SK496890A3 - Catalyst for preparing aldehydes - Google Patents
Catalyst for preparing aldehydes Download PDFInfo
- Publication number
- SK496890A3 SK496890A3 SK4968-90A SK496890A SK496890A3 SK 496890 A3 SK496890 A3 SK 496890A3 SK 496890 A SK496890 A SK 496890A SK 496890 A3 SK496890 A3 SK 496890A3
- Authority
- SK
- Slovakia
- Prior art keywords
- catalyst
- monolithic
- alcohol
- partial oxidation
- reactor
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 79
- 150000001299 aldehydes Chemical class 0.000 title 1
- 230000003647 oxidation Effects 0.000 claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 26
- 239000011149 active material Substances 0.000 claims abstract description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011651 chromium Substances 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011572 manganese Substances 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010937 tungsten Substances 0.000 claims abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 3
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 90
- 239000011230 binding agent Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 5
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical class [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 230000003197 catalytic effect Effects 0.000 abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 239000011733 molybdenum Substances 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 58
- 239000007789 gas Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 235000019253 formic acid Nutrition 0.000 description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XEFUJGURFLOFAN-UHFFFAOYSA-N 1,3-dichloro-5-isocyanatobenzene Chemical compound ClC1=CC(Cl)=CC(N=C=O)=C1 XEFUJGURFLOFAN-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910000608 Fe(NO3)3.9H2O Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
- C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8878—Chromium
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK513989A DK513989A (da) | 1989-10-16 | 1989-10-16 | Aldehyd katalysator |
| DK609389A DK609389A (da) | 1989-12-04 | 1989-12-04 | Aldehyd katalysator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SK279333B6 SK279333B6 (sk) | 1998-10-07 |
| SK496890A3 true SK496890A3 (en) | 1998-10-07 |
Family
ID=26067754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK4968-90A SK496890A3 (en) | 1989-10-16 | 1990-10-12 | Catalyst for preparing aldehydes |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US5118868A (ja) |
| EP (1) | EP0423692B1 (ja) |
| JP (1) | JPH075501B2 (ja) |
| KR (1) | KR930004039B1 (ja) |
| AT (1) | ATE141185T1 (ja) |
| CA (1) | CA2027621C (ja) |
| CZ (1) | CZ286616B6 (ja) |
| DE (1) | DE69028062T2 (ja) |
| DK (1) | DK0423692T3 (ja) |
| ES (1) | ES2093007T3 (ja) |
| FI (1) | FI102249B1 (ja) |
| NO (1) | NO300310B1 (ja) |
| SK (1) | SK496890A3 (ja) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044339C (zh) * | 1993-09-24 | 1999-07-28 | 化学工业部北京化工研究院 | 用于甲醇氧化制甲醛的催化剂的制法 |
| US6331503B1 (en) | 1998-04-15 | 2001-12-18 | Lehigh University | In-situ formation of metal-molybdate catalysts |
| DE19844758C1 (de) * | 1998-09-29 | 2000-07-06 | Siemens Ag | Verfahren zur Herstellung eines Katalysatorkörpers |
