JPH08506051A - 排ガスを乾式浄化するための剤 - Google Patents
排ガスを乾式浄化するための剤Info
- Publication number
- JPH08506051A JPH08506051A JP6517637A JP51763794A JPH08506051A JP H08506051 A JPH08506051 A JP H08506051A JP 6517637 A JP6517637 A JP 6517637A JP 51763794 A JP51763794 A JP 51763794A JP H08506051 A JPH08506051 A JP H08506051A
- Authority
- JP
- Japan
- Prior art keywords
- component
- particle size
- coke
- inert
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 239000000571 coke Substances 0.000 claims abstract description 70
- 239000002245 particle Substances 0.000 claims abstract description 66
- 239000000126 substance Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 45
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003546 flue gas Substances 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 11
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 25
- 239000000920 calcium hydroxide Substances 0.000 claims description 24
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 235000019738 Limestone Nutrition 0.000 claims description 11
- 239000006028 limestone Substances 0.000 claims description 11
- 229940043430 calcium compound Drugs 0.000 claims description 10
- 150000001674 calcium compounds Chemical class 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 239000008267 milk Substances 0.000 claims description 2
- 235000013336 milk Nutrition 0.000 claims description 2
- 210000004080 milk Anatomy 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 30
- 229910052799 carbon Inorganic materials 0.000 abstract description 19
- 239000002360 explosive Substances 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 9
- 239000013543 active substance Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 150000002894 organic compounds Chemical class 0.000 description 5
- 239000011362 coarse particle Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 150000002013 dioxins Chemical class 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 150000002240 furans Chemical class 0.000 description 3
- 239000000383 hazardous chemical Substances 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 239000012629 purifying agent Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- UNMYWSMUMWPJLR-UHFFFAOYSA-L Calcium iodide Chemical compound [Ca+2].[I-].[I-] UNMYWSMUMWPJLR-UHFFFAOYSA-L 0.000 description 1
- 241000269821 Scombridae Species 0.000 description 1
- OMOVVBIIQSXZSZ-UHFFFAOYSA-N [6-(4-acetyloxy-5,9a-dimethyl-2,7-dioxo-4,5a,6,9-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl)-5-formyloxy-3-(furan-3-yl)-3a-methyl-7-methylidene-1a,2,3,4,5,6-hexahydroindeno[1,7a-b]oxiren-4-yl] 2-hydroxy-3-methylpentanoate Chemical compound CC12C(OC(=O)C(O)C(C)CC)C(OC=O)C(C3(C)C(CC(=O)OC4(C)COC(=O)CC43)OC(C)=O)C(=C)C32OC3CC1C=1C=COC=1 OMOVVBIIQSXZSZ-UHFFFAOYSA-N 0.000 description 1
- NJCQVAKYBOCUCS-UHFFFAOYSA-N [C].F Chemical class [C].F NJCQVAKYBOCUCS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 229940046413 calcium iodide Drugs 0.000 description 1
- 229910001640 calcium iodide Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 235000020640 mackerel Nutrition 0.000 description 1
