DK174385B1 - Fremgangsmåde til afsvovling af røggas - Google Patents

Fremgangsmåde til afsvovling af røggas Download PDF

Info

Publication number
DK174385B1
DK174385B1 DK198403402A DK340284A DK174385B1 DK 174385 B1 DK174385 B1 DK 174385B1 DK 198403402 A DK198403402 A DK 198403402A DK 340284 A DK340284 A DK 340284A DK 174385 B1 DK174385 B1 DK 174385B1
Authority
DK
Denmark
Prior art keywords
slurry
gypsum
flue gas
gas
oxidation
Prior art date
Application number
DK198403402A
Other languages
Danish (da)
English (en)
Other versions
DK340284D0 (da
DK340284A (da
Inventor
Taiki Hashimoto
Osamu Kanda
Hiroshi Kuroda
Masakatsu Nishimura
Tsukasa Nishimura
Shigeru Nozawa
Kenji Shibata
Original Assignee
Babcock Hitachi Kk
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15830004&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK174385(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Babcock Hitachi Kk filed Critical Babcock Hitachi Kk
Publication of DK340284D0 publication Critical patent/DK340284D0/da
Publication of DK340284A publication Critical patent/DK340284A/da
Priority to DK199101289A priority Critical patent/DK174369B1/da
Application granted granted Critical
Publication of DK174385B1 publication Critical patent/DK174385B1/da

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • 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
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Urology & Nephrology (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DK198403402A 1983-09-09 1984-07-11 Fremgangsmåde til afsvovling af røggas DK174385B1 (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK199101289A DK174369B1 (da) 1983-09-09 1991-07-02 Fremgangsmåde til afsvovling af røggas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58166363A JPS6058230A (ja) 1983-09-09 1983-09-09 排煙脱硫方法および装置
JP16636383 1983-09-09

Publications (3)

Publication Number Publication Date
DK340284D0 DK340284D0 (da) 1984-07-11
DK340284A DK340284A (da) 1985-03-10
DK174385B1 true DK174385B1 (da) 2003-01-20

Family

ID=15830004

Family Applications (2)

Application Number Title Priority Date Filing Date
DK198403402A DK174385B1 (da) 1983-09-09 1984-07-11 Fremgangsmåde til afsvovling af røggas
DK911290A DK129091D0 (da) 1983-09-09 1991-07-02 Fremgangsmaade til behandling af et chlorholdigt effluent og et effluentbehandlingsanlaeg til anvendelse herved

Family Applications After (1)

Application Number Title Priority Date Filing Date
DK911290A DK129091D0 (da) 1983-09-09 1991-07-02 Fremgangsmaade til behandling af et chlorholdigt effluent og et effluentbehandlingsanlaeg til anvendelse herved

Country Status (6)

Country Link
US (1) US4687649A (fr)
EP (3) EP0405619B1 (fr)
JP (1) JPS6058230A (fr)
AT (3) ATE76592T1 (fr)
DE (3) DE3382685T2 (fr)
DK (2) DK174385B1 (fr)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108886A (en) * 1977-03-11 1978-08-22 E. R. Squibb & Sons, Inc. Thiopropanoylamino acid derivatives
JPH0720534B2 (ja) * 1986-05-28 1995-03-08 宇部興産株式会社 排煙脱硫方法
JPH0722676B2 (ja) * 1986-09-16 1995-03-15 三菱重工業株式会社 排煙脱硫方法
EP0262396A3 (fr) * 1986-09-20 1989-08-23 Heinz Dipl.-Ing. Hölter Procédé de préparation du sulfate de calcium dihydrate pendant la désulfuration de gaz de fumées
US4876076A (en) * 1988-02-10 1989-10-24 Tampa Electric Company Process of desulfurization
JPH0259017A (ja) * 1988-08-26 1990-02-28 Chiyoda Corp 有害成分含有排ガスの処理方法
DK165674C (da) * 1989-07-17 1993-05-24 Niro Atomizer As Fremgangsmaade til afsvovling af varm roeggas med et i forhold til svovldioxidindholdet lille indhold af hydrogenchlorid
US4976936A (en) * 1989-08-18 1990-12-11 Dravo Lime Company Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges
US4996032A (en) * 1989-12-21 1991-02-26 Dravo Lime Company Process for removing sulfur dioxide from flue gases
JP2691041B2 (ja) * 1990-02-14 1997-12-17 三菱重工業株式会社 フライアッシュを含む吸収液スラリーの処理方法
JP2695678B2 (ja) * 1990-06-20 1998-01-14 三菱重工業株式会社 排煙脱硫方法
JP2695680B2 (ja) * 1990-06-25 1998-01-14 三菱重工業株式会社 排煙脱硫方法
US5246677A (en) * 1991-05-07 1993-09-21 Electric Power Research Institute Addition of organophosphonates for size control of wet calcium-based FGD byproduct solids under forced oxidation conditions
US5246679A (en) * 1991-05-07 1993-09-21 Electric Power Research Institute Addition of organophosphonates for size control of wet calcium-based FGD byproduct solids under inhibited oxidation conditions
DE4131794A1 (de) * 1991-09-24 1993-03-25 Metallgesellschaft Ag Verfahren und vorrichtung zur aufarbeitung von abfallschwefelsaeure
DK0537694T3 (da) * 1991-10-17 1999-02-22 Asahi Glass Co Ltd Fremgangsmåde og indretning til behandling af effluent fra et røggasafsvovlingsanlæg
US5705046A (en) * 1991-10-17 1998-01-06 Chubu Electric Power Company, Incorporated Process for treating effluent from flue-gas desulfurization system and apparatus therefor
JP3068312B2 (ja) * 1992-03-11 2000-07-24 三菱重工業株式会社 排煙脱硫方法
US5215672A (en) * 1992-09-01 1993-06-01 The Babcock & Wilcox Company Purification of FGD gypsum product
DE4334326A1 (de) * 1993-10-08 1995-04-13 Kernforschungsz Karlsruhe Verfahren zur Behandlung von Flugasche
SE9303766L (sv) * 1993-11-15 1995-05-16 Eka Nobel Ab Förfarande för rening och återföring i kretslopp av lösningar
FR2720061B1 (fr) * 1994-05-20 1996-08-02 Rhone Poulenc Chimie Procédé de valorisation d'un effluent liquide acide contenant des métaux lourds.
US5601784A (en) * 1994-09-09 1997-02-11 Electric Power Research Institute On-line control and monitoring system for wet lime/limestone flue gas desulfurization process
JP3272565B2 (ja) * 1995-04-21 2002-04-08 三菱重工業株式会社 排煙処理装置
US6119767A (en) 1996-01-29 2000-09-19 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
AU699379B2 (en) * 1996-03-29 1998-12-03 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
FR2764206B1 (fr) * 1997-06-10 1999-09-03 Lab Sa Perfectionnement aux procedes de desulfuration des fumees par voie humide
FR2779663B1 (fr) * 1998-06-10 2000-09-01 Lab Sa Procede et installation de desulfuration de fumees
US6695018B2 (en) * 2002-06-10 2004-02-24 The Babcock & Wilcox Company Collection scoop for flue gas desulfurization systems with bleed streams or ex situ forced oxidation
CN100361731C (zh) * 2003-12-14 2008-01-16 徐宝安 一种冷水溶解电解除硬加碱法烟气脱硫装置
KR100809568B1 (ko) * 2004-04-23 2008-03-04 마츠시다 덴코 가부시키가이샤 정전 무화기를 구비한 가열 송풍 장치
CN105169795A (zh) * 2005-12-19 2015-12-23 氟石科技公司 两级急冷涤气器
CN100534587C (zh) * 2006-10-25 2009-09-02 宝山钢铁股份有限公司 烧结烟气湿法脱硫除尘工艺
WO2008087769A1 (fr) * 2007-01-17 2008-07-24 Babcock-Hitachi Kabushiki Kaisha Equipement de désulfuration par voie humide des gaz de combustion
CN100534589C (zh) * 2007-01-22 2009-09-02 宝山钢铁股份有限公司 气喷旋冲脱硫除尘装置
JP5384799B2 (ja) * 2007-03-30 2014-01-08 三菱重工メカトロシステムズ株式会社 排ガス処理装置および排ガス処理方法
DE102007050904B4 (de) 2007-10-23 2013-07-25 Babcock Noell Gmbh Anlage und Verfahren zur Reinigung von Rauchgasen
