GB1604708A - Ethylene polymerisation process - Google Patents
Ethylene polymerisation process Download PDFInfo
- Publication number
- GB1604708A GB1604708A GB19876/78A GB1987678A GB1604708A GB 1604708 A GB1604708 A GB 1604708A GB 19876/78 A GB19876/78 A GB 19876/78A GB 1987678 A GB1987678 A GB 1987678A GB 1604708 A GB1604708 A GB 1604708A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- process according
- aluminum
- catalyst
- compound
- 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
- 238000000034 method Methods 0.000 title claims description 26
- 230000008569 process Effects 0.000 title claims description 18
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims description 9
- 239000005977 Ethylene Substances 0.000 title claims description 9
- 239000003054 catalyst Substances 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- -1 polyethylene Polymers 0.000 claims description 42
- 239000011651 chromium Substances 0.000 claims description 35
- 229910052804 chromium Inorganic materials 0.000 claims description 22
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 20
- 239000004698 Polyethylene Substances 0.000 claims description 18
- 229920000573 polyethylene Polymers 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000006116 polymerization reaction Methods 0.000 claims description 14
- 150000001845 chromium compounds Chemical class 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- LALRXNPLTWZJIJ-UHFFFAOYSA-N triethylborane Chemical compound CCB(CC)CC LALRXNPLTWZJIJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 150000001399 aluminium compounds Chemical class 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 229910002028 silica xerogel Inorganic materials 0.000 claims description 3
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 239000002685 polymerization catalyst Substances 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 235000010210 aluminium Nutrition 0.000 description 56
- 229910052782 aluminium Inorganic materials 0.000 description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 38
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 30
- 239000011347 resin Substances 0.000 description 25
- 229920005989 resin Polymers 0.000 description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 23
- 238000000071 blow moulding Methods 0.000 description 11
- 230000004044 response Effects 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 9
- 239000000741 silica gel Substances 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 6
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 6
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- WOZZOSDBXABUFO-UHFFFAOYSA-N tri(butan-2-yloxy)alumane Chemical compound [Al+3].CCC(C)[O-].CCC(C)[O-].CCC(C)[O-] WOZZOSDBXABUFO-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 125000005234 alkyl aluminium group Chemical group 0.000 description 2
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229940117975 chromium trioxide Drugs 0.000 description 2
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 150000002903 organophosphorus compounds Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003348 petrochemical agent Substances 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- CQBWEBXPMRPCSI-UHFFFAOYSA-M O[Cr](O[SiH3])(=O)=O Chemical class O[Cr](O[SiH3])(=O)=O CQBWEBXPMRPCSI-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 1
- JPUHCPXFQIXLMW-UHFFFAOYSA-N aluminium triethoxide Chemical compound CCO[Al](OCC)OCC JPUHCPXFQIXLMW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- DLRHRQTUCJTIIV-UHFFFAOYSA-N diethoxy(ethyl)alumane Chemical compound CC[O-].CC[O-].CC[Al+2] DLRHRQTUCJTIIV-UHFFFAOYSA-N 0.000 description 1
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- GCPCLEKQVMKXJM-UHFFFAOYSA-N ethoxy(diethyl)alumane Chemical compound CCO[Al](CC)CC GCPCLEKQVMKXJM-UHFFFAOYSA-N 0.000 description 1
- AIGRXSNSLVJMEA-FQEVSTJZSA-N ethoxy-(4-nitrophenoxy)-phenyl-sulfanylidene-$l^{5}-phosphane Chemical compound O([P@@](=S)(OCC)C=1C=CC=CC=1)C1=CC=C([N+]([O-])=O)C=C1 AIGRXSNSLVJMEA-FQEVSTJZSA-N 0.000 description 1
- XGAIERUWZADBAO-UHFFFAOYSA-N ethoxy-bis(2-methylpropyl)alumane Chemical compound CCO[Al](CC(C)C)CC(C)C XGAIERUWZADBAO-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- JMRWHIBGEUIERH-UHFFFAOYSA-N methylaluminum(2+);propan-1-olate Chemical compound [Al+2]C.CCC[O-].CCC[O-] JMRWHIBGEUIERH-UHFFFAOYSA-N 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- WXRGABKACDFXMG-UHFFFAOYSA-N trimethylborane Chemical compound CB(C)C WXRGABKACDFXMG-UHFFFAOYSA-N 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- OPSWAWSNPREEFQ-UHFFFAOYSA-K triphenoxyalumane Chemical compound [Al+3].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 OPSWAWSNPREEFQ-UHFFFAOYSA-K 0.000 description 1
- JQPMDTQDAXRDGS-UHFFFAOYSA-N triphenylalumane Chemical compound C1=CC=CC=C1[Al](C=1C=CC=CC=1)C1=CC=CC=C1 JQPMDTQDAXRDGS-UHFFFAOYSA-N 0.000 description 1
