NL8801036A - Werkwijze voor de bereiding van cyclohexanol en/of cyclohexanon. - Google Patents
Werkwijze voor de bereiding van cyclohexanol en/of cyclohexanon. Download PDFInfo
- Publication number
- NL8801036A NL8801036A NL8801036A NL8801036A NL8801036A NL 8801036 A NL8801036 A NL 8801036A NL 8801036 A NL8801036 A NL 8801036A NL 8801036 A NL8801036 A NL 8801036A NL 8801036 A NL8801036 A NL 8801036A
- Authority
- NL
- Netherlands
- Prior art keywords
- cyclohexene
- cyclohexanol
- cyclohexane
- cyclohexanone
- benzene
- Prior art date
Links
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 title claims abstract description 60
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 40
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 111
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 claims abstract description 100
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000006356 dehydrogenation reaction Methods 0.000 claims abstract description 21
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000036571 hydration Effects 0.000 claims abstract description 11
- 238000006703 hydration reaction Methods 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000006213 oxygenation reaction Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 description 2
- FWFSEYBSWVRWGL-UHFFFAOYSA-N cyclohexene oxide Natural products O=C1CCCC=C1 FWFSEYBSWVRWGL-UHFFFAOYSA-N 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical compound CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- OPFTUNCRGUEPRZ-QLFBSQMISA-N Cyclohexane Natural products CC(=C)[C@@H]1CC[C@@](C)(C=C)[C@H](C(C)=C)C1 OPFTUNCRGUEPRZ-QLFBSQMISA-N 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229920004482 WACKER® Polymers 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- VTEMZXZTDRBGGY-UHFFFAOYSA-N [O].C1CCCCC1 Chemical compound [O].C1CCCCC1 VTEMZXZTDRBGGY-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- -1 cyclohexanol ester Chemical class 0.000 description 1
- GCFAUZGWPDYAJN-UHFFFAOYSA-N cyclohexyl 3-phenylprop-2-enoate Chemical compound C=1C=CC=CC=1C=CC(=O)OC1CCCCC1 GCFAUZGWPDYAJN-UHFFFAOYSA-N 0.000 description 1
- UCZUCGRGTXIWLR-UHFFFAOYSA-N cyclohexyl hydrogen sulfate Chemical compound OS(=O)(=O)OC1CCCCC1 UCZUCGRGTXIWLR-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000895 extractive distillation Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 229910021474 group 7 element Inorganic materials 0.000 description 1
- 229910021472 group 8 element Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C27/00—Processes involving the simultaneous production of more than one class of oxygen-containing compounds
- C07C27/10—Processes involving the simultaneous production of more than one class of oxygen-containing compounds by oxidation of hydrocarbons
- C07C27/12—Processes involving the simultaneous production of more than one class of oxygen-containing compounds by oxidation of hydrocarbons with oxygen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
-
- 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
- C07C45/33—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 CHx-moieties
- C07C45/34—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 CHx-moieties in unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/29—Saturated compounds containing keto groups bound to rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Seasonings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8801036A NL8801036A (nl) | 1988-04-21 | 1988-04-21 | Werkwijze voor de bereiding van cyclohexanol en/of cyclohexanon. |
