CA2337840A1 - Method for purifying a gas stream - Google Patents
Method for purifying a gas stream Download PDFInfo
- Publication number
- CA2337840A1 CA2337840A1 CA002337840A CA2337840A CA2337840A1 CA 2337840 A1 CA2337840 A1 CA 2337840A1 CA 002337840 A CA002337840 A CA 002337840A CA 2337840 A CA2337840 A CA 2337840A CA 2337840 A1 CA2337840 A1 CA 2337840A1
- Authority
- CA
- Canada
- Prior art keywords
- oxygen
- catalyst
- lambda sensor
- lambda
- stoichiometric
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000001301 oxygen Substances 0.000 claims abstract description 70
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 70
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007789 gas Substances 0.000 claims abstract description 47
- 239000003054 catalyst Substances 0.000 claims abstract description 32
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 125000003118 aryl group Chemical group 0.000 claims abstract description 5
- 239000007790 solid phase Substances 0.000 claims abstract description 5
- 229920000728 polyester Polymers 0.000 claims abstract description 4
- 239000004952 Polyamide Substances 0.000 claims abstract description 3
- 229910000629 Rh alloy Inorganic materials 0.000 claims abstract description 3
- 229920002647 polyamide Polymers 0.000 claims abstract description 3
- 150000002894 organic compounds Chemical class 0.000 claims abstract 2
- 229910052703 rhodium Inorganic materials 0.000 claims abstract 2
- 239000010948 rhodium Substances 0.000 claims abstract 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 15
- 239000000356 contaminant Substances 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 14
- 239000000523 sample Substances 0.000 abstract description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 39
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 16
- 238000012360 testing method Methods 0.000 description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000010613 Electrolyte Activity Effects 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000013101 initial test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- -1 such as Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00256—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles in a heat exchanger for the heat exchange medium separate from the reactor
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00265—Part of all of the reactants being heated or cooled outside the reactor while recycling
- B01J2208/00274—Part of all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
-
- 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
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/05—Automatic, including computer, control
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Silicon Compounds (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Lasers (AREA)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19835186.0 | 1998-08-04 | ||
| DE19835186A DE19835186A1 (de) | 1998-08-04 | 1998-08-04 | Verfahren zur Reinigung eines Gasstromes |
| PCT/CH1999/000332 WO2000007698A1 (de) | 1998-08-04 | 1999-07-19 | Verfahren zur reinigung eines gasstroms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2337840A1 true CA2337840A1 (en) | 2000-02-17 |
Family
ID=7876417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002337840A Abandoned CA2337840A1 (en) | 1998-08-04 | 1999-07-19 | Method for purifying a gas stream |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6548031B1 (enExample) |
| EP (1) | EP1100611B1 (enExample) |
| JP (1) | JP2002522195A (enExample) |
| KR (1) | KR100596263B1 (enExample) |
| CN (1) | CN1167492C (enExample) |
| AT (1) | ATE228390T1 (enExample) |
| AU (1) | AU752167B2 (enExample) |
| BR (1) | BR9912725A (enExample) |
| CA (1) | CA2337840A1 (enExample) |
| DE (2) | DE19835186A1 (enExample) |
| ES (1) | ES2188185T3 (enExample) |
| PL (1) | PL195905B1 (enExample) |
| PT (1) | PT1100611E (enExample) |
| TR (1) | TR200100420T2 (enExample) |
| WO (1) | WO2000007698A1 (enExample) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030049182A1 (en) * | 2000-05-01 | 2003-03-13 | Christopher Hertzler | System and method for abatement of dangerous substances from a waste gas stream |
| KR100479627B1 (ko) * | 2002-05-25 | 2005-04-06 | 유니셈 주식회사 | 폐가스 처리용 습식 전처리 장치 및 그 전처리 방법 |
| DE102004041370A1 (de) * | 2004-08-25 | 2006-03-02 | Bühler AG | Festphasen-Polykondensation von Polyester mit Prozessgas-Reinigung |
| CA2650610A1 (en) * | 2006-04-28 | 2007-11-08 | Wellman, Inc. | Methods for making polyester resins in falling film melt polycondensation reactors |
| GB0817109D0 (en) | 2008-09-18 | 2008-10-29 | Johnson Matthey Plc | Catalyst and process |
| DE102009009957A1 (de) | 2009-02-23 | 2010-08-26 | Bühler AG | Verfahren zur Herstellung von Polyesterpartikeln bei hohem Durchsatz in einer Linie |
| US20110105008A1 (en) * | 2009-10-30 | 2011-05-05 | Honeywell International Inc. | Catalytic air purification system for a vehicle using multiple heat sources from an engine |
| CN103314032B (zh) * | 2010-12-15 | 2015-11-25 | 富士胶片株式会社 | 聚酯树脂的制造方法、聚酯薄膜、聚酯薄膜的制造方法、太阳能电池用背板及太阳能电池模块 |
| US9485779B2 (en) | 2012-02-15 | 2016-11-01 | Nec Corporation | Method for resource management in a TDD cellular communication network and resource management system |
| SG11201505716PA (en) * | 2013-01-25 | 2015-09-29 | Bühler Barth Gmbh | Method and device for drying and/or roasting a food |
| DE102013204821A1 (de) * | 2013-03-19 | 2014-09-25 | Robert Bosch Gmbh | Verfahren, Steuergerät und Vorrichtung zum Analysieren eines Gases |
| DE102014226486A1 (de) * | 2014-12-18 | 2016-06-23 | Dürr Systems GmbH | Vorrichtung und Verfahren zur Nachbehandlung von brennbare Inhaltsstoffe enthaltender Prozessabluft |
| EP3689440B1 (de) | 2019-02-01 | 2023-11-29 | Polymetrix AG | Verfahren und vorrichtung zur reinigung von im kreislauf geführten prozessgasen aus der thermischen behandlung von schüttgütern |
| EP3865529B1 (de) * | 2020-02-12 | 2023-06-07 | Polymetrix AG | Verfahren und vorrichtung zur verarbeitung eines gemisches aus rezykliertem polyestermaterial und einem polyester-prepolymer aus einem polyester-herstellprozess |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4950476A (en) * | 1986-11-06 | 1990-08-21 | Ford Motor Company | Method of catalytically oxidizing alcohol vapor accompanied by varying amounts of excess oxygen |
| IT1265166B1 (it) * | 1993-07-16 | 1996-10-31 | Sinco Eng Spa | Procedimento per la purificazione di gas inerti |
| US5612011A (en) * | 1993-07-16 | 1997-03-18 | Sinco Engineering S.P.A. | Process for the purification of inert gases |
| DE4430938A1 (de) * | 1994-08-31 | 1996-03-07 | Zimmer Ag | Verfahren zur Reinigung von Prozeßgasen durch katalytische Oxidation |
| US5738835A (en) * | 1994-08-31 | 1998-04-14 | Zimmer Aktiengesellschaft | Process for the purification of process gases by catalytic oxidation |
| DE19506012C2 (de) * | 1995-02-17 | 1998-12-10 | Siemens Ag | Vorrichtung zur Anpassung von Verfahren zur Katalysatorwirkungsgradüberprüfung an Katalysatoren für Brennkraftmaschinen mit zwei Lambdasonden |
| US5893039A (en) * | 1997-04-14 | 1999-04-06 | Precision Combustion, Inc. | Catalytic method |
-
1998
- 1998-08-04 DE DE19835186A patent/DE19835186A1/de not_active Withdrawn
-
1999
- 1999-07-19 AU AU45987/99A patent/AU752167B2/en not_active Ceased
- 1999-07-19 BR BR9912725-3A patent/BR9912725A/pt not_active Application Discontinuation
- 1999-07-19 CA CA002337840A patent/CA2337840A1/en not_active Abandoned
- 1999-07-19 JP JP2000563371A patent/JP2002522195A/ja not_active Withdrawn
- 1999-07-19 ES ES99928992T patent/ES2188185T3/es not_active Expired - Lifetime
- 1999-07-19 EP EP99928992A patent/EP1100611B1/de not_active Expired - Lifetime
- 1999-07-19 CN CNB998087769A patent/CN1167492C/zh not_active Expired - Fee Related
- 1999-07-19 WO PCT/CH1999/000332 patent/WO2000007698A1/de not_active Ceased
- 1999-07-19 DE DE59903562T patent/DE59903562D1/de not_active Expired - Lifetime
- 1999-07-19 AT AT99928992T patent/ATE228390T1/de not_active IP Right Cessation
- 1999-07-19 KR KR1020017001467A patent/KR100596263B1/ko not_active Expired - Fee Related
- 1999-07-19 PT PT99928992T patent/PT1100611E/pt unknown
- 1999-07-19 TR TR2001/00420T patent/TR200100420T2/xx unknown
- 1999-07-19 PL PL99345807A patent/PL195905B1/pl not_active IP Right Cessation
- 1999-07-19 US US09/700,291 patent/US6548031B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| PL195905B1 (pl) | 2007-11-30 |
| PT1100611E (pt) | 2003-04-30 |
| JP2002522195A (ja) | 2002-07-23 |
| EP1100611A1 (de) | 2001-05-23 |
| CN1167492C (zh) | 2004-09-22 |
| EP1100611B1 (de) | 2002-11-27 |
| CN1309582A (zh) | 2001-08-22 |
| PL345807A1 (en) | 2002-01-02 |
| US6548031B1 (en) | 2003-04-15 |
| AU4598799A (en) | 2000-02-28 |
| AU752167B2 (en) | 2002-09-05 |
| DE19835186A1 (de) | 2000-02-10 |
| ES2188185T3 (es) | 2003-06-16 |
| WO2000007698A1 (de) | 2000-02-17 |
| KR100596263B1 (ko) | 2006-07-03 |
| DE59903562D1 (de) | 2003-01-09 |
| KR20010072226A (ko) | 2001-07-31 |
| ATE228390T1 (de) | 2002-12-15 |
| BR9912725A (pt) | 2001-05-02 |
| TR200100420T2 (tr) | 2001-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |