CA2050106A1 - Cloche de barbotage pour la fusion de solides et methode d'utilisation de celle-ci - Google Patents
Cloche de barbotage pour la fusion de solides et methode d'utilisation de celle-ciInfo
- Publication number
- CA2050106A1 CA2050106A1 CA2050106A CA2050106A CA2050106A1 CA 2050106 A1 CA2050106 A1 CA 2050106A1 CA 2050106 A CA2050106 A CA 2050106A CA 2050106 A CA2050106 A CA 2050106A CA 2050106 A1 CA2050106 A1 CA 2050106A1
- Authority
- CA
- Canada
- Prior art keywords
- bubble cap
- same
- cap tray
- melting solids
- tray
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
-
- 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
- F25J3/0204—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 feed stream
- F25J3/0209—Natural gas or substitute natural gas
-
- 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
- F25J3/0233—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 CnHm with 1 carbon atom or more
-
- 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
- F25J3/0266—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 carbon dioxide
-
- 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
- F25J3/0295—Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
-
- 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
- F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
-
- 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
- F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead gas
-
- 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
- F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
-
- 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
- F25J2205/20—Processes or apparatus using other separation and/or other processing means using solidification of components
-
- 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
- F25J2280/00—Control of the process or apparatus
- F25J2280/40—Control of freezing of components
-
- 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
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y10S62/902—Apparatus
- Y10S62/905—Column
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/593,701 US5265428A (en) | 1990-10-05 | 1990-10-05 | Bubble cap tray for melting solids and method for using same |
US593,701 | 1990-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2050106A1 true CA2050106A1 (fr) | 1992-04-06 |
CA2050106C CA2050106C (fr) | 2000-11-07 |
Family
ID=24375787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002050106A Expired - Lifetime CA2050106C (fr) | 1990-10-05 | 1991-08-28 | Cloche de barbotage pour la fusion de solides et methode d'utilisation de celle-ci |
Country Status (5)
Country | Link |
---|---|
US (1) | US5265428A (fr) |
CA (1) | CA2050106C (fr) |
GB (1) | GB2248492B (fr) |
MY (1) | MY107581A (fr) |
NO (1) | NO913849L (fr) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339648A (en) * | 1993-08-05 | 1994-08-23 | Praxair Technology, Inc. | Distillation system with partitioned column |
FR2754541B1 (fr) * | 1996-10-15 | 1998-12-24 | Air Liquide | Procede et installation pour la separation d'un melange d'hydrogene et/ou d'au moins un hydrocarbure et/ou d'azote et/ou d'oxyde de carbone |
ES2251010T5 (es) * | 1996-12-19 | 2011-04-26 | Haldor Topsoe A/S | Dispositivo de distribución de dos fases de corriente descendente. |
TW366409B (en) * | 1997-07-01 | 1999-08-11 | Exxon Production Research Co | Process for liquefying a natural gas stream containing at least one freezable component |
FR2824018B1 (fr) | 2001-04-26 | 2003-07-04 | Arjo Wiggins Sa | Couverture incorporant un dispositif d'identification radiofrequence |
MY145090A (en) * | 2005-09-15 | 2011-12-30 | Shell Int Research | Process and apparatus for removal of sour species from a natural gas stream |
US20100018248A1 (en) * | 2007-01-19 | 2010-01-28 | Eleanor R Fieler | Controlled Freeze Zone Tower |
