BR9608899A - Processo e o aparelho para redução do conteúdo de nox de um gás de combustão - Google Patents
Processo e o aparelho para redução do conteúdo de nox de um gás de combustãoInfo
- Publication number
- BR9608899A BR9608899A BR9608899-0A BR9608899A BR9608899A BR 9608899 A BR9608899 A BR 9608899A BR 9608899 A BR9608899 A BR 9608899A BR 9608899 A BR9608899 A BR 9608899A
- Authority
- BR
- Brazil
- Prior art keywords
- flue gas
- gas
- liquid
- phosphorus
- oxidation
- Prior art date
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title abstract 9
- 239000003546 flue gas Substances 0.000 title abstract 9
- 238000000034 method Methods 0.000 title abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 28
- 239000007788 liquid Substances 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 abstract 1
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 abstract 1
- LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical class [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 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
- B01D53/346—Controlling the process
-
- 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
- B01D53/343—Heat recovery
-
- 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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Cleaning In General (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
''PROCESSO E O APARELHO PARA REDUçãO DO CONTEúDO DE NO~ x~ DE UM GáS DE COMBUSTãO'', onde uma emulsão de P~ 4~ em água líquido/líquido é injetada no gás de combustão para induzir oxidação acelerada por fósforo de NO no gás de combustão. óxidos de fósforo e NO~ 2~ são subsequentemente removidos da corrente de gás de combustão em uma localização suficientemente corrente abaixo da localização de injeção para que a oxidação de NO no gás de combustão seja substancialmente finalizada antes da remoção de NO~ 2~. Isto melhora significativamente o grau de recuperação de NO~ x ~ do presente sistema e método, em relação aos da anterioridade. O sistema pode ser retro-encaixado à corrente de gás desperdiçado de qualquer fonte de combustão estacionária, independentemente do combustível queimado. O sistema é vantajosamante utilizado em conjunto com um purificador a úmido para remoção de NO~ 2~ e outros componentes de gás de combustão em água. A injeção da emulsão resulta na formação de ozónio por meio de oxidação controlada de fósforo branco. O ozónio reage com óxido de nitrogênio (NO), o qual geralmente é responsável por 90% de NO~ x~ de gás de combustão, produzindo dióxido de nitrogênio. Os produtos da reação (NO~ 2~ e o P~4~O~ 10~) podem ser removidos do gás de combustão juntamente com SO~ 2~ e particulados no purificador a úmido onde são eficazmente transferidos da fase gasosa para o líquido de purificação amortecedor. No purificador, o gradiente da temperatura é preferivelmente estabelecido através do ponto de condensação, para que recupere energia de calor tanto latente quanto sensível do gás de combustão, energia esta a qual pose ser vendida para consumidores residenciais ou comerciais para recuperar pelo menos parte dos custos de capital (compra e operação) associados ao sistema.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45267195A | 1995-05-30 | 1995-05-30 | |