| US07/334,142 US4927974A (en) | 1988-04-21 | 1989-04-06 | Process for the preparation of cyclohexanol and/or cyclohexanone |
| SU894613851A RU1833359C (en) | 1988-04-21 | 1989-04-13 | Method of synthesis of cyclohexanol or cyclohexanone |
| EP89200970A EP0340827B1 (en) | 1988-04-21 | 1989-04-17 | Process for the preparation of cyclohexanol and/or cyclohexanone |
| AT89200970T ATE84776T1 (de) | 1988-04-21 | 1989-04-17 | Verfahren zur herstellung von cyclohexanol und/oder cyclohexanon. |
| ES198989200970T ES2038819T3 (es) | 1988-04-21 | 1989-04-17 | Procedimiento para la preparacion de ciclohexanol y/o ciclohexanona. |
| DE8989200970T DE68904466T2 (de) | 1988-04-21 | 1989-04-17 | Verfahren zur herstellung von cyclohexanol und/oder cyclohexanon. |
| CA000597103A CA1327212C (en) | 1988-04-21 | 1989-04-19 | Process for the preparation of cyclohexanol and/or cyclohexanone |
| KR1019890005239A KR920000443B1 (ko) | 1988-04-21 | 1989-04-19 | 사이클로헥사놀 및/또는 사이클로헥사논의 제조방법 |
| CN89102604A CN1023216C (zh) | 1988-04-21 | 1989-04-19 | 制备环己醇和/或环己酮的方法 |
| MX015740A MX169563B (es) | 1988-04-21 | 1989-04-20 | Procedimiento para la preparacion de ciclohexanol y/o ciclohexanona |
| BR898901880A BR8901880A (pt) | 1988-04-21 | 1989-04-20 | Processo para a preparacao de ciclohexanol e/ou ciclohexanona |
| CS892478A CS277195B6 (en) | 1988-04-21 | 1989-04-20 | Cyclohexanol and/or cyclohexanone production method |
| JP1100347A JP2688246B2 (ja) | 1988-04-21 | 1989-04-21 | シクロヘキサノールおよび／またはシクロヘキサノンの製造方法 |
| SG252/93A SG25293G (en) | 1988-04-21 | 1993-03-06 | Process for the preparation of cyclohexanol and/or cyclohexanone |
| GEAP1993907A GEP19960308B (en) | 1988-04-21 | 1993-06-21 | Method for Production of Cyclohexanol and/or Cyclohexanone |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8801036A NL8801036A (nl) | 1988-04-21 | 1988-04-21 | Werkwijze voor de bereiding van cyclohexanol en/of cyclohexanon. |
| NL8801036 | 1988-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8801036A true NL8801036A (nl) | 1989-11-16 |
Family
ID=19852177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8801036A NL8801036A (nl) | 1988-04-21 | 1988-04-21 | Werkwijze voor de bereiding van cyclohexanol en/of cyclohexanon. |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4927974A (cs) |
| EP (1) | EP0340827B1 (cs) |
| JP (1) | JP2688246B2 (cs) |
| KR (1) | KR920000443B1 (cs) |
| CN (1) | CN1023216C (cs) |
| AT (1) | ATE84776T1 (cs) |
| BR (1) | BR8901880A (cs) |
| CA (1) | CA1327212C (cs) |
| CS (1) | CS277195B6 (cs) |
| DE (1) | DE68904466T2 (cs) |
| ES (1) | ES2038819T3 (cs) |
| GE (1) | GEP19960308B (cs) |
| MX (1) | MX169563B (cs) |
| NL (1) | NL8801036A (cs) |
| RU (1) | RU1833359C (cs) |
| SG (1) | SG25293G (cs) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218704A (en) * | 1989-10-30 | 1993-06-08 | Texas Instruments | Real-time power conservation for portable computers |
| DE4029485A1 (de) * | 1990-09-18 | 1992-03-19 | Basf Ag | Verfahren zur abtrennung von cyclohexen aus gemischen mit benzol und cyclohexan |
| CN1073077C (zh) * | 1997-07-31 | 2001-10-17 | 巴陵石油化工公司鹰山石油化工厂 | 环己醇脱氢方法的改进 |
| EP1028109A1 (en) * | 1999-02-12 | 2000-08-16 | Dsm N.V. | Process for the preparation of epsilon-caprolactam |
| JP4601805B2 (ja) * | 2000-11-24 | 2010-12-22 | ダイセル化学工業株式会社 | シクロヘキサンの酸化方法 |
| DE10209701A1 (de) * | 2002-03-06 | 2003-09-18 | Basf Ag | Verfahren zur Herstellung von Cyclohexanol aus Benzol |
| RU2205175C1 (ru) * | 2002-03-20 | 2003-05-27 | Институт катализа им. Г.К. Борескова СО РАН | Способ получения циклогексанона |
| RU2205819C1 (ru) * | 2002-03-20 | 2003-06-10 | Институт катализа им. Г.К.Борескова СО РАН | Способ получения циклогексанона из бензола |
| WO2006046852A1 (en) * | 2004-10-27 | 2006-05-04 | Dsm Ip Assets B.V. | Process for the preparation of cyclohexanol and cyclohexanone |
| TWI612031B (zh) | 2012-09-18 | 2018-01-21 | China Petrochemical Technology Co Ltd | 一種聯產環己醇和鏈烷醇的方法和裝置 |
| CN103265418A (zh) * | 2013-06-08 | 2013-08-28 | 南京德力菲技术咨询有限公司 | 一种水合环己烯法环己醇制己内酰胺原料环己酮的方法 |
| CN110872208B (zh) * | 2019-02-18 | 2023-10-27 | 南京匹亚化工有限公司 | 一种耦合环己烷混合物脱氢技术的环己醇制备方法 |
| CN111217684A (zh) * | 2019-10-29 | 2020-06-02 | 山西潞宝兴海新材料有限公司 | 一种提高环己酮收率的生产方法 |
| CN115838316A (zh) * | 2021-09-18 | 2023-03-24 | 中国石油化工股份有限公司 | 一种苯二步加氢生产环己酮方法 |
| CN115838325A (zh) * | 2021-09-18 | 2023-03-24 | 中国石油化工股份有限公司 | 一种环己烯与环己烷耦合制环己酮的方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7905781A (nl) * | 1979-07-26 | 1981-01-28 | Stamicarbon | Werkwijze voor het bereiden van cyclohexanol. |
| NL8006602A (nl) * | 1980-12-04 | 1982-07-01 | Stamicarbon | Werkwijze voor het bereiden van cyclohexanol en/of cyclohexanon. |
| DE3203286A1 (de) * | 1981-03-20 | 1982-12-09 | The Agency of Industrial Science and Technology, Tokyo | Verfahren zur herstellung von zyklohexanon |
| JPS59193836A (ja) * | 1983-04-15 | 1984-11-02 | Asahi Chem Ind Co Ltd | アルコ−ル類の製造法 |
| US4507512A (en) * | 1983-05-31 | 1985-03-26 | Toa Nenryo Kogyo Kabushiki Kaisha | Process for hydration of olefins |
| JPS60104028A (ja) * | 1983-11-09 | 1985-06-08 | Asahi Chem Ind Co Ltd | 環状アルコ−ルの製造法 |
-
1988
- 1988-04-21 NL NL8801036A patent/NL8801036A/nl not_active Application Discontinuation
-
1989
- 1989-04-06 US US07/334,142 patent/US4927974A/en not_active Expired - Fee Related
- 1989-04-13 RU SU894613851A patent/RU1833359C/ru active
- 1989-04-17 AT AT89200970T patent/ATE84776T1/de not_active IP Right Cessation
- 1989-04-17 DE DE8989200970T patent/DE68904466T2/de not_active Expired - Fee Related
- 1989-04-17 ES ES198989200970T patent/ES2038819T3/es not_active Expired - Lifetime
- 1989-04-17 EP EP89200970A patent/EP0340827B1/en not_active Expired - Lifetime
- 1989-04-19 CA CA000597103A patent/CA1327212C/en not_active Expired - Fee Related
- 1989-04-19 KR KR1019890005239A patent/KR920000443B1/ko not_active Expired
- 1989-04-19 CN CN89102604A patent/CN1023216C/zh not_active Expired - Fee Related
- 1989-04-20 BR BR898901880A patent/BR8901880A/pt not_active IP Right Cessation
- 1989-04-20 CS CS892478A patent/CS277195B6/cs not_active IP Right Cessation
- 1989-04-20 MX MX015740A patent/MX169563B/es unknown
- 1989-04-21 JP JP1100347A patent/JP2688246B2/ja not_active Expired - Lifetime
-
1993
- 1993-03-06 SG SG252/93A patent/SG25293G/en unknown
- 1993-06-21 GE GEAP1993907A patent/GEP19960308B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0340827B1 (en) | 1993-01-20 |
| US4927974A (en) | 1990-05-22 |
| CN1038273A (zh) | 1989-12-27 |
| JP2688246B2 (ja) | 1997-12-08 |
| CS8902478A2 (en) | 1991-07-16 |
| KR890015984A (ko) | 1989-11-27 |
| RU1833359C (en) | 1993-08-07 |
| ES2038819T3 (es) | 1993-08-01 |
| CA1327212C (en) | 1994-02-22 |
| JPH01316330A (ja) | 1989-12-21 |
| GEP19960308B (en) | 1996-02-20 |
| CN1023216C (zh) | 1993-12-22 |
| CS277195B6 (en) | 1992-12-16 |
| SG25293G (en) | 1993-05-21 |
| DE68904466D1 (de) | 1993-03-04 |
| ATE84776T1 (de) | 1993-02-15 |
| DE68904466T2 (de) | 1993-08-19 |
| BR8901880A (pt) | 1989-11-28 |
| EP0340827A1 (en) | 1989-11-08 |
| MX169563B (es) | 1993-07-12 |
| KR920000443B1 (ko) | 1992-01-14 |
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