NL8103235A - Werkwijze voor de bereiding van een zeoliet bevattende katalysator. - Google Patents
Werkwijze voor de bereiding van een zeoliet bevattende katalysator. Download PDFInfo
- Publication number
- NL8103235A NL8103235A NL8103235A NL8103235A NL8103235A NL 8103235 A NL8103235 A NL 8103235A NL 8103235 A NL8103235 A NL 8103235A NL 8103235 A NL8103235 A NL 8103235A NL 8103235 A NL8103235 A NL 8103235A
- Authority
- NL
- Netherlands
- Prior art keywords
- zeolite
- aluminum
- process according
- catalyst
- sodium aluminate
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 12
- 239000010457 zeolite Substances 0.000 claims description 59
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 58
- 229910021536 Zeolite Inorganic materials 0.000 claims description 53
- 238000002360 preparation method Methods 0.000 claims description 15
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 12
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 6
- 239000000017 hydrogel Substances 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 5
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 239000000499 gel Substances 0.000 claims description 4
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 241000251468 Actinopterygii Species 0.000 claims 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 claims 1
- 239000000243 solution Substances 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 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 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 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
- -1 aluminum hydroxy halide Chemical class 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000002779 inactivation Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012013 faujasite Substances 0.000 description 1
- 229910001657 ferrierite group Inorganic materials 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- WHOPEPSOPUIRQQ-UHFFFAOYSA-N oxoaluminum Chemical compound O1[Al]O[Al]1 WHOPEPSOPUIRQQ-UHFFFAOYSA-N 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000005406 washing Methods 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/084—Y-type faujasite
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
- C10G11/04—Oxides
- C10G11/05—Crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/42—Addition of matrix or binder particles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16729780 | 1980-07-10 | ||
| US06/167,297 US4332699A (en) | 1980-07-10 | 1980-07-10 | Catalyst preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8103235A true NL8103235A (nl) | 1982-02-01 |
Family
ID=22606778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8103235A NL8103235A (nl) | 1980-07-10 | 1981-07-07 | Werkwijze voor de bereiding van een zeoliet bevattende katalysator. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4332699A (it) |
| JP (1) | JPS5748344A (it) |
| AU (1) | AU545669B2 (it) |
| BR (1) | BR8104279A (it) |
| CA (1) | CA1160200A (it) |
| DE (1) | DE3126521A1 (it) |
| FR (1) | FR2486419A1 (it) |
| GB (1) | GB2079737A (it) |
| IT (1) | IT1137288B (it) |
| NL (1) | NL8103235A (it) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332599A (en) * | 1977-01-12 | 1982-06-01 | Douwe Egberts Koninklijke, Tabaksfabriek-Koffiebranderijen - Theehandel B.V. | Continuous packed bed wash column |
| US4728629A (en) * | 1980-08-05 | 1988-03-01 | Phillips Petroleum Company | Cracking catalyst restoration with aluminum compounds |
| US4790927A (en) * | 1981-05-26 | 1988-12-13 | Union Oil Company Of California | Process for simultaneous hydrotreating and hydrodewaxing of hydrocarbons |
| US4877762A (en) * | 1981-05-26 | 1989-10-31 | Union Oil Company Of California | Catalyst for simultaneous hydrotreating and hydrodewaxing of hydrocarbons |
| US4481104A (en) * | 1981-10-26 | 1984-11-06 | Mobil Oil Corporation | Use of low acidity high silica to alumina ratio large pore zeolites for distillate production in catalytic cracking |
| US4427787A (en) * | 1982-03-08 | 1984-01-24 | Mobil Oil Corporation | Activation of zeolites |
| US4452909A (en) * | 1982-09-13 | 1984-06-05 | E. I. Du Pont De Nemours And Company | Process for coating crystalline silica polymorphs |
| US4579831A (en) * | 1983-03-29 | 1986-04-01 | Chevron Research Company | Method of zeolitic catalyst manufacture |