- XDSSGQHOYWGIKC-UHFFFAOYSA-N tris(2-methylpropyl)borane Chemical compound CC(C)CB(CC(C)C)CC(C)C XDSSGQHOYWGIKC-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000000196 viscometry Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80058677A | 1977-05-25 | 1977-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1604708A true GB1604708A (en) | 1981-12-16 |
Family
ID=25178793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19876/78A Expired GB1604708A (en) | 1977-05-25 | 1978-05-16 | Ethylene polymerisation process |
Country Status (24)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838261A3 (de) * | 1996-10-22 | 1998-08-12 | Basf Aktiengesellschaft | Verfahren zur Herstellung von geträgerten Chromkatalysatoren |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356294A (en) * | 1980-10-24 | 1982-10-26 | National Petro Chemicals Corp. | Production of polyolefins having improved ESCR |
| DE4134146A1 (de) * | 1991-10-16 | 1993-04-22 | Basf Ag | Phillips-katalysator und seine verwendung zur herstellung von ethylenhomopolymerisaten und -copolymerisaten |
| US6989344B2 (en) * | 2002-12-27 | 2006-01-24 | Univation Technologies, Llc | Supported chromium oxide catalyst for the production of broad molecular weight polyethylene |
| EP2447287B1 (en) * | 2009-06-26 | 2017-07-26 | Japan Polyethylene Corporation | Polyethylene resin, catalyst used for production of the same, method for producing the same, hollow plastic molded article containing polyethylene resin, and use of the hollow plastic molded article |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910596A (enrdf_load_stackoverflow) * | 1972-05-29 | 1974-01-30 | ||
| JPS5134394A (enrdf_load_stackoverflow) * | 1974-09-18 | 1976-03-24 | Hitachi Ltd | |
| JPS5743087B2 (enrdf_load_stackoverflow) * | 1974-09-26 | 1982-09-13 | ||
| IT1054410B (it) * | 1975-11-21 | 1981-11-10 | Mitsui Petrochemical Ind | Catalizzatori per la polimerizzazione delle alfa olefine |
| US4100104A (en) * | 1977-01-13 | 1978-07-11 | National Petro Chemicals Corporation | Catalytic materials as for olefin polymerization |
-
1978
- 1978-05-03 CA CA302,516A patent/CA1094749A/en not_active Expired
- 1978-05-08 AU AU35894/78A patent/AU3589478A/en active Pending
- 1978-05-12 DE DE19782820860 patent/DE2820860A1/de not_active Ceased
- 1978-05-15 ZA ZA00782752A patent/ZA782752B/xx unknown
- 1978-05-16 GB GB19876/78A patent/GB1604708A/en not_active Expired
- 1978-05-19 JP JP5901178A patent/JPS53146287A/ja active Granted
- 1978-05-19 PH PH21162A patent/PH13805A/en unknown
- 1978-05-22 PT PT68070A patent/PT68070B/pt unknown
- 1978-05-22 DD DD78205502A patent/DD137111A5/xx unknown
- 1978-05-23 FI FI781634A patent/FI781634A7/fi not_active Application Discontinuation
- 1978-05-23 ES ES470105A patent/ES470105A1/es not_active Expired
- 1978-05-23 FR FR7815278A patent/FR2391773A1/fr active Granted
- 1978-05-24 PL PL1978207066A patent/PL112965B1/pl unknown
- 1978-05-24 NZ NZ187359A patent/NZ187359A/xx unknown
- 1978-05-24 SE SE7805965A patent/SE7805965L/xx unknown
- 1978-05-24 LU LU79699A patent/LU79699A1/xx unknown
- 1978-05-24 NL NLAANVRAGE7805620,A patent/NL186163C/xx not_active IP Right Cessation
- 1978-05-24 GR GR56318A patent/GR65605B/el unknown
- 1978-05-24 BR BR7803329A patent/BR7803329A/pt unknown
- 1978-05-24 DK DK229478A patent/DK229478A/da unknown
- 1978-05-24 NO NO781806A patent/NO155292C/no unknown
- 1978-05-24 IT IT23767/78A patent/IT1096324B/it active
- 1978-05-25 BE BE188048A patent/BE867488A/xx not_active IP Right Cessation
- 1978-05-29 MX MX787102U patent/MX6326E/es unknown
-
1979
- 1979-02-27 ES ES478118A patent/ES478118A1/es not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838261A3 (de) * | 1996-10-22 | 1998-08-12 | Basf Aktiengesellschaft | Verfahren zur Herstellung von geträgerten Chromkatalysatoren |
| US6008154A (en) * | 1996-10-22 | 1999-12-28 | Basf Aktiengesellschaft | Preparation of supported chromium catalysts |
Also Published As
| Publication number | Publication date |
|---|---|
| MX6326E (es) | 1985-04-09 |
| IT7823767A0 (it) | 1978-05-24 |
| BR7803329A (pt) | 1979-01-02 |
| PH13805A (en) | 1980-10-01 |
| NO155292C (no) | 1987-03-11 |
| SE7805965L (sv) | 1978-11-26 |
| JPS53146287A (en) | 1978-12-20 |
| NL186163C (nl) | 1990-10-01 |
| DE2820860A1 (de) | 1978-11-30 |
| PT68070A (en) | 1978-06-01 |
| IT1096324B (it) | 1985-08-26 |
| FR2391773A1 (fr) | 1978-12-22 |
| DD137111A5 (de) | 1979-08-15 |
| NO155292B (no) | 1986-12-01 |
| NZ187359A (en) | 1980-11-28 |
| PL112965B1 (en) | 1980-11-29 |
| PL207066A1 (pl) | 1979-06-04 |
| BE867488A (fr) | 1978-11-27 |
| JPS646207B2 (enrdf_load_stackoverflow) | 1989-02-02 |
| LU79699A1 (fr) | 1979-02-02 |
| NL7805620A (nl) | 1978-11-28 |
| FI781634A7 (fi) | 1978-11-26 |
| ES478118A1 (es) | 1979-05-16 |
| FR2391773B1 (enrdf_load_stackoverflow) | 1984-12-14 |
| ES470105A1 (es) | 1979-10-01 |
| PT68070B (en) | 1979-10-26 |
| GR65605B (en) | 1980-10-14 |
| DK229478A (da) | 1978-11-26 |
| ZA782752B (en) | 1979-05-30 |
| CA1094749A (en) | 1981-01-27 |
| NO781806L (no) | 1978-11-28 |
| NL186163B (nl) | 1990-05-01 |
| AU3589478A (en) | 1979-11-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950516 |