JP2011005448A (ja) * 2009-06-26 2011-01-13 Mitsubishi Heavy Ind Ltd 河川水利用排煙脱硫システム及び腐植物質除去方法
JP5031003B2 (ja) 2009-07-17 2012-09-19 三菱重工業株式会社 排ガス処理装置
CN101995345B (zh) * 2009-08-11 2012-12-12 大连华城电子有限公司 烟气脱硫ph值测量装置
ITFI20110063A1 (it) * 2011-04-08 2012-10-09 Enel Produzione Spa Metodo per il monitoraggio e controllo della chimica di un processo zld applicato alle centrali di potenza
DE102011050331A1 (de) * 2011-05-13 2012-11-15 Hitachi Power Europe Gmbh Rauchgasleitungsbedüsungsvorrichtung
US9718747B2 (en) 2013-06-19 2017-08-01 Uop Llc Process for high temperature removal of trace chloride contaminants in a catalytic dehydrogenation process
CN103406018A (zh) * 2013-08-27 2013-11-27 宁夏新航能源环境科技有限公司 一种火电厂废气回收利用的方法
MX2018007358A (es) * 2015-12-21 2018-11-09 Outotec Finland Oy Remocion de yeso de una solucion de la lixiviacion.
JP6723793B2 (ja) 2016-03-31 2020-07-15 三菱日立パワーシステムズ株式会社 脱硫処理装置及び脱硫処理装置の運転方法
JP6837355B2 (ja) * 2017-03-09 2021-03-03 千代田化工建設株式会社 脱硫方法および脱硫装置
CN108569708B (zh) * 2017-05-13 2020-01-31 江苏新世纪江南环保股份有限公司 一种平衡氨法脱硫循环液中Cl-、F-含量的方法及装置
CN110743327A (zh) * 2018-07-23 2020-02-04 国家电投集团远达环保工程有限公司重庆科技分公司 一种白烟消除系统及方法
CN111135692A (zh) * 2018-11-05 2020-05-12 新疆硅基新材料创新中心有限公司 电厂锅炉烟气脱硫得到的废浆回收利用与电厂锅炉烟气脱硝的方法及系统
JP7065161B2 (ja) * 2020-09-30 2022-05-11 千代田化工建設株式会社 脱硫方法および脱硫装置
CN112403112B (zh) * 2020-11-06 2022-09-13 益阳永发印务有限责任公司 一种食品外包装袋加工用设备喷吹装置
CN112457223B (zh) * 2020-11-24 2022-06-07 安徽海顺化工有限公司 一种用于生产十六烷基磺酸钠的脱气工艺
CN113307417B (zh) * 2021-07-28 2021-11-16 中煤科工清洁能源股份有限公司 一种脱硫废水处理装置及方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080779A (en) * 1937-05-18 Purification of combustion gases
US2139827A (en) * 1937-03-24 1938-12-13 Commw Edison Co Combined cooler and scrubber
NL162669C (nl) * 1950-07-21 Du Pont Werkwijze voor de bereiding van een fluorpolymeer.
US2796395A (en) * 1953-06-05 1957-06-18 Dorr Oliver Inc Electrolytic desalting of saline solutions
US3523880A (en) * 1967-12-27 1970-08-11 Ionics Electrolytic cell for removal and recovery of so2 from waste gases
JPS5017318B1 (fr) * 1970-12-29 1975-06-19
US3948608A (en) * 1972-03-24 1976-04-06 Weir Jr Alexander Apparatus for treating stack gases
JPS4933883A (fr) * 1972-07-28 1974-03-28
FR2203667A1 (en) * 1972-10-24 1974-05-17 Mitsubishi Heavy Ind Ltd Wet process for flue gas desulphurisation - by two stage absorption with recirculation of lime suspension giving efficient absorption and low lime loss
JPS5545493B2 (fr) * 1972-11-10 1980-11-18
US3995006A (en) * 1973-04-05 1976-11-30 The Babcock & Wilcox Company Sulphur dioxide absorption system
JPS50133973A (fr) * 1974-04-10 1975-10-23
US3957951A (en) * 1974-08-23 1976-05-18 International Telephone And Telegraph Corporation Process for removing contaminants from hot waste gas streams
DE2532373C3 (de) * 1975-07-19 1983-12-08 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Verfahren und Vorrichtung zum Reinigen von Rauchgasen und anderen Abgasen, die Schwefeldioxyd enthalten
JPS6048220B2 (ja) * 1976-11-15 1985-10-25 出光興産株式会社 湿式排煙処理工程からの塩素イオンの除去方法
JPS55124530A (en) * 1979-03-19 1980-09-25 Babcock Hitachi Kk Method for desulfurization of combustion exhaust gas
CA1129181A (fr) * 1979-03-30 1982-08-10 Mark Richman Systeme d'elimination du so.sub.2 pour la desulfuration du gaz de carneau
JPS56100621A (en) * 1980-01-11 1981-08-12 Hitachi Ltd Improvement of performance of stack gas desulfurization apparatus
JPS597493B2 (ja) * 1980-10-28 1984-02-18 川崎重工業株式会社 排ガスの脱硫装置
JPS57144024A (en) * 1981-03-04 1982-09-06 Babcock Hitachi Kk Wet type waste gas desulfurization device
DE3121014A1 (de) * 1981-05-27 1982-12-16 Gerhard Dipl.-Chem. Dr.-Ing. 5628 Heiligenhaus Kunz Verfahren zur entkarbonisierung von wasser
US4495162A (en) * 1981-09-04 1985-01-22 A/S Niro Atomizer Preparation of a calcium sulfate anhydrite material of low chloride content
US4487784A (en) * 1982-02-22 1984-12-11 Babcock-Hitachi Kabushiki Kaisha Limestone-gypsum flue gas desulfurization process
EP0121611B1 (fr) * 1983-03-14 1990-04-25 AlliedSignal Inc. Acidification de saumure avec production simultanée d'hydroxyde de métal alcalin et d'acide hydrochlorique par décomposition de l'eau dans un électrodialyseur à trois types de compartiments

