DE3109744C2 - Verfahren zum Abstreifen von nicht-umgesetzten Materialien im Harnstoffsyntheseverfahren - Google Patents
Verfahren zum Abstreifen von nicht-umgesetzten Materialien im HarnstoffsyntheseverfahrenInfo
- Publication number
- DE3109744C2 DE3109744C2 DE3109744A DE3109744A DE3109744C2 DE 3109744 C2 DE3109744 C2 DE 3109744C2 DE 3109744 A DE3109744 A DE 3109744A DE 3109744 A DE3109744 A DE 3109744A DE 3109744 C2 DE3109744 C2 DE 3109744C2
- Authority
- DE
- Germany
- Prior art keywords
- urea synthesis
- stripping
- carbon dioxide
- urea
- ammonia
- 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.)
- Expired - Fee Related
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)
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 |
---|---|
DE3109744A1 DE3109744A1 (de) | 1982-01-07 |
DE3109744C2 true DE3109744C2 (de) | 1994-03-03 |
Family
ID=12316399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3109744A Expired - Fee Related DE3109744C2 (de) | 1980-03-13 | 1981-03-13 | Verfahren zum Abstreifen von nicht-umgesetzten Materialien im Harnstoffsyntheseverfahren |
Country Status (10)
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3364579D1 (en) * | 1982-06-03 | 1986-08-28 | Montedison Spa | 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 |
ATE37868T1 (de) * | 1984-05-19 | 1988-10-15 | Ammonia Casale Sa | Verfahren zur herstellung von harnstoff. |
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 |
US20060289003A1 (en) * | 2004-08-20 | 2006-12-28 | Lackner Klaus S | Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use |
US20070187247A1 (en) * | 2005-07-20 | 2007-08-16 | Lackner Klaus S | Electrochemical methods and processes for carbon dioxide recovery from alkaline solvents for carbon dioxide capture from air |
CN102160957A (zh) * | 2005-07-28 | 2011-08-24 | 乞力马扎罗能量公司 | 从空气中除去二氧化碳 |
US9266051B2 (en) | 2005-07-28 | 2016-02-23 | Carbon Sink, Inc. | Removal of carbon dioxide from air |
AU2007233275B2 (en) | 2006-03-08 | 2012-07-26 | Carbon Sink, Inc. | Air collector with functionalized ion exchange membrane for capturing ambient CO2 |
KR20090086530A (ko) * | 2006-10-02 | 2009-08-13 | 글로벌 리서치 테크놀로지스, 엘엘씨 | 공기로부터 이산화탄소를 추출하는 방법 및 장치 |
US20100095842A1 (en) * | 2006-11-15 | 2010-04-22 | Lackner Klaus S | Removal of carbon dioxide from air |
US8715393B2 (en) | 2007-04-17 | 2014-05-06 | Kilimanjaro Energy, Inc. | Capture of carbon dioxide (CO2) from air |
AU2008326313A1 (en) * | 2007-11-20 | 2009-05-28 | Global Research Technologies, Llc | Air collector with functionalized ion exchange membrane for capturing ambient CO2 |
CA2715874C (en) | 2008-02-19 | 2019-06-25 | Global Research Technologies, Llc | 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 |
WO2010019608A1 (en) * | 2008-08-11 | 2010-02-18 | Global Research Technologies, Llc | Method and apparatus for removing ammonia from a gas stream |
WO2010019600A2 (en) * | 2008-08-11 | 2010-02-18 | Global Research Technologies, Llc | Method and apparatus for extracting carbon dioxide from air |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE620227A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 |
-
1980
- 1980-03-13 JP JP3089380A patent/JPS56128749A/ja active Granted
-
1981
- 1981-03-03 US US06/240,170 patent/US4321410A/en not_active Expired - Lifetime
- 1981-03-06 IN IN242/CAL/81A patent/IN153897B/en unknown
- 1981-03-09 IT IT20226/81A patent/IT1141993B/it active
- 1981-03-09 GB GB8107371A patent/GB2072170B/en not_active Expired
- 1981-03-12 BR BR8101467A patent/BR8101467A/pt not_active IP Right Cessation
- 1981-03-12 FR FR8104936A patent/FR2478089A1/fr active Granted
- 1981-03-12 CA CA000372862A patent/CA1150312A/en not_active Expired
- 1981-03-12 NL NL8101209A patent/NL8101209A/nl not_active Application Discontinuation
- 1981-03-13 DE DE3109744A patent/DE3109744C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2072170A (en) | 1981-09-30 |
FR2478089B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1983-02-04 |
GB2072170B (en) | 1984-09-26 |
IT1141993B (it) | 1986-10-08 |
IT8120226A0 (it) | 1981-03-09 |
JPS6234033B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-07-24 |
FR2478089A1 (fr) | 1981-09-18 |
JPS56128749A (en) | 1981-10-08 |
US4321410A (en) | 1982-03-23 |
BR8101467A (pt) | 1981-09-15 |
IN153897B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-08-25 |
CA1150312A (en) | 1983-07-19 |
DE3109744A1 (de) | 1982-01-07 |
NL8101209A (nl) | 1981-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: C07C273/04 |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |