing hydrated reagents |
| US10513570B2 (en) | 2017-11-17 | 2019-12-24 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst |
| US11266976B2 (en) | 2018-04-16 | 2022-03-08 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst with low HRVOC emissions |
| US10722874B2 (en) | 2018-04-16 | 2020-07-28 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst utilizing hydrated reagents |
| US10543480B2 (en) | 2018-04-16 | 2020-01-28 | Chevron Phillips Chemical Company Lp | Methods of preparing a catalyst utilizing hydrated reagents |
| US10774161B2 (en) | 2019-01-31 | 2020-09-15 | Chevron Phillips Chemical Company Lp | Systems and methods for polyethylene recovery with low volatile content |
| US11674023B2 (en) | 2020-10-15 | 2023-06-13 | Chevron Phillips Chemical Company Lp | Polymer composition and methods of making and using same |
| US12077616B2 (en) | 2021-12-15 | 2024-09-03 | Chevron Phillips Chemical Company Lp | Production of polyethylene and ethylene oligomers from ethanol and the use of biomass and waste streams as feedstocks to produce the ethanol |
| US11845814B2 (en) | 2022-02-01 | 2023-12-19 | Chevron Phillips Chemical Company Lp | Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor |
| US12466900B2 (en) | 2022-04-19 | 2025-11-11 | Chevron Phillips Chemical Company Lp | Loop slurry periodogram control to prevent reactor fouling and reactor shutdowns |
| WO2025042807A1 (en) | 2023-08-22 | 2025-02-27 | Chevron Phillips Chemical Company Lp | Integrated processes utilizing water electrolysis and oxidative dehydrogenation of ethane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429319A (en) * | 1943-03-26 | 1947-10-21 | Standard Oil Dev Co | Method of producing easily pulverized xerogel |
| LU34020A1 (enExample) * | 1953-01-27 | 1956-02-06 | ||
| US2978298A (en) * | 1956-09-04 | 1961-04-04 | Gen Electric | Process for producing hydrophobic aerogels |
| US3127370A (en) * | 1958-05-28 | 1964-03-31 | Method of making fiber-grade polyethylene | |
| NL98946C (enExample) * | 1959-09-22 | |||
| US3225023A (en) * | 1962-11-30 | 1965-12-21 | Phillips Petroleum Co | Process for controlling melt index |
-
1970
- 1970-10-08 US US079316A patent/US3900457A/en not_active Expired - Lifetime
-
1971
- 1971-05-06 CA CA112,333A patent/CA1016528A/en not_active Expired
- 1971-07-05 ZA ZA714390A patent/ZA714390B/xx unknown
- 1971-08-05 JP JP5929171A patent/JPS5323787B1/ja active Pending
- 1971-10-05 IT IT29532/71A patent/IT938955B/it active
- 1971-10-07 SE SE7112680A patent/SE397959B/xx unknown
- 1971-10-07 GB GB4679271A patent/GB1369906A/en not_active Expired
- 1971-10-07 ES ES395791A patent/ES395791A1/es not_active Expired
- 1971-10-08 FR FR7136306A patent/FR2111169A5/fr not_active Expired
- 1971-10-08 BE BE773655A patent/BE773655A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA714390B (en) | 1972-03-29 |
| BE773655A (fr) | 1972-04-10 |
| JPS5323787B1 (enExample) | 1978-07-17 |
| IT938955B (it) | 1973-02-10 |
| CA1016528A (en) | 1977-08-30 |
| ES395791A1 (es) | 1974-10-16 |
| US3900457A (en) | 1975-08-19 |
| SE397959B (sv) | 1977-11-28 |
| FR2111169A5 (enExample) | 1972-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |