[go: up one dir, main page]

EA199900753A1 - Усовершенствованный способ синтеза мочевины и устройство для его осуществления - Google Patents

Усовершенствованный способ синтеза мочевины и устройство для его осуществления

Info

Publication number
EA199900753A1
EA199900753A1 EA199900753A EA199900753A EA199900753A1 EA 199900753 A1 EA199900753 A1 EA 199900753A1 EA 199900753 A EA199900753 A EA 199900753A EA 199900753 A EA199900753 A EA 199900753A EA 199900753 A1 EA199900753 A1 EA 199900753A1
Authority
EA
Eurasian Patent Office
Prior art keywords
synthesis
urea
condensate
pipes
contact
Prior art date
Application number
EA199900753A
Other languages
English (en)
Other versions
EA001299B1 (ru
Inventor
Ясухико Кодзима
Хидецугу Фудзии
Original Assignee
Тойо Инджиниринг Корпорейшн
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
Application filed by Тойо Инджиниринг Корпорейшн filed Critical Тойо Инджиниринг Корпорейшн
Publication of EA199900753A1 publication Critical patent/EA199900753A1/ru
Publication of EA001299B1 publication Critical patent/EA001299B1/ru

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • 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
    • B01D53/002—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 by condensation
    • 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
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
    • 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
    • B01J19/006—Baffles
    • 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
    • B01J19/0073—Sealings
    • 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
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • 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
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • B01J2219/00078—Fingers
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • B01J2219/00083—Coils
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00761—Details of the reactor
    • B01J2219/00763—Baffles
    • B01J2219/00765—Baffles attached to the reactor wall
    • B01J2219/00777—Baffles attached to the reactor wall horizontal
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
    • B01J2219/0277—Metal based
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/182—Details relating to the spatial orientation of the reactor horizontal
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/185—Details relating to the spatial orientation of the reactor vertical
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Настоящим изобретением является усовершенствованный способ синтеза мочевины из аммиака и двуокиси углерода, предотвращающий коррозию участков соединений плиты для труб и охлаждающих труб, находящихся в контакте с конденсатом, в конденсаторе, установленном вертикально или горизонтально. В соответствии с этим способом участки, находящиеся в контакте с конденсатом, соединений плиты для труб и охлаждающих труб в конденсаторе защищают от коррозии путем покрытия участков жидким аммиаком или раствором, обогащенным аммиаком, в процессе синтеза мочевины, включающем отделение не прореагировавшего аммиака и не прореагировавшей двуокиси углерода в виде их газообразной смеси от раствора для синтеза мочевины при давлении, по существу равном давлению синтеза мочевины, контакт газообразной смеси с абсорбирующей средой в конденсаторе для образования конденсата и рециркуляцию конденсата в колонну синтеза.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA199900753A 1997-12-18 1998-12-17 Усовершенствованный способ синтеза мочевины и устройство для его осуществления EA001299B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP34934097A JP4112056B2 (ja) 1997-12-18 1997-12-18 改良された尿素の合成方法および装置
PCT/JP1998/005698 WO1999031053A1 (en) 1997-12-18 1998-12-17 Improved process for the synthesis of urea and equipment therefor

Publications (2)

Publication Number Publication Date
EA199900753A1 true EA199900753A1 (ru) 2000-02-28
EA001299B1 EA001299B1 (ru) 2000-12-25

Family

ID=18403117

Family Applications (1)

Application Number Title Priority Date Filing Date
EA199900753A EA001299B1 (ru) 1997-12-18 1998-12-17 Усовершенствованный способ синтеза мочевины и устройство для его осуществления

Country Status (12)

Country Link
US (1) US6093850A (ru)
EP (1) EP0976724B1 (ru)
JP (1) JP4112056B2 (ru)
CN (1) CN1071742C (ru)
BR (1) BR9806081B1 (ru)
CA (1) CA2268974C (ru)
DE (1) DE69829556T2 (ru)
EA (1) EA001299B1 (ru)
ES (1) ES2238777T3 (ru)
ID (1) ID23791A (ru)
UA (1) UA57064C2 (ru)
WO (1) WO1999031053A1 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4292835B2 (ja) * 2003-03-13 2009-07-08 沖電気工業株式会社 秘密再構成方法、分散秘密再構成装置、及び秘密再構成システム
US7922065B2 (en) * 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
WO2006083250A1 (en) * 2005-02-03 2006-08-10 Stepan Company Continuous segmented plug flow reactor
WO2006083251A1 (en) * 2005-02-03 2006-08-10 Stepan Company Method for performing chemical reactions in a continuous segmented plug flow reactor
CN101166714B (zh) 2005-04-27 2011-11-30 东洋工程株式会社 尿素合成装置
EP1876171B1 (en) 2005-04-27 2011-12-07 Toyo Engineering Corporation Apparatus for urea synthesis and method of improving the same
EA019803B1 (ru) * 2006-12-08 2014-06-30 Стамикарбон Б.В. Способ получения мочевины
EP2399669A1 (en) 2010-06-24 2011-12-28 Borealis Agrolinz Melamine GmbH Horizontal high-pressure melamine reactor
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
GB2530447B (en) 2013-05-28 2020-02-26 Toyo Engineering Corp Urea synthesis method
EP3248962A1 (de) * 2016-05-24 2017-11-29 Linde Aktiengesellschaft Prozess und anlagenverbund zur herstellung von harnstoff
JP6862612B2 (ja) 2017-10-27 2021-04-21 スタミカーボン・ベー・フェー 高圧カルバメート凝縮器
WO2021170391A1 (en) 2020-02-25 2021-09-02 Casale Sa Process and plant for the synthesis of urea

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL164328C (nl) * 1970-04-02 1980-12-15 Stamicarbon Werkwijze voor het verhogen van de weerstand tegen cor- rosie van austenitische chroom-nikkelstalen, alsmede werkwijze voor de bereiding van ureum in apperatuur waarvan de weerstand tegen corrosie aldus is verhoogd.
US4173615A (en) * 1974-07-08 1979-11-06 Mitsui Toatsu Chemicals, Incorporated Chemical apparatus for corrosive materials
US5223238A (en) * 1992-01-16 1993-06-29 The M. W. Kellogg Company Method for treating ammonia and urea condensates
ZA96686B (en) * 1995-02-01 1996-08-16 Urea Casale Sa Process and plant for the production of urea with high conversion yield and low energy consumption
IT1274362B (it) * 1995-02-16 1997-07-17 Snam Progetti Procedimento ad alta resa per la sintesi dell'urea
JPH08291130A (ja) * 1995-04-25 1996-11-05 Toyo Eng Corp 尿素製造方法
JPH08301834A (ja) * 1995-05-02 1996-11-19 Toyo Eng Corp 尿素の合成方法
JPH08301835A (ja) * 1995-05-09 1996-11-19 Toyo Eng Corp 尿素合成方法
JPH08311008A (ja) * 1995-05-16 1996-11-26 Toyo Eng Corp 尿素製造方法
JPH08325222A (ja) * 1995-06-02 1996-12-10 Toyo Eng Corp 尿素の製造方法
JPH08325221A (ja) * 1995-06-02 1996-12-10 Toyo Eng Corp 尿素製造方法
US5523483A (en) * 1995-06-16 1996-06-04 The M. W. Kellogg Company Integrated urea/ammonia process
IT1275451B (it) * 1995-06-30 1997-08-07 Snam Progetti Procedimento per la sintesi dell'urea comprendente due separate zone di reazione
US5744009A (en) * 1995-07-07 1998-04-28 The M. W. Kellogg Company Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator
EP0822181B1 (en) * 1996-08-01 2001-05-02 Urea Casale S.A. Process and plant for the production of urea with high conversion yield and low energy consumption
JP3987607B2 (ja) * 1996-10-07 2007-10-10 東洋エンジニアリング株式会社 改良された尿素合成方法および装置
JPH10120643A (ja) * 1996-10-24 1998-05-12 Toyo Eng Corp 改良された尿素合成方法

Also Published As

Publication number Publication date
DE69829556D1 (de) 2005-05-04
UA57064C2 (ru) 2003-06-16
CN1071742C (zh) 2001-09-26
CN1242763A (zh) 2000-01-26
EP0976724B1 (en) 2005-03-30
EP0976724A1 (en) 2000-02-02
CA2268974A1 (en) 1999-06-18
WO1999031053A1 (en) 1999-06-24
BR9806081B1 (pt) 2010-07-27
ES2238777T3 (es) 2005-09-01
DE69829556T2 (de) 2005-08-18
EP0976724A4 (en) 2001-04-18
JPH11180942A (ja) 1999-07-06
JP4112056B2 (ja) 2008-07-02
BR9806081A (pt) 1999-08-24
US6093850A (en) 2000-07-25
EA001299B1 (ru) 2000-12-25
ID23791A (id) 2000-05-11
CA2268974C (en) 2003-07-08

Similar Documents

Publication Publication Date Title
EA199900753A1 (ru) Усовершенствованный способ синтеза мочевины и устройство для его осуществления
KR830005553A (ko) 냉동정화 시스템
BR9704118A (pt) Condensador com um receptor de lìquido
EA200200338A1 (ru) Устройство и способ крепления первой трубы ко второй трубе
SE8403081L (sv) Anordning for membrandestillation
IN157071B (ru)
EA200100537A1 (ru) Способ получения чистого меламина
DK1148928T3 (da) Dehydrator med mekanisk dampkompression, indretning og fremgangsmåde til kemisk rensning af dampen
TR200003767T2 (tr) Olefin yönünden doymamış nitrillerin reküperasyonuna yönelik proses
AR001696A1 (es) Procedimiento para la condensación del ácido cianhídrico con un aldehído
TR199801855A2 (xx) At�k minimizasyonu ve �r�n geri kazan�m y�ntemi.
EA200301176A1 (ru) Способ, осуществляемый по методу фишера-тропша
MY117359A (en) Improved acrylonitrile recovery process
FR2619377B1 (fr) Procede de fabrication de la methyl-2 pentanediamine par hydrogenation du methyl-2 glutaronitrile
DK518684A (da) Fremgangsmaade til fremstilling af findelt kalksten
DK1135331T3 (da) Fremgangsmåde til udvinding af ammoniak fra spildevand der indeholder NH3
PT810410E (pt) Processo de gestao de uma reaccao termoquimica ou de uma adsorcao solido-gas
FR2835831B1 (fr) Procede de purification de l'acroleine
FR2738755B1 (fr) Dispositif pour fixer chimiquement les gaz d'echappement
LV11112A (lv) Nepartrauktas darbibas preses presejosas platnes sildisanas metode un ierice tas istenosanai
RU2069081C1 (ru) Способ очистки газа от кислых компонентов
DE69907223D1 (de) System zur rückgewinnung von dampf
DE59200176D1 (de) Dauerelastische Mehrzweckmasse und Verfahren zur deren Herstellung.
OHYA et al. Formation of Cyanide Ion or Cyanogen Chloride through the Cleavage of Aromatic Rings by Nitrous Acid or Chlorine. VII. On the Reaction of Aromatic Amino Acids with Hypochlorous Acid in the Presence of Ammonium Ion
RU1772552C (ru) Установка по очистке и утилизации дренажных газов

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ KG MD TJ

MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): BY KZ TM

MK4A Patent expired

Designated state(s): RU