IT8120226A0 - Metodo per la separazione(stripping)di materiali non reagiti in un processo disintesi di urea. - Google Patents
Metodo per la separazione(stripping)di materiali non reagiti in un processo disintesi di urea.Info
- Publication number
- IT8120226A0 IT8120226A0 IT8120226A IT2022681A IT8120226A0 IT 8120226 A0 IT8120226 A0 IT 8120226A0 IT 8120226 A IT8120226 A IT 8120226A IT 2022681 A IT2022681 A IT 2022681A IT 8120226 A0 IT8120226 A0 IT 8120226A0
- Authority
- IT
- Italy
- Prior art keywords
- dissynthesis
- stripping
- urea
- separation
- unreacted materials
- Prior art date
Links
- 238000000034 method Methods 0.000 title 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- 238000000926 separation method Methods 0.000 title 1
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 |
---|---|
IT8120226A0 true IT8120226A0 (it) | 1981-03-09 |
IT1141993B IT1141993B (it) | 1986-10-08 |
Family
ID=12316399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (10)
Country | Link |
---|---|
US (1) | US4321410A (it) |
JP (1) | JPS56128749A (it) |
BR (1) | BR8101467A (it) |
CA (1) | CA1150312A (it) |
DE (1) | DE3109744C2 (it) |
FR (1) | FR2478089A1 (it) |
GB (1) | GB2072170B (it) |
IN (1) | IN153897B (it) |
IT (1) | IT1141993B (it) |
NL (1) | NL8101209A (it) |
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. |
US5635077A (en) | 1993-04-29 | 1997-06-03 | The Dow Chemical Company | Ammonia removal |
US5641401A (en) * | 1993-04-29 | 1997-06-24 | The Dow Chemical Company | Sludge deodorization |
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 |
CA2644676C (en) | 2006-03-08 | 2015-02-10 | Global Research Technologies, Llc | Air collector with functionalized ion exchange membrane for capturing ambient co2 |
US7708806B2 (en) * | 2006-10-02 | 2010-05-04 | Global Research Technologies, Llc | Method and apparatus for extracting carbon dioxide from air |
CA2669003A1 (en) * | 2006-11-15 | 2008-05-22 | Global Research Technologies, Llc | Removal of carbon dioxide from air |
AU2008242845B2 (en) | 2007-04-17 | 2012-08-23 | Carbon Sink, Inc. | Capture of carbon dioxide (CO2) from air |
CA2703551A1 (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 |
US8999279B2 (en) | 2008-06-04 | 2015-04-07 | Carbon Sink, Inc. | Laminar flow air collector with solid sorbent materials for capturing ambient CO2 |
WO2010019600A2 (en) * | 2008-08-11 | 2010-02-18 | Global Research Technologies, Llc | 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 |
US20110203311A1 (en) * | 2008-08-22 | 2011-08-25 | Wright Allen B | 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 |
---|---|---|---|---|
NL130984C (it) * | 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 (it) * | 1969-08-30 | 1974-05-16 | ||
US3759992A (en) * | 1970-06-29 | 1973-09-18 | I Mavrovic | Urea synthesis |
BE790015A (fr) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | Synthese de l'uree avec conversion et recuperation de chaleur ameliorees |
US4088685A (en) * | 1971-10-19 | 1978-05-09 | Ivo Mavrovic | Urea synthesis with improved heat recovery and conversion |
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 GB GB8107371A patent/GB2072170B/en not_active Expired
- 1981-03-09 IT IT20226/81A patent/IT1141993B/it active
- 1981-03-12 CA CA000372862A patent/CA1150312A/en not_active Expired
- 1981-03-12 BR BR8101467A patent/BR8101467A/pt not_active IP Right Cessation
- 1981-03-12 NL NL8101209A patent/NL8101209A/nl not_active Application Discontinuation
- 1981-03-12 FR FR8104936A patent/FR2478089A1/fr active Granted
- 1981-03-13 DE DE3109744A patent/DE3109744C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2478089A1 (fr) | 1981-09-18 |
GB2072170B (en) | 1984-09-26 |
JPS56128749A (en) | 1981-10-08 |
DE3109744C2 (de) | 1994-03-03 |
CA1150312A (en) | 1983-07-19 |
US4321410A (en) | 1982-03-23 |
IN153897B (it) | 1984-08-25 |
DE3109744A1 (de) | 1982-01-07 |
GB2072170A (en) | 1981-09-30 |
BR8101467A (pt) | 1981-09-15 |
NL8101209A (nl) | 1981-10-01 |
IT1141993B (it) | 1986-10-08 |
FR2478089B1 (it) | 1983-02-04 |
JPS6234033B2 (it) | 1987-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970329 |