| PCT/CA1996/000344 WO1996038218A1 (en) | 1995-05-30 | 1996-05-29 | Flue gas scrubbing and waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9608899A true BR9608899A (pt) | 1999-12-07 |
Family
ID=23797428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9608899-0A BR9608899A (pt) | 1995-05-30 | 1996-05-29 | Processo e o aparelho para redução do conteúdo de nox de um gás de combustão |
Country Status (27)
| Country | Link |
|---|---|
| US (1) | US6063348A (pt) |
| EP (1) | EP0828550B1 (pt) |
| JP (1) | JPH11511061A (pt) |
| KR (1) | KR100419314B1 (pt) |
| CN (1) | CN1089623C (pt) |
| AT (1) | ATE190239T1 (pt) |
| AU (1) | AU697034B2 (pt) |
| BR (1) | BR9608899A (pt) |
| CA (1) | CA2220456A1 (pt) |
| CZ (1) | CZ290490B6 (pt) |
| DE (1) | DE69606998T2 (pt) |
| DK (1) | DK0828550T3 (pt) |
| EA (1) | EA000374B1 (pt) |
| ES (1) | ES2146002T3 (pt) |
| FI (1) | FI974330A0 (pt) |
| GR (1) | GR3033623T3 (pt) |
| HU (1) | HU222552B1 (pt) |
| MX (1) | MX9709253A (pt) |
| NO (1) | NO316929B1 (pt) |
| NZ (1) | NZ308045A (pt) |
| PL (1) | PL184600B1 (pt) |
| PT (1) | PT828550E (pt) |
| RO (1) | RO118697B1 (pt) |
| SK (1) | SK282302B6 (pt) |
| TR (1) | TR199701478T1 (pt) |
| UA (1) | UA61885C2 (pt) |
| WO (1) | WO1996038218A1 (pt) |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11324652A (ja) * | 1998-04-09 | 1999-11-26 | Fev Motorentechnik Gmbh & Co Kg | 自動車の有害物質の放出を低減する方法 |
| US6490984B1 (en) * | 1998-12-28 | 2002-12-10 | Miyoshi Yushi Kabushiki Kaisha | Method of making flue gas harmless |
| KR100345408B1 (ko) * | 1999-01-18 | 2002-07-24 | 가부시키가이샤 다쿠마 | 열수를 이용한 배출가스 감온방법 및 그 장치 |
| US6523811B1 (en) * | 1999-01-18 | 2003-02-25 | Takuma Co., Ltd. | Method and device for temperature reduction of exhaust gas by making use of thermal water |
| DE19939951C2 (de) * | 1999-08-23 | 2002-10-24 | Sgl Acotec Gmbh | Verfahren für einen Brenner und eine entsprechende Vorrichtung |
| US6773683B2 (en) * | 2001-01-08 | 2004-08-10 | Uvtech Systems, Inc. | Photocatalytic reactor system for treating flue effluents |
| US20090215375A1 (en) * | 2003-03-06 | 2009-08-27 | Greenvex | Fan Assemblies, Mechanical Draft Systems and Methods |
| US20070209653A1 (en) * | 2003-03-06 | 2007-09-13 | Exhausto, Inc. | Pressure Controller for a Mechanical Draft System |
| EP1663861B1 (en) * | 2003-07-09 | 2016-04-27 | Belco Technologies Corporation | WET SCRUBBING APPARATUS AND METHOD FOR CONTROLLING NOx EMISSIONS |
| US20070072138A1 (en) * | 2005-09-23 | 2007-03-29 | Exhausto, Inc. | Atmosphere-control-system design programs and methods |
| CN100354022C (zh) * | 2005-10-14 | 2007-12-12 | 浙江大学 | 锅炉烟气臭氧氧化脱硝方法 |
| FI20065330L (fi) | 2006-05-16 | 2007-11-17 | Kvaerner Power Oy | Menetelmä ja laitteisto laivamoottorin rikkidioksidipäästöjen vähentämiseksi |
| FI124679B (fi) | 2006-10-13 | 2014-12-15 | Fortum Oyj | Menetelmä ja sovitelma kattilan polton valvomiseksi |
| US7955419B2 (en) * | 2007-07-25 | 2011-06-07 | Casella Waste Systems, Inc. | System and method for treating landfill gas using landfill leachate |
| US8809037B2 (en) | 2008-10-24 | 2014-08-19 | Bioprocessh20 Llc | Systems, apparatuses and methods for treating wastewater |
| GB0902234D0 (en) * | 2009-02-11 | 2009-03-25 | Edwards Ltd | Method of treating an exhaust gas stream |
| IT1395291B1 (it) * | 2009-02-23 | 2012-09-05 | Mazzega | Impianto per il recupero energetico. |
| IT1392986B1 (it) * | 2009-02-23 | 2012-04-02 | Eberle | Dispositivo per il recupero energetico. |
| JP4838870B2 (ja) * | 2009-04-28 | 2011-12-14 | 三菱重工業株式会社 | 伝熱管監視装置 |
| US9308496B2 (en) * | 2010-04-23 | 2016-04-12 | General Electric Company | System and method for controlling and reducing NOx emissions |
| US8795620B2 (en) | 2011-02-15 | 2014-08-05 | Ati Properties, Inc. | Systems and methods for recovering nitric acid from pickling solutions |
| US8784762B2 (en) | 2011-02-15 | 2014-07-22 | Ati Properties, Inc. | Treatment of NOx-containing gas streams |
| US8728221B2 (en) * | 2011-09-18 | 2014-05-20 | Donald F. Laffler | Modified wet scrubber for removal of airborne toner |
| CN102343201A (zh) * | 2011-10-11 | 2012-02-08 | 南京大学 | 一种利用烟道气余热脱除其酸性气体的工艺 |
| US9144769B2 (en) | 2012-01-09 | 2015-09-29 | Scio-Tech, Llc | Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof |
| US9981241B2 (en) | 2012-01-09 | 2018-05-29 | Alloys Cleaning, Inc. | Removal of atmospheric pollutants from gas, related apparatuses, processes and uses thereof |
| AU2013267986B2 (en) | 2012-01-09 | 2017-10-12 | Larry Kent Barnthouse | Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof |
| CN102755822A (zh) * | 2012-07-30 | 2012-10-31 | 上海市张江高科技园区新能源技术有限公司 | 烟气循环流化床同时脱硫脱氮系统 |
| CN104056514A (zh) * | 2013-03-23 | 2014-09-24 | 吕荣才 | 污染气体、颗粒物收集及利用系统 |
| CN105056868A (zh) * | 2015-08-10 | 2015-11-18 | 宜兴福鼎环保工程有限公司 | 一种高效sncr脱硝装置 |
| CN105148699B (zh) * | 2015-09-02 | 2018-01-12 | 北京国电龙源环保工程有限公司 | 一种单塔氧化脱硫脱硝装置及其脱硫脱硝方法 |
| US11485649B2 (en) * | 2015-09-03 | 2022-11-01 | Questor Technology Inc. | System for reducing produced water disposal volumes utilizing waste heat |
| US10065151B2 (en) * | 2015-12-21 | 2018-09-04 | Linde Aktiengesellschaft | Methods for removing contaminants from gas streams |
| CN106244175B (zh) * | 2016-08-19 | 2019-02-19 | 肖爱国 | 烟气高温碳还原脱硝和热能回收装置 |
| CN106955565A (zh) * | 2017-03-20 | 2017-07-18 | 中信戴卡股份有限公司 | 一种用于处理盐雾机废气的装置 |
| JP2018171583A (ja) * | 2017-03-31 | 2018-11-08 | 三菱日立パワーシステムズ株式会社 | 無排水化排ガス処理システム及び無排水化排ガス処理方法 |
| CN108744930B (zh) * | 2018-06-13 | 2021-10-26 | 哈尔滨工程大学 | 一种基于喷射器的高效回收燃气锅炉烟气余热的系统 |
| CN110038394A (zh) * | 2018-09-13 | 2019-07-23 | 苏治汇 | 气体净化装置 |
| CN109675426A (zh) * | 2018-12-06 | 2019-04-26 | 昆明理工大学 | 一种利用磷矿粉和泥磷对烟气脱硫脱硝并副产硝酸磷肥的系统及方法 |
| CN110975923A (zh) * | 2019-11-21 | 2020-04-10 | 太原理工大学 | 一种用于催化氧化no和so2的复合液相催化氧化剂的制备方法 |
| CN111603923A (zh) * | 2020-05-22 | 2020-09-01 | 朱文艳 | 一种高浓度氮氧化物三级尾气净化塔 |
| CN115193178B (zh) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | 烟气过滤除尘装置及黄磷烟气净化系统 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033653A (en) * | 1960-06-27 | 1962-05-08 | American Agricultural Chem Co | Preparation of carbon-free phosphorus |
| US4178357A (en) * | 1977-11-28 | 1979-12-11 | Stoddard Xerxes T | Stripping sulphur compounds from stack and other discharge gases and the commercial products derived therefrom |
| DE2915795A1 (de) * | 1979-04-19 | 1980-10-23 | Helmut Dipl Chem Ulrich | Heizungsanlage |
| DE3238424A1 (de) * | 1982-10-16 | 1984-04-19 | Hoechst Ag, 6230 Frankfurt | Verfahren zur entfernung von stickstoffmonoxid aus abgasen |
| US5023064A (en) * | 1987-03-02 | 1991-06-11 | Turbotak Inc. | Method for removing sulfur oxide |
| US5164167A (en) * | 1988-10-24 | 1992-11-17 | Regents Of The University Of California | Process for the removal of acid forming gases from exhaust gases |
| US5348715A (en) * | 1988-10-24 | 1994-09-20 | The Regents Of The University Of California | Processes to remove acid forming gases from exhaust gases |
| US5284636A (en) * | 1992-03-25 | 1994-02-08 | Air Products And Chemicals, Inc. | Method of stabilizing heavy metals in ash residues from combustion devices by addition of elemental phosphorus |
-
1996
- 1996-05-29 EP EP96914032A patent/EP0828550B1/en not_active Expired - Lifetime
- 1996-05-29 NZ NZ308045A patent/NZ308045A/xx unknown
- 1996-05-29 ES ES96914032T patent/ES2146002T3/es not_active Expired - Lifetime
- 1996-05-29 PT PT96914032T patent/PT828550E/pt unknown
- 1996-05-29 UA UA97115681A patent/UA61885C2/uk unknown
- 1996-05-29 EA EA199700345A patent/EA000374B1/ru not_active IP Right Cessation
- 1996-05-29 CZ CZ19973774A patent/CZ290490B6/cs not_active IP Right Cessation
- 1996-05-29 TR TR97/01478T patent/TR199701478T1/xx unknown
- 1996-05-29 JP JP8536052A patent/JPH11511061A/ja not_active Ceased
- 1996-05-29 AT AT96914032T patent/ATE190239T1/de not_active IP Right Cessation
- 1996-05-29 AU AU57573/96A patent/AU697034B2/en not_active Ceased
- 1996-05-29 WO PCT/CA1996/000344 patent/WO1996038218A1/en active IP Right Grant
- 1996-05-29 KR KR1019970708594A patent/KR100419314B1/ko not_active IP Right Cessation
- 1996-05-29 CA CA002220456A patent/CA2220456A1/en not_active Abandoned
- 1996-05-29 HU HU9900070A patent/HU222552B1/hu not_active IP Right Cessation
- 1996-05-29 RO RO97-02199A patent/RO118697B1/ro unknown
- 1996-05-29 PL PL96323732A patent/PL184600B1/pl not_active IP Right Cessation
- 1996-05-29 DK DK96914032T patent/DK0828550T3/da active
- 1996-05-29 BR BR9608899-0A patent/BR9608899A/pt not_active IP Right Cessation
- 1996-05-29 DE DE69606998T patent/DE69606998T2/de not_active Expired - Fee Related
- 1996-05-29 SK SK1617-97A patent/SK282302B6/sk unknown
- 1996-05-29 CN CN96195619A patent/CN1089623C/zh not_active Expired - Fee Related
-
1997
- 1997-04-16 US US08/842,639 patent/US6063348A/en not_active Expired - Fee Related
- 1997-11-26 FI FI974330A patent/FI974330A0/fi unknown
- 1997-11-28 MX MX9709253A patent/MX9709253A/es not_active IP Right Cessation
- 1997-11-28 NO NO19975506A patent/NO316929B1/no unknown
-
2000
- 2000-06-07 GR GR20000401309T patent/GR3033623T3/el not_active IP Right Cessation
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