CA2674618C (fr) * | 2007-01-19 | 2015-02-10 | Exxonmobil Upstream Research Company | Tour a zone cfz (controlled freeze zone) integree et paroi de separation (dwc) pour ameliorer la recuperation d'hydrocarbures |
US7883569B2 (en) * | 2007-02-12 | 2011-02-08 | Donald Leo Stinson | Natural gas processing system |
US20100107687A1 (en) * | 2008-11-06 | 2010-05-06 | Diki Andrian | Process for removing gaseous contaminants from a feed gas stream comprising methane and gaseous contaminants |
JP5632455B2 (ja) | 2009-04-20 | 2014-11-26 | エクソンモービル アップストリーム リサーチ カンパニー | 炭化水素ガス流から酸性ガスを除去する極低温システム及び酸性ガスの除去方法 |
MY161120A (en) * | 2009-09-09 | 2017-04-14 | Exxonmobil Upstream Res Co | Cryogenic system for removing acid gases from a hydrocarbon gas stream |
SG182308A1 (en) | 2010-01-22 | 2012-08-30 | Exxonmobil Upstream Res Co | Removal of acid gases from a gas stream, with co2 capture and sequestration |
US10408534B2 (en) | 2010-02-03 | 2019-09-10 | Exxonmobil Upstream Research Company | Systems and methods for using cold liquid to remove solidifiable gas components from process gas streams |
EA021899B1 (ru) | 2010-07-30 | 2015-09-30 | Эксонмобил Апстрим Рисерч Компани | Криогенная система для удаления кислых газов из потока газообразного углеводорода с использованием разделительных устройств с параллельным потоком |
CA2867287C (fr) | 2012-03-21 | 2019-06-11 | Exxonmobil Upstream Research Company | Separation de dioxyde de carbone et d'ethane presents dans un courant melange |
US9874395B2 (en) | 2013-12-06 | 2018-01-23 | Exxonmobil Upstream Research Company | Method and system for preventing accumulation of solids in a distillation tower |
CN105705213A (zh) * | 2013-12-06 | 2016-06-22 | 埃克森美孚上游研究公司 | 采用表面处理手段分离烃类与污染物的方法和设备 |
EA032756B1 (ru) | 2013-12-06 | 2019-07-31 | Эксонмобил Апстрим Рисерч Компани | Способ и устройство для разделения углеводородов и загрязняющих веществ посредством распылительного узла |
MX363766B (es) | 2013-12-06 | 2019-04-02 | Exxonmobil Upstream Res Co | Metodo y dispositivo para separar hidrocarburos y contaminantes con un mecanismo de calentamiento para desestabilizar y/o prevenir la adhesion de solidos. |
MY177751A (en) | 2013-12-06 | 2020-09-23 | Exxonmobil Upstream Res Co | Method and device for separating a feed stream using radiation detectors |
WO2015084499A2 (fr) | 2013-12-06 | 2015-06-11 | Exxonmobil Upstream Research Company | Procédé et système permettant de modifier un niveau de liquide pendant des opérations de démarrage |
WO2015084498A2 (fr) | 2013-12-06 | 2015-06-11 | Exxonmobil Upstream Research Company | Procédé et système permettant de séparer un courant d'alimentation avec un mécanisme de distribution de courant d'alimentation |
WO2015084495A2 (fr) * | 2013-12-06 | 2015-06-11 | Exxonmobil Upstream Research Company | Procédé et système de maintien d'un niveau de liquide dans une tour de distillation |
US9562719B2 (en) | 2013-12-06 | 2017-02-07 | Exxonmobil Upstream Research Company | Method of removing solids by modifying a liquid level in a distillation tower |
CA2925404C (fr) | 2013-12-06 | 2018-02-06 | Exxonmobil Upstream Research Company | Procede et systeme de deshydratation d'un flux d'alimentation traite dans une tour de distillation |
US9504984B2 (en) | 2014-04-09 | 2016-11-29 | Exxonmobil Upstream Research Company | Generating elemental sulfur |
WO2015163997A2 (fr) * | 2014-04-22 | 2015-10-29 | Exxonmobil Upstream Research Company | Procédé et système de démarrage d'une colonne de distillation |
WO2015191161A1 (fr) * | 2014-06-11 | 2015-12-17 | Exxonmobil Upstream Research Company | Procédé de séparation d'un gaz d'alimentation dans une colonne |
CA2950129C (fr) * | 2014-07-08 | 2019-04-09 | Exxonmobil Upstream Research Company | Procede et systeme de separation de fluides dans une tour de distillation |