- 231100000926 not very toxic Toxicity 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 排ガスを乾式吸着の原理に従って浄化するための、活性コークスと粉塵爆 発性のない不活性物質との混合物より成る微粉状剤において、上記混合物中にお いて少なくとも1種類の不活性物質成分がそれの粒度分布に関して活性コークス 成分の粒度分布に調和しており、その結果、静止ガス媒体中において不活性物質 成分のトップ粒子の沈降速度が活性コークス成分のトップ粒子の沈降速度に同じ かまたはより大きいことを特徴とする、上記微粉状剤。 2. 粒度の調和した少なくとも1種類の不活性物質成分の造粒ラインの勾配が 、活性コークス成分の造立ラインの勾配と同じかまたはより大きい請求項1に記 載の剤。 3. 粒度の調和した不活性物質成分が石灰石粉末である請求項1または2に記 載の剤。 4. 粒度の調和してない他の不活性物質成分が反応性のカルシウム化合物を含 有する請求項1〜3のいずれか一つに記載の剤。 5. 反応性カルシウム化合物が水酸化カルシウムである請求項4に記載の剤。 6. 請求項1〜5の何れか一つに記載の剤を別々に稼働するかまたは前にまた は後に連結された吸着段階を含む煙道ガス浄化装置においてガス流浄化の原理に 従って用いる方法。 7. 請求項1〜5のいずれか一つに記載の剤を用いる方法において、石灰乳懸 濁物として洗浄吸着装置で用いる、上記方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4303450.0 | 1993-02-05 | ||
| DE4303450A DE4303450C2 (de) | 1993-02-05 | 1993-02-05 | Mittel zur trockenen Reinigung von Abgasen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08506051A true JPH08506051A (ja) | 1996-07-02 |
| JP2822351B2 JP2822351B2 (ja) | 1998-11-11 |
Family
ID=6479780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6517637A Expired - Lifetime JP2822351B2 (ja) | 1993-02-05 | 1994-02-04 | 排ガスを乾式浄化するための剤 |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US6074620A (ja) |
| EP (1) | EP0682558B1 (ja) |
| JP (1) | JP2822351B2 (ja) |
| KR (1) | KR100297416B1 (ja) |
| AT (1) | ATE154254T1 (ja) |
| CA (1) | CA2155440A1 (ja) |
| CZ (1) | CZ289653B6 (ja) |
| DE (2) | DE4303450C2 (ja) |
| DK (1) | DK0682558T3 (ja) |
| ES (1) | ES2104351T3 (ja) |
| FI (1) | FI113247B (ja) |
| GR (1) | GR3024656T3 (ja) |
| NO (1) | NO307246B1 (ja) |
| PL (1) | PL310110A1 (ja) |
| WO (1) | WO1994017900A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004524132A (ja) * | 2000-08-21 | 2004-08-12 | シーメンス アクチエンゲゼルシヤフト | 煙道ガス装置及び浄化剤の供給方法 |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4303450C2 (de) * | 1993-02-05 | 1997-07-03 | Rheinische Kalksteinwerke | Mittel zur trockenen Reinigung von Abgasen |
| DE19521808A1 (de) * | 1995-06-16 | 1996-12-19 | Rheinische Kalksteinwerke | Granulat auf Basis von Erdalkalikarbonaten mit ab- und adsorptiven Substanzen |
| DE19620129A1 (de) * | 1996-05-18 | 1997-11-20 | Metallgesellschaft Ag | Verfahren zum Abtrennen von Schadstoffen aus Abgasen |
| FR2758279B1 (fr) * | 1997-01-13 | 1999-02-26 | Pechiney Recherche | Support de catalyseur a base de carbure de silicium a surface specifique elevee sous forme de granule ayant des caracteristiques mecaniques ameliorees |
| DE19711840A1 (de) * | 1997-03-21 | 1998-10-01 | Petersen Hugo Verfahrenstech | Verfahren zur Entfernung von in niedriger Konzentration vorliegenden Schadstoffen, insbesondere chlorierten Kohlenwasserstoffen und ggf. Schwermetallen, aus Abgasen |
| CA2323980A1 (en) * | 2000-10-19 | 2002-04-19 | Rosaire Tremblay | Device for filtering air polluted with gases and odours |
| US6841513B2 (en) * | 2001-03-29 | 2005-01-11 | Merck & Co., Inc. | Adsorption powder containing cupric chloride |
| US7247285B2 (en) * | 2002-12-02 | 2007-07-24 | Bert Zauderer | Reduction of sulfur, nitrogen oxides and volatile trace metals from combustion in furnaces and boilers |
| US9688934B2 (en) * | 2007-11-23 | 2017-06-27 | Bixby Energy Systems, Inc. | Process for and processor of natural gas and activated carbon together with blower |
| CN104498098A (zh) | 2008-06-26 | 2015-04-08 | 谐和能源有限责任公司 | 用于取代烧煤工厂中的煤的工程燃料原料 |
| US8444721B2 (en) * | 2008-06-26 | 2013-05-21 | Re Community Energy, Llc | Engineered fuel feed stock |
| US20100018113A1 (en) * | 2008-06-26 | 2010-01-28 | Casella Waste Systems, Inc. | Engineered fuel feed stock |
| DE102009035714A1 (de) | 2009-07-31 | 2011-02-03 | Brewa Wte Gmbh | Verfahren zum Entfernen von Schadstoff aus Rauchgas sowie Verbrennungsanlage |
| MX2012007370A (es) | 2009-12-22 | 2012-10-05 | Re Community Energy Llc | Cargas de alimentación de combustible diseñadas que contienen adsorbente. |
| WO2013113026A2 (en) | 2012-01-26 | 2013-08-01 | Mph Energy Llc | Mitigation of harmful combustion emissions using sorbent containing engineered fuel feedstocks |
| US20130330257A1 (en) * | 2012-06-11 | 2013-12-12 | Calgon Carbon Corporation | Sorbents for removal of mercury |
| CN103706245A (zh) * | 2013-12-23 | 2014-04-09 | 科林环保装备股份有限公司 | 一种不设电除尘的烧结烟气脱硫脱二噁英除尘一体化设备 |
| CA2995357C (en) | 2015-08-11 | 2023-12-19 | Calgon Carbon Corporation | Enhanced sorbent formulation for removal of mercury from flue gas |
| CN105944657B (zh) * | 2016-06-14 | 2018-09-07 | 内蒙古阜丰生物科技有限公司 | 用于治理锅炉烟气的生化制剂 |
| CN113384993A (zh) * | 2021-04-30 | 2021-09-14 | 宇星科技发展(深圳)有限公司 | 一种VOCs处理系统和方法 |
| USD1096688S1 (en) * | 2022-09-29 | 2025-10-07 | Sonos, Inc. | Media player device |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US274666A (en) | 1883-03-27 | Composition of matter for preventing the occurrence of explosions | ||
| US3527694A (en) * | 1968-12-09 | 1970-09-08 | Exxon Research Engineering Co | Fluid solids system |
| DE2615828A1 (de) * | 1976-04-10 | 1977-10-13 | Heinz Hoelter | Verfahren und vorrichtung zur gasreinigung |
| DE2610074C2 (de) * | 1976-03-11 | 1985-07-25 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zum Regenerieren von beladener Aktivkohle |
| US4372927A (en) * | 1981-08-17 | 1983-02-08 | Shell Oil Company | Sulfur oxides removal |
| DE3433228C1 (de) * | 1984-09-11 | 1986-04-10 | Rheinische Kalksteinwerke GmbH, 5603 Wülfrath | Verfahren zur Herstellung von Kalziumhydroxid |
| DK158376C (da) | 1986-07-16 | 1990-10-08 | Niro Atomizer As | Fremgangsmaade til nedbringelse af indholdet af kviksoelvdamp og/eller dampe af skadelige organiske forbindelser og/eller nitrogenoxider i roeggas fra forbraendingsanlaeg |
| GB8705803D0 (en) * | 1987-03-11 | 1987-04-15 | Ici Plc | Explosion suppression system |
| US5306475A (en) * | 1987-05-18 | 1994-04-26 | Ftu Gmbh Technische Entwicklung Und Forschung Im Umweltschutz | Reactive calcium hydroxides |
| EP0377010A1 (de) * | 1988-05-16 | 1990-07-11 | Ftu Gmbh | Mittel und verfahren zur reinigung von gasen und abgasen und ein verfahren zur herstellung dieser mittel |
| DE3939214A1 (de) * | 1989-11-28 | 1991-06-13 | Ftu Gmbh | Verfahren zur reinigung von abgasen |
| DE4034498A1 (de) * | 1990-09-06 | 1992-03-12 | Metallgesellschaft Ag | Verfahren zur abtrennung von schwermetallen und dioxinen aus verbrennungsabgasen |
| DE4034417C2 (de) * | 1990-10-29 | 2002-02-07 | Walhalla Kalk Entwicklungs Und | Hochreaktive Reagentien und Zusammensetzungen für die Abgas- und Abwasserreinigung, ihre Herstellung und ihre Verwendung |
| DE4042136A1 (de) * | 1990-12-28 | 1992-07-02 | Gfa Gemeinnuetzige Ges Zur Bes | Verfahren zur reinigung von gasen |
| DE4303450C2 (de) * | 1993-02-05 | 1997-07-03 | Rheinische Kalksteinwerke | Mittel zur trockenen Reinigung von Abgasen |
| US5882615A (en) * | 1995-07-28 | 1999-03-16 | Japan Pionics Co., Ltd. | Cleaning agent and cleaning process for harmful gas |
-
1993
- 1993-02-05 DE DE4303450A patent/DE4303450C2/de not_active Expired - Fee Related
-
1994
- 1994-02-04 WO PCT/EP1994/000320 patent/WO1994017900A1/de not_active Ceased
- 1994-02-04 EP EP94906902A patent/EP0682558B1/de not_active Expired - Lifetime
- 1994-02-04 AT AT94906902T patent/ATE154254T1/de active
- 1994-02-04 ES ES94906902T patent/ES2104351T3/es not_active Expired - Lifetime
- 1994-02-04 CZ CZ19951930A patent/CZ289653B6/cs not_active IP Right Cessation
- 1994-02-04 KR KR1019950703231A patent/KR100297416B1/ko not_active Expired - Lifetime
- 1994-02-04 DK DK94906902.5T patent/DK0682558T3/da active
- 1994-02-04 CA CA002155440A patent/CA2155440A1/en not_active Abandoned
- 1994-02-04 JP JP6517637A patent/JP2822351B2/ja not_active Expired - Lifetime
- 1994-02-04 DE DE59403117T patent/DE59403117D1/de not_active Expired - Lifetime
- 1994-02-04 PL PL94310110A patent/PL310110A1/xx unknown
- 1994-10-05 US US08/318,915 patent/US6074620A/en not_active Expired - Lifetime
-
1995
- 1995-07-17 NO NO952815A patent/NO307246B1/no not_active IP Right Cessation
- 1995-07-31 FI FI953643A patent/FI113247B/fi not_active IP Right Cessation
-
1997
- 1997-09-09 GR GR970402298T patent/GR3024656T3/el unknown
-
1999
- 1999-07-19 US US09/357,013 patent/US6352956B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004524132A (ja) * | 2000-08-21 | 2004-08-12 | シーメンス アクチエンゲゼルシヤフト | 煙道ガス装置及び浄化剤の供給方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FI113247B (fi) | 2004-03-31 |
| DE59403117D1 (de) | 1997-07-17 |
| KR100297416B1 (ko) | 2001-10-24 |
| CZ193095A3 (en) | 1996-02-14 |
| KR960700798A (ko) | 1996-02-24 |
| EP0682558A1 (de) | 1995-11-22 |
| FI953643A0 (fi) | 1995-07-31 |
| WO1994017900A1 (de) | 1994-08-18 |
| DE4303450C2 (de) | 1997-07-03 |
| NO952815D0 (no) | 1995-07-17 |
| DK0682558T3 (da) | 1997-12-29 |
| US6074620A (en) | 2000-06-13 |
| ES2104351T3 (es) | 1997-10-01 |
| JP2822351B2 (ja) | 1998-11-11 |
| PL310110A1 (en) | 1995-11-27 |
| GR3024656T3 (en) | 1997-12-31 |
| FI953643L (fi) | 1995-07-31 |
| CZ289653B6 (cs) | 2002-03-13 |
| NO307246B1 (no) | 2000-03-06 |
| DE4303450A1 (de) | 1994-10-13 |
| CA2155440A1 (en) | 1994-08-18 |
| ATE154254T1 (de) | 1997-06-15 |
| US6352956B1 (en) | 2002-03-05 |
| NO952815L (no) | 1995-07-17 |
| EP0682558B1 (de) | 1997-06-11 |
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