UA44214C2 - Спосіб одержання циклогексилгідропероксиду, спосіб окиснення циклогексану без каталізатора - Google Patents
Спосіб одержання циклогексилгідропероксиду, спосіб окиснення циклогексану без каталізатора Download PDFInfo
- Publication number
- UA44214C2 UA44214C2 UA93002267A UA93002267A UA44214C2 UA 44214 C2 UA44214 C2 UA 44214C2 UA 93002267 A UA93002267 A UA 93002267A UA 93002267 A UA93002267 A UA 93002267A UA 44214 C2 UA44214 C2 UA 44214C2
- Authority
- UA
- Ukraine
- Prior art keywords
- cyclohexane
- oxidation
- fact
- reactor
- cyclohexanone
- Prior art date
Links
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 109
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 59
- FGGJBCRKSVGDPO-UHFFFAOYSA-N hydroperoxycyclohexane Chemical compound OOC1CCCCC1 FGGJBCRKSVGDPO-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003054 catalyst Substances 0.000 title claims abstract description 13
- 230000003647 oxidation Effects 0.000 title claims description 92
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 125000006165 cyclic alkyl group Chemical group 0.000 claims abstract description 9
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 40
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 10
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 8
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 claims description 8
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- -1 b-hydroxyhexanal Chemical compound 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- PFURGBBHAOXLIO-UHFFFAOYSA-N cyclohexane-1,2-diol Chemical compound OC1CCCCC1O PFURGBBHAOXLIO-UHFFFAOYSA-N 0.000 claims description 3
- XCIXKGXIYUWCLL-UHFFFAOYSA-N cyclopentanol Chemical compound OC1CCCC1 XCIXKGXIYUWCLL-UHFFFAOYSA-N 0.000 claims description 3
- ZWAJLVLEBYIOTI-OLQVQODUSA-N (1s,6r)-7-oxabicyclo[4.1.0]heptane Chemical compound C1CCC[C@@H]2O[C@@H]21 ZWAJLVLEBYIOTI-OLQVQODUSA-N 0.000 claims description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- UALYCKSVHDYQRP-UHFFFAOYSA-N 6-hydroxyhexan-2-one Chemical compound CC(=O)CCCCO UALYCKSVHDYQRP-UHFFFAOYSA-N 0.000 claims 1
- 239000000047 product Substances 0.000 description 28
- 239000002253 acid Substances 0.000 description 14
- 230000003197 catalytic effect Effects 0.000 description 11
- 150000007513 acids Chemical class 0.000 description 10
- 239000011541 reaction mixture Substances 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 8
- JARKCYVAAOWBJS-UHFFFAOYSA-N hexanal Chemical compound CCCCCC=O JARKCYVAAOWBJS-UHFFFAOYSA-N 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- BWLXFRDLOOTGBQ-UHFFFAOYSA-N [S].C1CCCCC1 Chemical compound [S].C1CCCCC1 BWLXFRDLOOTGBQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000001924 cycloalkanes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- RCCPEORTSYDPMB-UHFFFAOYSA-N hydroxy benzenecarboximidothioate Chemical compound OSC(=N)C1=CC=CC=C1 RCCPEORTSYDPMB-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003509 tertiary alcohols Chemical class 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 102100039788 GTPase NRas Human genes 0.000 description 1
- 101000744505 Homo sapiens GTPase NRas Proteins 0.000 description 1
- RSPISYXLHRIGJD-UHFFFAOYSA-N OOOO Chemical compound OOOO RSPISYXLHRIGJD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- FYLJKQFMQFOLSZ-UHFFFAOYSA-N cyclohexylperoxycyclohexane Chemical compound C1CCCCC1OOC1CCCCC1 FYLJKQFMQFOLSZ-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 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
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C407/00—Preparation of peroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C409/00—Peroxy compounds
- C07C409/02—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides
- C07C409/14—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides the carbon atom belonging to a ring other than a six-membered aromatic ring
-
- 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
-
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Steroid Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Epoxy Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9201269A NL9201269A (nl) | 1992-07-15 | 1992-07-15 | Werkwijze voor de bereiding van cyclohexylhydroperoxide. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA44214C2 true UA44214C2 (uk) | 2002-02-15 |
Family
ID=19861062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UA93002267A UA44214C2 (uk) | 1992-07-15 | 1993-07-08 | Спосіб одержання циклогексилгідропероксиду, спосіб окиснення циклогексану без каталізатора |
Country Status (20)
| Country | Link |
|---|---|
| EP (1) | EP0579323B1 (show.php) |
| JP (1) | JP3599758B2 (show.php) |
| KR (1) | KR100278129B1 (show.php) |
| CN (1) | CN1051763C (show.php) |
| AT (1) | ATE143358T1 (show.php) |
| BR (1) | BR9302860A (show.php) |
| CZ (1) | CZ288373B6 (show.php) |
| DE (1) | DE69305015T2 (show.php) |
| ES (1) | ES2093914T3 (show.php) |
| GE (1) | GEP19971110B (show.php) |
| HU (1) | HU218302B (show.php) |
| MX (1) | MX9304248A (show.php) |
| MY (1) | MY108925A (show.php) |
| NL (1) | NL9201269A (show.php) |
| PL (1) | PL178142B1 (show.php) |
| RU (1) | RU2121996C1 (show.php) |
| SG (1) | SG49325A1 (show.php) |
| SK (1) | SK281678B6 (show.php) |
| TW (1) | TW321635B (show.php) |
| UA (1) | UA44214C2 (show.php) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4658199A (en) * | 1998-06-26 | 2000-01-17 | Dsm N.V. | Diesel mixture containing cycloalkylhydroperoxide |
| 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 |
| US7091365B2 (en) | 2004-03-08 | 2006-08-15 | Abb Lummus Global Inc. | Process for olefin epoxidation and co-production of nylon precursor |
| CN101048358B (zh) * | 2004-10-27 | 2010-05-05 | 帝斯曼知识产权资产管理有限公司 | 制备环己醇和环己酮的工艺 |
| FR2878847B1 (fr) * | 2004-12-07 | 2007-01-05 | Rhodia Chimie Sa | Procede de preparation de cyclohexanone |
| WO2006066904A1 (en) * | 2004-12-22 | 2006-06-29 | Dsm Ip Assets B.V. | Process for decomposing cyclohexylhdroperoxide |
| JP5160048B2 (ja) * | 2006-05-15 | 2013-03-13 | 旭化成ケミカルズ株式会社 | アリルアルコール類の製造方法 |
| CN101417968B (zh) * | 2007-10-26 | 2013-09-11 | 环球油品公司 | 一种氢过氧化物的制备方法 |
| FR2954314B1 (fr) * | 2009-12-17 | 2012-01-27 | Rhodia Operations | Procede d'oxydation d'hydrocarbures par l'oxygene |
| WO2013083513A1 (en) | 2011-12-07 | 2013-06-13 | Dsm Ip Assets B.V. | Process for the production of a mixture comprising cyclohexanol and cyclohexanone |
| CN103987452B (zh) | 2011-12-07 | 2016-02-24 | Capiii有限公司 | 包含环己醇和环己酮的混合物的制备方法 |
| RU2673541C1 (ru) * | 2017-10-13 | 2018-11-28 | Открытое акционерное общество "Щекиноазот" | Способ получения циклогексанона, циклогексанола и циклогексилгидропероксида, установка для его осуществления и устройство абсорбции реакционных газов и предварительного окисления циклогексана |
