ZA200007750B - Method for extracting xenon. - Google Patents
Method for extracting xenon. Download PDFInfo
- Publication number
- ZA200007750B ZA200007750B ZA200007750A ZA200007750A ZA200007750B ZA 200007750 B ZA200007750 B ZA 200007750B ZA 200007750 A ZA200007750 A ZA 200007750A ZA 200007750 A ZA200007750 A ZA 200007750A ZA 200007750 B ZA200007750 B ZA 200007750B
- Authority
- ZA
- South Africa
- Prior art keywords
- column
- process according
- fed
- inert gas
- afp
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910052724 xenon Inorganic materials 0.000 title claims abstract description 19
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 title claims abstract description 13
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000011261 inert gas Substances 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052743 krypton Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 11
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 238000005194 fractionation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 230000000274 adsorptive effect Effects 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04745—Krypton and/or Xenon
- F25J3/04751—Producing pure krypton and/or xenon recovered from a crude krypton/xenon mixture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/028—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04745—Krypton and/or Xenon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/32—Processes or apparatus using separation by rectification using a side column fed by a stream from the high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/34—Processes or apparatus using separation by rectification using a side column fed by a stream from the low pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/42—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/50—Oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/34—Krypton
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/36—Xenon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
-
- 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
- Y10S62/00—Refrigeration
- Y10S62/923—Inert gas
- Y10S62/925—Xenon or krypton
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Medicines Containing Plant Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823526A DE19823526C1 (de) | 1998-05-26 | 1998-05-26 | Verfahren zur Xenongewinnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200007750B true ZA200007750B (en) | 2001-11-12 |
Family
ID=7868981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200007750A ZA200007750B (en) | 1998-05-26 | 2000-12-21 | Method for extracting xenon. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6351970B1 (de) |
| EP (1) | EP1082577B1 (de) |
| CN (1) | CN1136427C (de) |
| AT (1) | ATE215211T1 (de) |
| DE (2) | DE19823526C1 (de) |
| NO (1) | NO20005955D0 (de) |
| PL (1) | PL344242A1 (de) |
| SI (1) | SI20486A (de) |
| TW (1) | TW453975B (de) |
| WO (1) | WO1999061853A1 (de) |
| ZA (1) | ZA200007750B (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6735980B2 (en) * | 2002-01-04 | 2004-05-18 | Air Products And Chemicals, Inc. | Recovery of krypton and xenon |
| RU2213609C1 (ru) * | 2002-11-15 | 2003-10-10 | Савинов Михаил Юрьевич | Способ разделения криптоно-ксенонового концентрата и устройство для его осуществления |
| RU2242267C1 (ru) * | 2003-11-17 | 2004-12-20 | Савинов Михаил Юрьевич | Способ очистки и разделения многокомпонентной смеси и устройство для его осуществления |
| US8123606B2 (en) * | 2004-07-30 | 2012-02-28 | Igt | Stud bingo |
| WO2006068531A1 (en) * | 2004-12-17 | 2006-06-29 | Mikhail Yurievich Savinov | Method treating and dividing a multi-component mixture and device for carrying out said method |
| RU2295679C1 (ru) * | 2005-08-05 | 2007-03-20 | Михаил Юрьевич Савинов | Способ управления ректификационной установкой |
| RU2300717C1 (ru) * | 2005-12-29 | 2007-06-10 | Михаил Юрьевич Савинов | Способ очистки и разделения криптоно-ксеноновой смеси ректификацией и устройство для его осуществления |
| RU2412744C2 (ru) * | 2007-11-29 | 2011-02-27 | Михаил Юрьевич Савинов | Способ утилизации потерь целевых компонентов с получением чистых целевых компонентов и устройство для его осуществления |
| DE102009014556A1 (de) | 2009-03-24 | 2010-09-30 | Linde Aktiengesellschaft | Verfahren zur Beheizung einer Trennkolonne |
| CN101634514B (zh) * | 2009-08-13 | 2012-01-25 | 上海启元科技发展有限公司 | 全精馏制备纯氪和纯氙的方法 |
| CN101634515B (zh) * | 2009-08-13 | 2012-09-05 | 上海启元科技发展有限公司 | 一种纯氪和纯氙的全精馏提取方法 |
| EP2312248A1 (de) | 2009-10-07 | 2011-04-20 | Linde Aktiengesellschaft | Verfahren und Vorrichtung Gewinnung von Drucksauerstoff und Krypton/Xenon |
| CN101723338B (zh) * | 2009-11-12 | 2013-03-13 | 上海启元科技发展有限公司 | 一种从液氧中提取氪氙的方法 |
| CN101898752B (zh) * | 2009-11-12 | 2012-07-04 | 上海启元科技发展有限公司 | 一种从浓氪氙液中精制纯氪和纯氙的方法 |
| EP2390603A1 (de) * | 2010-05-27 | 2011-11-30 | Linde AG | Verfahren und Vorrichtung zur Trennung eines Stoffgemischs durch Destillation |
| US8978413B2 (en) * | 2010-06-09 | 2015-03-17 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Rare gases recovery process for triple column oxygen plant |
| FR2971332B1 (fr) * | 2011-02-09 | 2017-06-16 | Air Liquide | Procede et appareil de separation cryogenique d'un debit riche en methane |
| CN102538393A (zh) * | 2011-07-26 | 2012-07-04 | 上海启元空分技术发展股份有限公司 | 含co2和甲烷的氪氙浓缩物的分离方法 |
| DE102011111630A1 (de) * | 2011-08-25 | 2013-02-28 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Tieftemperatur-Zerlegung eines Fluidgemischs |
| RU2520216C1 (ru) * | 2012-12-21 | 2014-06-20 | Михаил Юрьевич Савинов | Способ получения из многокомпонентного раствора криптоноксеноновой смеси и растворителя особой чистоты и устройство его осуществления |
| CN108031138A (zh) * | 2017-12-14 | 2018-05-15 | 浙江新锐空分设备有限公司 | 一种氪氙浓缩塔底部蒸发热源系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1667639A1 (de) | 1968-03-15 | 1971-07-08 | Messer Griesheim Gmbh | Verfahren zum Gewinnen eines Krypton-Xenon-Gemisches aus Luft |
| DE2055099A1 (de) * | 1970-11-10 | 1972-05-18 | Messer Griesheim Gmbh, 6000 Frankfurt | Verfahren zur Anreicherung von Krypton und Xenon in Luftzerlegungsanlagen |
| FR2280954B1 (fr) | 1974-07-31 | 1977-01-07 | Commissariat Energie Atomique | Procede de traitement de melanges d'air et de gaz rares au moins partiellement radio-actifs |
| US4401448A (en) * | 1982-05-24 | 1983-08-30 | Union Carbide Corporation | Air separation process for the production of krypton and xenon |
| US4647299A (en) * | 1984-08-16 | 1987-03-03 | Union Carbide Corporation | Process to produce an oxygen-free krypton-xenon concentrate |
| US5067976A (en) * | 1991-02-05 | 1991-11-26 | Air Products And Chemicals, Inc. | Cryogenic process for the production of an oxygen-free and methane-free, krypton/xenon product |
-
1998
- 1998-05-26 DE DE19823526A patent/DE19823526C1/de not_active Expired - Fee Related
-
1999
- 1999-05-05 AT AT99922180T patent/ATE215211T1/de not_active IP Right Cessation
- 1999-05-05 CN CNB998065668A patent/CN1136427C/zh not_active Expired - Fee Related
- 1999-05-05 WO PCT/EP1999/003079 patent/WO1999061853A1/de not_active Ceased
- 1999-05-05 PL PL99344242A patent/PL344242A1/xx unknown
- 1999-05-05 DE DE59901070T patent/DE59901070D1/de not_active Expired - Fee Related
- 1999-05-05 EP EP99922180A patent/EP1082577B1/de not_active Expired - Lifetime
- 1999-05-05 US US09/701,240 patent/US6351970B1/en not_active Expired - Fee Related
- 1999-05-05 SI SI9920039A patent/SI20486A/sl unknown
- 1999-05-25 TW TW088108541A patent/TW453975B/zh not_active IP Right Cessation
-
2000
- 2000-11-24 NO NO20005955A patent/NO20005955D0/no not_active Application Discontinuation
- 2000-12-21 ZA ZA200007750A patent/ZA200007750B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO20005955L (no) | 2000-11-24 |
| TW453975B (en) | 2001-09-11 |
| ATE215211T1 (de) | 2002-04-15 |
| EP1082577B1 (de) | 2002-03-27 |
| CN1136427C (zh) | 2004-01-28 |
| DE59901070D1 (de) | 2002-05-02 |
| NO20005955D0 (no) | 2000-11-24 |
| US6351970B1 (en) | 2002-03-05 |
| WO1999061853A1 (de) | 1999-12-02 |
| DE19823526C1 (de) | 2000-01-05 |
| EP1082577A1 (de) | 2001-03-14 |
| CN1305578A (zh) | 2001-07-25 |
| PL344242A1 (en) | 2001-10-08 |
| SI20486A (sl) | 2001-08-31 |
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