| US6417376B1 (en) | 1998-10-09 | 2002-07-09 | Abb Lummus Global Inc. | Selective oxidation process and catalyst therefor |
| WO2002022539A2 (en) | 2000-09-14 | 2002-03-21 | Lehigh University | Metal molybdate/iron-molybdate dual catalyst bed system and process using the same for methanol oxidation to formaldehyde |
| US6552233B2 (en) | 2000-09-14 | 2003-04-22 | Lehigh University | Vanadia-titania/metal-molybdate dual catalyst bed system and process using the same for methanol oxidation to formaldehyde |
| US6559345B2 (en) | 2000-09-14 | 2003-05-06 | Leigh University | Dual catalyst bed reactor for methanol oxidation |
| US20020085975A1 (en) * | 2001-01-04 | 2002-07-04 | Wambaugh James Allen | Method to equalize heat distribution in reactor tube |
| WO2003053556A2 (en) * | 2001-12-20 | 2003-07-03 | Lehigh University | Methanol oxidation over bulk metal vanadate catalysts |
| US20050142049A1 (en) * | 2003-12-31 | 2005-06-30 | Amsden Jeffrey M. | Multi-tubular reactors with monolithic catalysts |
| JP4781642B2 (ja) * | 2004-06-07 | 2011-09-28 | 花王株式会社 | アルデヒドの製造方法 |
| ITMI20042456A1 (it) * | 2004-12-22 | 2005-03-22 | Sued Chemie Mt Srl | Catalizzatori per l'ossidazione del metanolo a formaldeide |
| EP1792651A1 (de) * | 2005-11-23 | 2007-06-06 | Süd-Chemie Ag | Schalenkatalysator, insbesondere zur Oxidation von Methanol zu Formaldehyd sowie Verfahren zu dessen Herstellung |
| US7803972B2 (en) * | 2005-11-23 | 2010-09-28 | Süd-Chemie AG | Shell catalyst, in particular for oxidation of methanol to formaldehyde, and also method for production thereof |
| DE102008048698A1 (de) | 2008-09-24 | 2010-04-08 | Süd-Chemie AG | Katalysator zur Oxidation von Methanol zu Formaldehyd |
| DE102008052712A1 (de) | 2008-10-22 | 2010-05-20 | Süd-Chemie AG | Verfahren zur Aktivierung eines Katalysators |
| DE102009014541A1 (de) | 2009-03-24 | 2010-09-30 | Süd-Chemie AG | Katalysatoranordnung zur Oxidation von Methanol zu Formaldehyd |
| DE102011083079A1 (de) | 2011-09-20 | 2013-03-21 | Wacker Chemie Ag | Vanadium-Antimon-Mischoxid Katalysator seine Herstellung und Verfahren zur Partialoxidation von Alkoholen zu Aldehyden |
| DE102014204628A1 (de) | 2014-03-13 | 2015-09-17 | Technische Universität Darmstadt | Vanadium-Antimon-Mischoxid Katalysator seine Herstellung und Verfahren zur Partialoxidation von Alkoholen zu Aldehyden |
| CN112619657A (zh) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | 一种甲醇制甲醛的催化剂、制备方法和应用 |
| CN113457690A (zh) * | 2020-03-30 | 2021-10-01 | 中石化南京化工研究院有限公司 | 用于甲醇氧化制甲醛的催化剂及其制备方法和应用 |
| CN112827496B (zh) * | 2020-12-29 | 2022-04-12 | 上海华谊新材料有限公司 | 负载型复合氧化物催化剂及其制备和应用 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1693092A (en) * | 1927-08-17 | 1928-11-27 | Accurate Gasoline Recording Co | Recording and sales-check mechanism for fluid-dispensing pumps |
| US2320253A (en) * | 1940-03-08 | 1943-05-25 | Du Pont | Process for the production of formaldehyde |
| US2504402A (en) * | 1945-10-27 | 1950-04-18 | Du Pont | Formaldehyde synthesis |
| JPS5069012A (ja) * | 1973-10-26 | 1975-06-09 | ||
| IT1001979B (it) * | 1973-11-28 | 1976-04-30 | Sir Soc Italiana Resine Spa | Procedimento per la produzione di formaldeide mediante ossidazione catalitica del metanolo |
| JPS52122293A (en) * | 1976-04-08 | 1977-10-14 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purifying nox |
| DE2630928A1 (de) * | 1976-07-09 | 1978-01-19 | Basf Ag | Verfahren zur herstellung von formaldehyd |
| GB1603821A (en) * | 1977-04-15 | 1981-12-02 | Johnson Matthey Co Ltd | Catalysts for the production of formaldehyde |
| DE2747581A1 (de) * | 1977-10-24 | 1979-04-26 | Basf Ag | Verfahren zur herstellung von formaldehyd |
| JPS55159842A (en) * | 1979-06-01 | 1980-12-12 | Nichias Corp | Denitrification catalyst structure body and production thereof |
| JPS5915028B2 (ja) * | 1980-03-26 | 1984-04-07 | ニチアス株式会社 | 触媒担体の製造法 |
| US4421938A (en) * | 1982-04-05 | 1983-12-20 | Uop Inc. | Preparation of aldehydes |
| CH653917A5 (de) * | 1982-04-07 | 1986-01-31 | Alusuisse | Katalysatortraeger und seine verwendung. |
| US4471141A (en) | 1983-02-22 | 1984-09-11 | Uop Inc. | Preparation of aldehydes |
| IT1214489B (it) * | 1985-04-24 | 1990-01-18 | Ausind Spa | Catalizzatori ad alta resa e ad elevata resistenza meccanica, particolarmente adatto perl'ossidazione del metanolo a formaldeide. |
| JPS63240948A (ja) * | 1987-03-26 | 1988-10-06 | Asahi Chem Ind Co Ltd | ホルムアルデヒド製造触媒の再生方法 |
| DE3737248A1 (de) * | 1987-11-03 | 1989-05-18 | Basf Ag | Monolithischer katalysatorkoerper |
| US4925957A (en) * | 1988-02-24 | 1990-05-15 | Kawasaki Steel Corp. | Process for producing pyromellitic dianhydride |
-
1990
- 1990-10-12 SK SK4968-90A patent/SK496890A3/sk not_active IP Right Cessation
- 1990-10-12 CZ CS19904968A patent/CZ286616B6/cs not_active IP Right Cessation
- 1990-10-12 US US07/596,677 patent/US5118868A/en not_active Expired - Lifetime
- 1990-10-15 FI FI905064A patent/FI102249B1/fi active IP Right Grant
- 1990-10-15 DE DE69028062T patent/DE69028062T2/de not_active Expired - Fee Related
- 1990-10-15 EP EP90119761A patent/EP0423692B1/en not_active Expired - Lifetime
- 1990-10-15 DK DK90119761.6T patent/DK0423692T3/da active
- 1990-10-15 NO NO904438A patent/NO300310B1/no not_active IP Right Cessation
- 1990-10-15 AT AT90119761T patent/ATE141185T1/de not_active IP Right Cessation
- 1990-10-15 CA CA002027621A patent/CA2027621C/en not_active Expired - Lifetime
- 1990-10-15 ES ES90119761T patent/ES2093007T3/es not_active Expired - Lifetime
- 1990-10-16 KR KR1019900016473A patent/KR930004039B1/ko not_active IP Right Cessation
- 1990-10-16 JP JP2275507A patent/JPH075501B2/ja not_active Expired - Fee Related
-
1992
- 1992-03-12 US US07/850,266 patent/US5217936A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SK279333B6 (sk) | 1998-10-07 |
| JPH03137936A (ja) | 1991-06-12 |
| EP0423692B1 (en) | 1996-08-14 |
| DE69028062T2 (de) | 1996-12-19 |
| US5217936A (en) | 1993-06-08 |
| FI102249B (fi) | 1998-11-13 |
| CA2027621C (en) | 2000-04-11 |
| US5118868A (en) | 1992-06-02 |
| EP0423692A1 (en) | 1991-04-24 |
| FI102249B1 (fi) | 1998-11-13 |
| CA2027621A1 (en) | 1991-04-17 |
| ES2093007T3 (es) | 1996-12-16 |
| FI905064A0 (fi) | 1990-10-15 |
| NO904438L (no) | 1991-04-17 |
| DK0423692T3 (da) | 1996-09-09 |
| KR930004039B1 (ko) | 1993-05-19 |
| DE69028062D1 (de) | 1996-09-19 |
| CZ496890A3 (cs) | 1999-08-11 |
| JPH075501B2 (ja) | 1995-01-25 |
| NO300310B1 (no) | 1997-05-12 |
| CZ286616B6 (cs) | 2000-05-17 |
| ATE141185T1 (de) | 1996-08-15 |
| NO904438D0 (no) | 1990-10-15 |
| KR910007571A (ko) | 1991-05-30 |
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| MK4A | Patent expired |
Expiry date: 20101012 |