| RU2747484C1 (ru) * | 2020-10-27 | 2021-05-05 | Публичное акционерное общество "КуйбышевАзот" | Способ получения гидропероксида циклогексила |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH467230A (de) * | 1964-03-03 | 1969-01-15 | Wallace & Tiernan Inc | Verfahren zur Herstellung von Alkandicarbonsäuren aus Cycloalkanen |
| FR1506296A (fr) * | 1966-03-11 | 1967-12-22 | Charbonnages De France | Procédé d'oxydation en continu de composés organiques |
| NL7802125A (nl) * | 1978-02-25 | 1979-08-28 | Stamicarbon | Werkwijze voor het bereiden van cycloalkanolen en cycloalkanonen. |
| US5043481A (en) * | 1990-09-28 | 1991-08-27 | Arco Chemical Technology, Inc. | Cyclohexane oxidation |
-
1992
- 1992-07-15 NL NL9201269A patent/NL9201269A/nl not_active Application Discontinuation
-
1993
- 1993-07-06 TW TW082105378A patent/TW321635B/zh not_active IP Right Cessation
- 1993-07-08 UA UA93002267A patent/UA44214C2/uk unknown
- 1993-07-09 AT AT93202018T patent/ATE143358T1/de not_active IP Right Cessation
- 1993-07-09 ES ES93202018T patent/ES2093914T3/es not_active Expired - Lifetime
- 1993-07-09 SG SG1996009377A patent/SG49325A1/en unknown
- 1993-07-09 EP EP93202018A patent/EP0579323B1/en not_active Expired - Lifetime
- 1993-07-09 DE DE69305015T patent/DE69305015T2/de not_active Expired - Lifetime
- 1993-07-14 MY MYPI93001374A patent/MY108925A/en unknown
- 1993-07-14 BR BR9302860A patent/BR9302860A/pt not_active IP Right Cessation
- 1993-07-14 HU HU9302021A patent/HU218302B/hu not_active IP Right Cessation
- 1993-07-14 SK SK743-93A patent/SK281678B6/sk not_active IP Right Cessation
- 1993-07-14 JP JP17425193A patent/JP3599758B2/ja not_active Expired - Lifetime
- 1993-07-14 CN CN93116485A patent/CN1051763C/zh not_active Expired - Lifetime
- 1993-07-14 PL PL93299671A patent/PL178142B1/pl unknown
- 1993-07-14 RU RU93049735A patent/RU2121996C1/ru active
- 1993-07-14 MX MX9304248A patent/MX9304248A/es unknown
- 1993-07-15 GE GEAP19931034A patent/GEP19971110B/en unknown
- 1993-07-15 CZ CZ19931414A patent/CZ288373B6/cs not_active IP Right Cessation
- 1993-07-15 KR KR1019930013550A patent/KR100278129B1/ko not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69305015T2 (de) | 1997-04-10 |
| RU2121996C1 (ru) | 1998-11-20 |
| JPH06157456A (ja) | 1994-06-03 |
| HU218302B (en) | 2000-07-28 |
| CZ141493A3 (en) | 1994-02-16 |
| CN1051763C (zh) | 2000-04-26 |
| KR940005537A (ko) | 1994-03-21 |
| EP0579323A1 (en) | 1994-01-19 |
| CZ288373B6 (en) | 2001-06-13 |
| PL178142B1 (pl) | 2000-03-31 |
| BR9302860A (pt) | 1994-03-01 |
| JP3599758B2 (ja) | 2004-12-08 |
| SG49325A1 (en) | 1998-05-18 |
| MY108925A (en) | 1996-11-30 |
| EP0579323B1 (en) | 1996-09-25 |
| HUT64515A (en) | 1994-01-28 |
| CN1087627A (zh) | 1994-06-08 |
| SK281678B6 (sk) | 2001-06-11 |
| SK74393A3 (en) | 1994-06-08 |
| ES2093914T3 (es) | 1997-01-01 |
| GEP19971110B (en) | 1997-10-10 |
| NL9201269A (nl) | 1994-02-01 |
| ATE143358T1 (de) | 1996-10-15 |
| DE69305015D1 (de) | 1996-10-31 |
| PL299671A1 (en) | 1994-02-21 |
| TW321635B (show.php) | 1997-12-01 |
| MX9304248A (es) | 1994-02-28 |
| HU9302021D0 (en) | 1993-11-29 |
| KR100278129B1 (ko) | 2001-02-01 |
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