Also Published As

Publication number Publication date
EP0139802B1 (fr) 1992-05-27
EP0408092B1 (fr) 1993-05-19
US4687649A (en) 1987-08-18
EP0405619B1 (fr) 1993-05-19
ATE89493T1 (de) 1993-06-15
ATE89492T1 (de) 1993-06-15
ATE76592T1 (de) 1992-06-15
EP0408092A1 (fr) 1991-01-16
DK340284D0 (da) 1984-07-11
DE3382571D1 (de) 1992-07-02
DE3382685T2 (de) 1993-10-07
DK340284A (da) 1985-03-10
EP0405619A1 (fr) 1991-01-02
DK129091A (da) 1991-07-02
EP0139802A3 (en) 1988-08-10
DK129091D0 (da) 1991-07-02
DE3382686T2 (de) 1993-10-07
EP0139802A2 (fr) 1985-05-08
JPS6058230A (ja) 1985-04-04
DE3382686D1 (de) 1993-06-24
DE3382685D1 (de) 1993-06-24

Similar Documents

Publication Publication Date Title
DK174385B1 (da) Fremgangsmåde til afsvovling af røggas
US4487784A (en) Limestone-gypsum flue gas desulfurization process
KR100382444B1 (ko) 연도기체세정장치
US4696804A (en) Method for treating SO2, SO3 and dust simultaneously
EP0620187B1 (fr) Procédé pour d'absorption d'oxides de soufre et la préparation du sulfate d'ammonium simultanées
US4690807A (en) Process for the simultaneous absorption of sulfur oxides and production of ammonium sulfate
CN101343077B (zh) 利用氨碱厂白泥脱除锅炉烟气二氧化硫制取石膏的方法
KR920002062B1 (ko) 배기가스처리를 위한 습식 탈황방법.
CN102151470B (zh) 一种烟气脱硫方法及其装置
US4246245A (en) SO2 Removal
JPS60179120A (ja) 石膏とダストを分離回収する排ガス処理方法
US3784680A (en) Cyclical process for recovery of elemental sulfur from waste gases
EP0604701B1 (fr) Procédé pour la séparation du dioxide de soufre à partir de courants gazeux, avec formation du gypse alpha-hémihydraté
DK160599B (da) Fremgangsmaade og apparat til rensning af roeggas samt genvinding af varme herfra
JP7196575B2 (ja) 二酸化硫黄を含む排ガスの除害化方法
DK174369B1 (da) Fremgangsmåde til afsvovling af røggas
DK170325B1 (da) Fremgangsmåde til afsvovling af røggas.
CN103585875A (zh) 一种造纸中段废水与白泥复合脱硫工艺
CN205687575U (zh) 一种氧化镁湿法脱硫副产物的处理装置
KR100310109B1 (ko) 황산화물의 흡수와 황산암모늄의 동시 제조방법
JPS59230620A (ja) 湿式排煙脱硫装置のスラリ−濃度管理方法
JP4192319B2 (ja) 湿式排煙脱硫方法および湿式排煙脱硫装置
DK168588B1 (da) Gasvasketårn omfattende et eller flere vasketrin og et slamområde til rensning af gasser
Shinoda et al. Method for treating SO 2, SO 3 and dust simultaneously
JPH1176751A (ja) 排煙処理設備

Legal Events

Date Code Title Description
PBP Patent lapsed

Country of ref document: DK