SG11201702211XA (en) | 2014-10-22 | 2017-05-30 | Exxonmobil Upstream Res Co | Method and system of controlling a temperature within a melt tray assembly of a distillation tower |
CN106999792B (zh) | 2014-11-17 | 2019-11-12 | 埃克森美孚上游研究公司 | 用于从烃类蒸汽流去除污染物的热交换机构 |
MX363834B (es) | 2014-12-30 | 2019-04-04 | Exxonmobil Upstream Res Co | Ensamblaje de bandejas de acumulacion y fusion para una torre de destilacion. |
WO2016137591A1 (fr) | 2015-02-27 | 2016-09-01 | Exxonmobil Upstream Research Company | Réduction d'une charge de réfrigération et de déshydratation pour un flux d'alimentation entrant dans un processus de distillation cryogénique |
MY185885A (en) | 2015-06-22 | 2021-06-14 | Exxonmobil Upstream Res Co | Purge to intermediste pressure in cryogenic distillation |
CA2994812C (fr) | 2015-09-18 | 2020-03-10 | Exxonmobil Upstream Research Company | Composant de chauffage pour reduction de la solidification dans un systeme de distillation cryogenique |
CA2998466C (fr) | 2015-09-24 | 2021-06-29 | Exxonmobil Upstream Research Company | Usine de traitement pour hydrocarbure gazeux presentant des niveaux de contaminants variables |
MX2018011641A (es) | 2016-03-30 | 2019-01-10 | Exxonmobil Upstream Res Co | Fluido de yacimiento auto-generado para recuperacion de petroleo mejorada. |
KR101709754B1 (ko) * | 2016-05-16 | 2017-02-23 | 베니트엠 주식회사 | 기체분배장치 및 기체 분배비율을 조절하는 방법 |
WO2020005552A1 (fr) | 2018-06-29 | 2020-01-02 | Exxonmobil Upstream Research Company | Plateau hybride pour introduire un flux d'alimentation en à faible teneur en co2 dans une tour de distillation |
WO2020005553A1 (fr) | 2018-06-29 | 2020-01-02 | Exxonmobil Upstream Research Company (Emhc-N1.4A.607) | Mélange et intégration de chaleur de liquides de plateau de fusion dans une tour de distillation cryogénique |
RU203643U1 (ru) * | 2020-05-12 | 2021-04-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Колпачковая тарелка |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1510178A (en) * | 1921-01-03 | 1924-09-30 | Lachmann Walter | Rectifying column |
US2502251A (en) * | 1946-12-13 | 1950-03-28 | Air Reduction | Apparatus for the separation of gaseous mixtures |
US2650480A (en) * | 1947-08-22 | 1953-09-01 | Phillips Petroleum Co | Low-temperature absorption refrigeration |
US2804292A (en) * | 1949-02-02 | 1957-08-27 | Air Prod Inc | Gas-liquid contact apparatus |
US2930201A (en) * | 1953-08-31 | 1960-03-29 | Linde Eismasch Ag | Process for the production of oxygen of low argon content |
US2946200A (en) * | 1955-06-09 | 1960-07-26 | Air Prod Inc | Method of separating gaseous mixtures |
JPS5232353A (en) * | 1975-09-05 | 1977-03-11 | Matsushita Electric Ind Co Ltd | Device for measuring ghost image |
FR2542421B1 (fr) * | 1983-03-08 | 1985-07-05 | Air Liquide | Procede et appareil pour produire un gaz a haute purete par vaporisation d'un liquide cryogenique |
US4533372A (en) * | 1983-12-23 | 1985-08-06 | Exxon Production Research Co. | Method and apparatus for separating carbon dioxide and other acid gases from methane by the use of distillation and a controlled freezing zone |
US4923493A (en) * | 1988-08-19 | 1990-05-08 | Exxon Production Research Company | Method and apparatus for cryogenic separation of carbon dioxide and other acid gases from methane |
-
1990
- 1990-10-05 US US07/593,701 patent/US5265428A/en not_active Expired - Lifetime
-
1991
- 1991-08-28 CA CA002050106A patent/CA2050106C/fr not_active Expired - Lifetime
- 1991-09-12 MY MYPI91001658A patent/MY107581A/en unknown
- 1991-10-01 NO NO91913849A patent/NO913849L/no unknown
- 1991-10-03 GB GB9121012A patent/GB2248492B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2248492A (en) | 1992-04-08 |
NO913849D0 (no) | 1991-10-01 |
GB2248492B (en) | 1994-07-13 |
MY107581A (en) | 1996-04-30 |
CA2050106C (fr) | 2000-11-07 |
US5265428A (en) | 1993-11-30 |
NO913849L (no) | 1992-04-06 |
GB9121012D0 (en) | 1991-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |