DD292144A5 - Verfahren zur trennung und rueckgewinnung von komponenten von gemischen mittels pervaporation - Google Patents
Verfahren zur trennung und rueckgewinnung von komponenten von gemischen mittels pervaporation Download PDFInfo
- Publication number
- DD292144A5 DD292144A5 DD90338105A DD33810590A DD292144A5 DD 292144 A5 DD292144 A5 DD 292144A5 DD 90338105 A DD90338105 A DD 90338105A DD 33810590 A DD33810590 A DD 33810590A DD 292144 A5 DD292144 A5 DD 292144A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- water
- mixture
- phase
- pervaporation
- separated
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 101
- 239000000203 mixture Substances 0.000 title claims abstract description 55
- 238000005373 pervaporation Methods 0.000 title claims abstract description 42
- 238000000926 separation method Methods 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000012071 phase Substances 0.000 claims abstract description 39
- 239000012466 permeate Substances 0.000 claims abstract description 33
- 239000012074 organic phase Substances 0.000 claims abstract description 30
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 29
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 7
- 238000005137 deposition process Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000012465 retentate Substances 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims 1
- 239000007790 solid phase Substances 0.000 claims 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 15
- 239000000126 substance Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 238000004821 distillation Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- -1 Polyethylene Polymers 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 150000008282 halocarbons Chemical class 0.000 description 4
- 150000002576 ketones Chemical class 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 description 2
- 229920002614 Polyether block amide Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XESZUVZBAMCAEJ-UHFFFAOYSA-N 4-tert-butylcatechol Chemical compound CC(C)(C)C1=CC=C(O)C(O)=C1 XESZUVZBAMCAEJ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010237 hybrid technique Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
- B01D61/3621—Pervaporation comprising multiple pervaporation steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/048—Breaking emulsions by changing the state of aggregation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/10—Organic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/16—Vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/27—Micropores
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/09—Plural feed
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3905924A DE3905924C2 (de) | 1989-02-25 | 1989-02-25 | Verfahren zur Trennung und Rückgewinnung von Komponenten von Gemischen mittels Pervaporation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD292144A5 true DD292144A5 (de) | 1991-07-25 |
Family
ID=6374939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD90338105A DD292144A5 (de) | 1989-02-25 | 1990-02-23 | Verfahren zur trennung und rueckgewinnung von komponenten von gemischen mittels pervaporation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5108549A (fr) |
| EP (1) | EP0385119B1 (fr) |
| JP (1) | JPH02298319A (fr) |
| DD (1) | DD292144A5 (fr) |
| DE (2) | DE3905924C2 (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5169533A (en) * | 1989-05-31 | 1992-12-08 | Membrane Technology And Research, Inc. | Process for recovering organic components from liquid streams |
| DE4130661C1 (fr) * | 1991-09-14 | 1993-05-19 | Dornier Gmbh, 7990 Friedrichshafen, De | |
| US5417847A (en) * | 1991-12-23 | 1995-05-23 | Membrane Technology And Research, Inc. | Pervaporation apparatus and process |
| DE4320629C2 (de) * | 1992-06-24 | 1996-03-07 | Byk Gulden Lomberg Chem Fab | Verfahren und Vorrichtung zur Rückgewinnung von Lösungsmitteln aus Abluft |
| US5350519A (en) * | 1993-07-19 | 1994-09-27 | Membrane Technology And Research, Inc. | Pervaporation process and use in treating waste stream from glycol dehydrator |
| DE19508296A1 (de) * | 1995-03-09 | 1996-09-12 | Hydac Filtertechnik Gmbh | Verfahren und Vorrichtung zur Phasenseparation |
| US5843212A (en) * | 1995-05-12 | 1998-12-01 | Gilbarco Inc. | Fuel tank ullage pressure reduction |
| US5571310A (en) * | 1995-05-12 | 1996-11-05 | Gilbarco Inc. | Volatile organic chemical tank ullage pressure reduction |
| EP0825894A4 (fr) * | 1995-05-15 | 1999-01-20 | Athens Corp | Deshydratation et purification de l'isopropanol |
| FR2773496B1 (fr) * | 1998-01-14 | 2000-03-03 | Inst Francais Du Petrole | Procede de separation par decantation dans plusieurs zones distinctes |
| US6478953B2 (en) * | 2000-11-30 | 2002-11-12 | Porous Media Corporation | Oil filter and dehydrator |
| DE10146717A1 (de) * | 2001-09-21 | 2003-04-17 | Solvay Fluor & Derivate | Entwässerung fluorierter organischer Verbindungen |
| US7018539B2 (en) * | 2002-10-24 | 2006-03-28 | Membrane Technology And Research, Inc. | Treatment of shipboard-generated oily wastewaters |
| DE102004042583A1 (de) * | 2004-09-02 | 2006-03-23 | Honeywell Specialty Chemicals Seelze Gmbh | Herstellung von wasserfreien organischen Lösungsmitteln mittels eines Pervaporationsverfahrens |
| US7837877B2 (en) * | 2006-06-09 | 2010-11-23 | Air Products And Chemicals, Inc. | Process for separating components of a multi-component feed stream |
| JP4929269B2 (ja) * | 2008-11-13 | 2012-05-09 | 三菱重工業株式会社 | 膜容器 |
| CN102722159A (zh) * | 2012-05-24 | 2012-10-10 | 沈国华 | 无动力环保型智能餐废油回收监控系统 |
| US10618008B2 (en) | 2015-07-01 | 2020-04-14 | 3M Innovative Properties Company | Polymeric ionomer separation membranes and methods of use |
| JP2018522718A (ja) | 2015-07-01 | 2018-08-16 | スリーエム イノベイティブ プロパティズ カンパニー | Ｐｖｐ含有かつ／又はｐｖｌ含有複合膜並びに使用方法 |
| JP6838819B2 (ja) | 2015-07-01 | 2021-03-03 | スリーエム イノベイティブ プロパティズ カンパニー | 向上した性能及び／又は耐久性を有する複合膜並びに使用方法 |
| US20170008778A1 (en) * | 2015-07-08 | 2017-01-12 | King Abdulaziz University | Freezing desalination module |
| CN105427572A (zh) * | 2016-01-08 | 2016-03-23 | 搜油郎成都科技有限公司 | 一种潲水油监控系统及其监控方法 |
| CN108654142A (zh) * | 2018-07-31 | 2018-10-16 | 宁波爱德康生物科技有限公司 | 一种富血小板血浆分离装置及其分离方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923650A (en) * | 1974-04-01 | 1975-12-02 | Lilly Co Eli | Process for reducing the biological and chemical oxygen demand of spent antibiotic fermentation broth |
| US4311594A (en) * | 1975-12-01 | 1982-01-19 | Monsanto Company | Membrane separation of organics from aqueous solutions |
| DE3037736C2 (de) * | 1980-10-06 | 1984-01-26 | Achim Dipl.-Ing. 6650 Homburg Ballweg | Verfahren zur Entwässerung von Gemischen aus organischen Flüssigkeiten und Wasser |
| EP0143129A1 (fr) * | 1983-12-01 | 1985-06-05 | Exxon Research And Engineering Company | Procédé de séparation d'un mélange par décantation et perméation à travers une membrane |
| DE3447615A1 (de) * | 1983-12-29 | 1985-07-11 | Basf Ag, 6700 Ludwigshafen | Verfahren zur entwaesserung eines propanol/butanol-gemisches durch destillation |
| AR242427A1 (es) * | 1984-03-12 | 1993-03-31 | Exxon Research Engineering Co | Procedimiento de desparafinacion |
| GB8419174D0 (en) * | 1984-07-27 | 1984-08-30 | British Petroleum Co Plc | Separation of water from organic liquids |
| DE3531834C1 (de) * | 1985-09-06 | 1986-09-18 | Starcosa Gmbh, 3300 Braunschweig | Pervaporationsverfahren |
| DE3610011A1 (de) * | 1986-03-25 | 1987-10-08 | Geesthacht Gkss Forschung | Verfahren zur trennung der komponenten eines fluessigkeitsgemisches voneinander |
| JPS6362504A (ja) * | 1986-09-02 | 1988-03-18 | Mitsubishi Rayon Eng Co Ltd | 有機成分含有水溶液中の有機成分の濃縮方法 |
| US4806245A (en) * | 1986-10-14 | 1989-02-21 | Bend Research, Inc. | Pervaporation of phenols |
| CA1312550C (fr) * | 1986-10-14 | 1993-01-12 | Karl W. Boddeker | Pervaporation de phenols |
| DE3723193A1 (de) * | 1987-07-14 | 1989-01-26 | Metallgesellschaft Ag | Verfahren zur herstellung von alkoholaten |
| JPH01207101A (ja) * | 1988-02-15 | 1989-08-21 | Agency Of Ind Science & Technol | 濃縮液体の製造方法およびその装置 |
| US4898674A (en) * | 1988-03-24 | 1990-02-06 | Texaco Inc. | Solvent dewaxing process |
-
1989
- 1989-02-25 DE DE3905924A patent/DE3905924C2/de not_active Expired - Fee Related
-
1990
- 1990-01-31 EP EP90101879A patent/EP0385119B1/fr not_active Expired - Lifetime
- 1990-01-31 DE DE59006656T patent/DE59006656D1/de not_active Expired - Fee Related
- 1990-02-23 JP JP2041398A patent/JPH02298319A/ja active Pending
- 1990-02-23 US US07/484,076 patent/US5108549A/en not_active Expired - Fee Related
- 1990-02-23 DD DD90338105A patent/DD292144A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0385119A3 (fr) | 1992-07-22 |
| US5108549A (en) | 1992-04-28 |
| DE3905924C2 (de) | 1997-11-20 |
| DE3905924A1 (de) | 1990-09-06 |
| DE59006656D1 (de) | 1994-09-08 |
| JPH02298319A (ja) | 1990-12-10 |
| EP0385119B1 (fr) | 1994-08-03 |
| EP0385119A2 (fr) | 1990-09-05 |
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