| AU570926B2 (en) * | 1983-08-15 | 1988-03-31 | Mobil Oil Corp. | Enhancing activity of zeolite catalysts |
| EP0134850B1 (en) * | 1983-08-15 | 1987-08-12 | Mobil Oil Corporation | Treatment of zeolites |
| US4847225A (en) * | 1984-10-05 | 1989-07-11 | W. R. Grace & Co.-Conn. | Catalysts and catalyst supports |
| US4683334A (en) * | 1985-04-30 | 1987-07-28 | E. I. Du Pont De Nemours & Company | Modified 8-ring zeolites as catalysts for conversion of methanol and ammonia to dimethylamine |
| DE3838710A1 (de) * | 1988-11-15 | 1990-05-17 | Sued Chemie Ag | Katalysator auf der basis von kristallinen alumosilikaten |
| CN1070735C (zh) * | 1994-06-03 | 2001-09-12 | 阿克佐诺贝尔公司 | 含有被涂布沸石颗粒的流化催化裂化催化剂 |
| US6673734B1 (en) | 1994-10-03 | 2004-01-06 | Exxonmobil Research And Engineering Company | Crystalline microporous oxide catalysts having increased Lewis acidity and methods for the preparation thereof |
| US6482313B1 (en) | 1994-10-03 | 2002-11-19 | Exxonmobil Research And Engineering Company | FCC process incorporating crystalline microporous oxide catalysts having increased Lewis acidity |
| US6605207B2 (en) * | 2001-04-13 | 2003-08-12 | W. R. Grace & Co. - Conn. | Bayerite alumina clad zeolite and cracking catalysts containing same |
| EP1264635A1 (en) * | 2001-06-05 | 2002-12-11 | Akzo Nobel N.V. | Process for the production of catalysts with improved accessibility |
| EP2045012A4 (en) * | 2006-06-28 | 2013-10-23 | Idemitsu Kosan Co | CATALYST FOR FLUID CATALYTIC CRACKING HAVING DESULFURING FUNCTIONS, PRODUCTION PROCESS THEREOF, AND CATALYTICALLY CRACKED SULFUR SULFUR PRODUCTION PROCESS USING THE CATALYST |
| CN110090660B (zh) * | 2018-01-30 | 2022-01-04 | 中国石油化工股份有限公司 | 一种含y型分子筛的复合材料及其制备方法 |
| CN110871102B (zh) * | 2018-08-29 | 2022-06-24 | 中国石油化工股份有限公司 | 一种含y型分子筛的微介孔复合材料的制备方法 |
| CN111617797A (zh) * | 2019-02-28 | 2020-09-04 | 中国石油化工股份有限公司 | 一种稀土型复合催化材料的制备方法 |
| CN111617798A (zh) * | 2019-02-28 | 2020-09-04 | 中国石油化工股份有限公司 | 一种稀土改性复合材料的制备方法 |
| CN111744533A (zh) * | 2019-03-27 | 2020-10-09 | 中国石油化工股份有限公司 | 一种稀土型多级孔材料的制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB824825A (en) * | 1956-12-26 | 1959-12-02 | Bataafsche Petroleum | A process for preparing a molecular sieve composite |
| US3542670A (en) * | 1965-05-21 | 1970-11-24 | Sinclair Research Inc | Catalyst comprising silica-alumina,separate phase alumina and crystalline alumino silicate |
| US3629152A (en) * | 1967-10-03 | 1971-12-21 | American Cyanamid Co | Process for preparing alumina-coated silica catalyst material and the material so prepared |
| US3650988A (en) * | 1969-09-15 | 1972-03-21 | Grace W R & Co | Hydrocarbon conversion catalysts |
| US3677973A (en) * | 1970-03-16 | 1972-07-18 | Universal Oil Prod Co | Transalkylation of alklaromatic hydrocarbons in contact with a zeolite catalyst composition |
| GB1462976A (en) * | 1973-02-28 | 1977-01-26 | Grace W R & Co | Method of preparing highly attrition-resistant particles of a hydrocarbon cracking catalyst |
| US3956104A (en) * | 1974-08-09 | 1976-05-11 | Universal Oil Products Company | Hydrocracking process |
-
1980
- 1980-07-10 US US06/167,297 patent/US4332699A/en not_active Expired - Lifetime
-
1981
- 1981-07-04 DE DE3126521A patent/DE3126521A1/de not_active Withdrawn
- 1981-07-06 BR BR8104279A patent/BR8104279A/pt unknown
- 1981-07-06 AU AU72585/81A patent/AU545669B2/en not_active Ceased
- 1981-07-06 GB GB8120803A patent/GB2079737A/en not_active Withdrawn
- 1981-07-07 IT IT22794/81A patent/IT1137288B/it active
- 1981-07-07 NL NL8103235A patent/NL8103235A/nl not_active Application Discontinuation
- 1981-07-07 CA CA000381280A patent/CA1160200A/en not_active Expired
- 1981-07-08 JP JP56105725A patent/JPS5748344A/ja active Pending
- 1981-07-09 FR FR8113535A patent/FR2486419A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CA1160200A (en) | 1984-01-10 |
| AU545669B2 (en) | 1985-07-25 |
| JPS5748344A (en) | 1982-03-19 |
| AU7258581A (en) | 1982-01-14 |
| GB2079737A (en) | 1982-01-27 |
| IT8122794A0 (it) | 1981-07-07 |
| FR2486419A1 (fr) | 1982-01-15 |
| BR8104279A (pt) | 1982-03-23 |
| IT1137288B (it) | 1986-09-03 |
| DE3126521A1 (de) | 1982-06-09 |
| US4332699A (en) | 1982-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |