JPS56128749A - Stripping of unreacted material in urea preparation process - Google Patents

Stripping of unreacted material in urea preparation process

Info

Publication number
JPS56128749A
JPS56128749A JP3089380A JP3089380A JPS56128749A JP S56128749 A JPS56128749 A JP S56128749A JP 3089380 A JP3089380 A JP 3089380A JP 3089380 A JP3089380 A JP 3089380A JP S56128749 A JPS56128749 A JP S56128749A
Authority
JP
Japan
Prior art keywords
urea
stripping
ammonia
liquid
gas
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
Application number
JP3089380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6234033B2 (https=
Inventor
Hiroshi Ono
Hidetsugu Fujii
Akito Fukui
Haruyuki Morikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
Original Assignee
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
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 Mitsui Toatsu Chemicals Inc, Toyo Engineering Corp filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP3089380A priority Critical patent/JPS56128749A/ja
Priority to US06/240,170 priority patent/US4321410A/en
Priority to IN242/CAL/81A priority patent/IN153897B/en
Priority to IT20226/81A priority patent/IT1141993B/it
Priority to GB8107371A priority patent/GB2072170B/en
Priority to CA000372862A priority patent/CA1150312A/en
Priority to NL8101209A priority patent/NL8101209A/nl
Priority to BR8101467A priority patent/BR8101467A/pt
Priority to FR8104936A priority patent/FR2478089A1/fr
Priority to DE3109744A priority patent/DE3109744C2/de
Publication of JPS56128749A publication Critical patent/JPS56128749A/ja
Publication of JPS6234033B2 publication Critical patent/JPS6234033B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP3089380A 1980-03-13 1980-03-13 Stripping of unreacted material in urea preparation process Granted JPS56128749A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP3089380A JPS56128749A (en) 1980-03-13 1980-03-13 Stripping of unreacted material in urea preparation process
US06/240,170 US4321410A (en) 1980-03-13 1981-03-03 Method of stripping unreacted materials in urea synthesis process
IN242/CAL/81A IN153897B (https=) 1980-03-13 1981-03-06
IT20226/81A IT1141993B (it) 1980-03-13 1981-03-09 Metodo per la separazione(stripping)di materiali non reagitti in un processo di sintesi di urea
GB8107371A GB2072170B (en) 1980-03-13 1981-03-09 Method of stripping unreacted materials in urea synthesis process
CA000372862A CA1150312A (en) 1980-03-13 1981-03-12 Method of stripping unreacted materials in urea synthesis process
NL8101209A NL8101209A (nl) 1980-03-13 1981-03-12 Werkwijze voor het verwijderen van niet-omgezette verbindingen bij de bereiding van ureum.
BR8101467A BR8101467A (pt) 1980-03-13 1981-03-12 Processo para extrair materiais nao reagidos no processo de sintese da ureia
FR8104936A FR2478089A1 (fr) 1980-03-13 1981-03-12 Procede d'extraction des materiaux n'ayant pas reagi dans la synthese de l'uree
DE3109744A DE3109744C2 (de) 1980-03-13 1981-03-13 Verfahren zum Abstreifen von nicht-umgesetzten Materialien im Harnstoffsyntheseverfahren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3089380A JPS56128749A (en) 1980-03-13 1980-03-13 Stripping of unreacted material in urea preparation process

Publications (2)

Publication Number Publication Date
JPS56128749A true JPS56128749A (en) 1981-10-08
JPS6234033B2 JPS6234033B2 (https=) 1987-07-24

Family

ID=12316399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3089380A Granted JPS56128749A (en) 1980-03-13 1980-03-13 Stripping of unreacted material in urea preparation process

Country Status (10)

Country Link
US (1) US4321410A (https=)
JP (1) JPS56128749A (https=)
BR (1) BR8101467A (https=)
CA (1) CA1150312A (https=)
DE (1) DE3109744C2 (https=)
FR (1) FR2478089A1 (https=)
GB (1) GB2072170B (https=)
IN (1) IN153897B (https=)
IT (1) IT1141993B (https=)
NL (1) NL8101209A (https=)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096151B1 (en) * 1982-06-03 1986-07-23 Montedison S.p.A. Method for avoiding the corrosion of strippers in urea manufacturing plants
NL187393C (nl) * 1982-11-26 1991-09-16 V I Kucheryavy T M Bogdanova D Werkwijze voor het bereiden van ureum.
IT1163795B (it) * 1983-07-18 1987-04-08 Montedison Spa Apparecchio per lo strippaggio dell'ammoniaca dalle soluzioni provenienti dalla sintesi dell'urea
DE3565532D1 (en) * 1984-05-19 1988-11-17 Ammonia Casale Sa Process for the preparation of urea
US5641401A (en) * 1993-04-29 1997-06-24 The Dow Chemical Company Sludge deodorization
US5635077A (en) 1993-04-29 1997-06-03 The Dow Chemical Company Ammonia removal
US5779861A (en) * 1993-09-03 1998-07-14 Farmland Industries, Inc. Method for treating process condensate
US5385646A (en) * 1993-09-03 1995-01-31 Farmland Industries, Inc. Method of treating chemical process effluent
US5643420A (en) * 1993-09-03 1997-07-01 Farmland Industries, Inc. Method for treating process condensate
US6464875B1 (en) 1999-04-23 2002-10-15 Gold Kist, Inc. Food, animal, vegetable and food preparation byproduct treatment apparatus and process
WO2006023743A2 (en) * 2004-08-20 2006-03-02 The Trustees Of Columbia University In The City Of New York Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use
WO2007018558A2 (en) * 2005-07-20 2007-02-15 The Trustees Of Columbia University In The City Of New York Electrochemical recovery of carbon dioxide from alkaline solvents
EP2409753B1 (en) * 2005-07-28 2017-07-19 Carbon Sink Inc. Removal of carbon dioxide from air
US9266051B2 (en) 2005-07-28 2016-02-23 Carbon Sink, Inc. Removal of carbon dioxide from air
RU2008139902A (ru) 2006-03-08 2010-04-20 ГЛОБАЛ РИСЕРЧ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Воздухозаборное устройство с функционализированной ионообменной мембраной для улавливания co2 из внешней среды
NZ575870A (en) * 2006-10-02 2012-02-24 Global Res Technologies Llc Method and apparatus for extracting carbon dioxide from ambient air
CA2669003A1 (en) * 2006-11-15 2008-05-22 Global Research Technologies, Llc Removal of carbon dioxide from air
US8715393B2 (en) 2007-04-17 2014-05-06 Kilimanjaro Energy, Inc. Capture of carbon dioxide (CO2) from air
US8262774B2 (en) * 2007-11-20 2012-09-11 Kilimanjaro Energy, Inc. Air collector with functionalized ion exchange membrane for capturing ambient CO2
CA3047633C (en) 2008-02-19 2023-08-01 Carbon Sink Inc. Extraction and sequestration of carbon dioxide
WO2009149292A1 (en) 2008-06-04 2009-12-10 Global Research Technologies, Llc Laminar flow air collector with solid sorbent materials for capturing ambient co2
US20110203174A1 (en) * 2008-08-11 2011-08-25 Lackner Klaus S Method and apparatus for extracting carbon dioxide from air
US20110206588A1 (en) * 2008-08-11 2011-08-25 Lackner Klaus S Method and apparatus for removing ammonia from a gas stream
WO2010022399A1 (en) * 2008-08-22 2010-02-25 Global Research Technologies, Llc Removal of carbon dioxide from air
WO2019161114A1 (en) 2018-02-16 2019-08-22 Carbon Sink, Inc. Fluidized bed extractors for capture of co2 from ambient air

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE620227A (https=) * 1961-07-14 1900-01-01
US3301897A (en) * 1965-11-08 1967-01-31 Chemical Construction Corp Process for urea synthesis
CH498811A (de) * 1967-05-22 1970-11-15 Chemical Construction Corp Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd
NL156686B (nl) * 1968-03-16 1978-05-16 Stamicarbon Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak.
JPS4919259B1 (https=) * 1969-08-30 1974-05-16
US3759992A (en) * 1970-06-29 1973-09-18 I Mavrovic Urea synthesis
US4088685A (en) * 1971-10-19 1978-05-09 Ivo Mavrovic Urea synthesis with improved heat recovery and conversion
BE790015A (fr) * 1971-10-19 1973-04-12 Mavrovic Ivo Synthese de l'uree avec conversion et recuperation de chaleur ameliorees
NL172539C (nl) * 1972-06-12 1983-09-16 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
US4256662A (en) * 1980-01-18 1981-03-17 Gorlovsky David M Process for producing urea

Also Published As

Publication number Publication date
JPS6234033B2 (https=) 1987-07-24
IN153897B (https=) 1984-08-25
DE3109744C2 (de) 1994-03-03
IT1141993B (it) 1986-10-08
FR2478089B1 (https=) 1983-02-04
CA1150312A (en) 1983-07-19
IT8120226A0 (it) 1981-03-09
GB2072170A (en) 1981-09-30
US4321410A (en) 1982-03-23
GB2072170B (en) 1984-09-26
NL8101209A (nl) 1981-10-01
FR2478089A1 (fr) 1981-09-18
DE3109744A1 (de) 1982-01-07
BR8101467A (pt) 1981-09-15

Similar Documents

Publication Publication Date Title
JPS56128749A (en) Stripping of unreacted material in urea preparation process
SE8404920L (sv) Metod att framstella dietentriamin
JPS5617918A (en) Manufacture of dichlorosilane
CA2226771A1 (en) Method for increasing the capacity of an existing urea process
JPS5653644A (en) Urea synthesis
GB1353653A (en) Urea synthesis
JPS5239626A (en) Separation and recovery process of unreacted material on urea synthesi s
GB1539009A (en) Process for preparing a urea solution from nh3 and co2
JPS5223572A (en) Folded screen type reactor
JPS5746954A (en) Synthesis of urea
JPS5375168A (en) Recovering method of ammonia
JPS55104247A (en) Improved preparation of azo compound
JPS5337647A (en) Preparation of imine compounds
BG33282A3 (en) Method for obtaining of 4- amino- 5- chlorine- 1- phenylpyridazon- (6)
JPS52105125A (en) Separation and recovery of unreacted material on urea synthesis
IT8221774A0 (it) Procedimento perfezionato per il trasferimento, dalla fase liquida alla fase gassosa, dell'ammoniaca in eccesso contenuta in soluzioni acquose di urea.
JPS54136598A (en) Production of ammonia
ES8306104A1 (es) "un procedimiento mejorado para la preparacion de urea".
JPS5212675A (en) Process of preventing clogging of evaporators using supersonic waves
JPS5353658A (en) Preparation of alkylpyridines
JPS537620A (en) Synthesis of d-penicillamine
KR830007530A (ko) 요소합성 공정에서 미반응 물질의 스트리핑 방법
JPS5412312A (en) Preparation of ketazine
JPS574955A (en) Reducing method of benzenediazonium sulfate
JPS57192357A (en) Preparation of ammonium sulfamate