DE69117641D1 - Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen - Google Patents

Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen

Info

Publication number: DE69117641D1
Authority: DE; Germany
Prior art keywords: urea; reactor; implementation; production; well
Prior art date: 1990-10-05
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.): Revoked

Application number

DE69117641T

Other languages

English (en)

Other versions

DE69117641T2 (de

Inventor

Giorgio Pagani

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.)

Casale SA

Original Assignee

Urea Casale SA

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.)

1990-10-05

Filing date

1991-09-25

Publication date

1996-04-11

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25692477&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69117641(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1991-09-25 Application filed by Urea Casale SA filed Critical Urea Casale SA

1996-04-11 Application granted granted Critical

1996-04-11 Publication of DE69117641D1 publication Critical patent/DE69117641D1/de

1996-10-02 Publication of DE69117641T2 publication Critical patent/DE69117641T2/de

2011-09-26 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

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
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

DE69117641T 1990-10-05 1991-09-25 Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen Revoked DE69117641T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH321690		1990-10-05
US08/041,944 US5403956A (en)	1990-10-05	1993-04-02	Process for urea production

Publications (2)

Publication Number	Publication Date
DE69117641D1 true DE69117641D1 (de)	1996-04-11
DE69117641T2 DE69117641T2 (de)	1996-10-02

Family

ID=25692477

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69117641T Revoked DE69117641T2 (de)	1990-10-05	1991-09-25	Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen

Country Status (7)

Country	Link
US (3)	US5403956A (de)
EP (1)	EP0479103B1 (de)
CN (1)	CN1052975C (de)
AT (1)	ATE134994T1 (de)
DE (1)	DE69117641T2 (de)
LT (1)	LT3607B (de)
RU (1)	RU2040518C1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ATE134994T1 (de) *	1990-10-05	1996-03-15	Urea Casale Sa	Verfahren zur herstellung von harnstoff mit unterschiedlichen leistungen sowie die implementierung in existierenden anlagen
US6150555A (en) *	1992-05-08	2000-11-21	Urea Casale, S.A.	Process for urea production
US6274767B1 (en) *	1992-11-19	2001-08-14	Urea Casale, S.A.	Process for the revamping of urea synthesis plants consisting of a stripper with ammonia
EP0611753B1 (de) *	1993-01-07	1999-10-27	Urea Casale S.A.	Verbessertes Verfahren zur Produktion von Harnstoff unter Verwendung eines Schrittes zur Kohlendioxidentfernung
US5523482A (en) *	1993-05-14	1996-06-04	Urea Casale S.A.	Process and plant for the production of urea in reaction spaces with different yields
CA2141886E (en)	1994-05-11	1999-10-12	Federico Zardi	Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature
WO1996020170A1 (en) *	1994-12-23	1996-07-04	Urea Casale S.A.	Process and plant for urea production with reaction spaces having differentiated yields
IT1274362B (it) *	1995-02-16	1997-07-17	Snam Progetti	Procedimento ad alta resa per la sintesi dell'urea
ES2158232T3 (es) *	1996-08-01	2001-09-01	Urea Casale Sa	Procedimiento y planta para la produccion de urea con alto rendimiento de conversion y bajo consumo de energia.
US6231632B1 (en)	1999-05-25	2001-05-15	Engelhard Corporation	Urea processing agent
US7687041B2 (en) *	2008-02-27	2010-03-30	Kellogg Brown & Root Llc	Apparatus and methods for urea production
EP2784062A1 (de) *	2013-03-27	2014-10-01	Urea Casale SA	Verfahren zur Modernisierung einer selbst-strippenden Harnstoffanlage
EP3766865A1 (de) *	2019-07-18	2021-01-20	Casale Sa	Verfahren zur synthese von harnstoff

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1942120A (en) *	1930-07-17	1934-01-02	Standard Oil Co	Hydrogenation system
US3049563A (en) *	1957-04-05	1962-08-14		Sxpaf
US3091637A (en) *	1960-05-17	1963-05-28	Chemical Construction Corp	Dual cycle urea synthesis process
US3222040A (en) *	1962-06-25	1965-12-07	John S Eckert	Support plate for packed tower
GB1124547A (en) *	1966-05-02	1968-08-21	Toyo Koatsu Ind Inc	Production of urea
GB1217560A (en) *	1967-07-31	1970-12-31	Mitsui Toatsu Chemicals	Synthesis of urea
US4088686A (en) *	1976-01-21	1978-05-09	Ivo Mavrovic	Urea synthesis with improved heat recovery and conversion
JPS5750954A (en) *	1980-09-12	1982-03-25	Mitsui Toatsu Chem Inc	Synthesis of urea
IT1211125B (it) *	1981-10-16	1989-09-29	Ortu Francesco	Composti azotati. processo per la preparazione di
US4929399A (en) *	1988-03-17	1990-05-29	Union Carbide Industrial Gases Technology Inc.	Structured column packing with liquid holdup
IT1240675B (it)	1990-04-24	1993-12-17	Snam Progetti	Procedimento per la concentrazione sotto vuoto di soluzioni di urea
ATE134994T1 (de) *	1990-10-05	1996-03-15	Urea Casale Sa	Verfahren zur herstellung von harnstoff mit unterschiedlichen leistungen sowie die implementierung in existierenden anlagen
US5276183A (en) *	1991-01-29	1994-01-04	Urea Casale S.A.	Process and plant for the production of urea
IT1245396B (it) *	1991-03-22	1994-09-20	Snam Progetti	Procedimento per la produzione di urea ad elevata efficienza energetica
EP0544056B1 (de) *	1991-11-14	1998-06-24	Urea Casale S.A.	Verfahren zur Herstellung von Harnstoff mit Reaktionsräumen unterschiedlicher Ausbeuten

1991
- 1991-09-25 AT AT91116297T patent/ATE134994T1/de not_active IP Right Cessation
- 1991-09-25 EP EP91116297A patent/EP0479103B1/de not_active Revoked
- 1991-09-25 DE DE69117641T patent/DE69117641T2/de not_active Revoked
- 1991-10-04 RU SU915001892A patent/RU2040518C1/ru active
- 1991-10-04 CN CN91110664A patent/CN1052975C/zh not_active Expired - Fee Related
1993
- 1993-04-02 US US08/041,944 patent/US5403956A/en not_active Expired - Lifetime
- 1993-09-17 LT LTIP996A patent/LT3607B/lt not_active IP Right Cessation
1994
- 1994-12-12 US US08/354,482 patent/US5580236A/en not_active Expired - Lifetime
1995
- 1995-06-07 US US08/478,693 patent/US5573735A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US5403956A (en)	1995-04-04
RU2040518C1 (ru)	1995-07-25
LTIP996A (en)	1995-04-25
US5580236A (en)	1996-12-03
CN1065060A (zh)	1992-10-07
ATE134994T1 (de)	1996-03-15
US5573735A (en)	1996-11-12
CN1052975C (zh)	2000-05-31
DE69117641T2 (de)	1996-10-02
LT3607B (en)	1995-12-27
EP0479103A1 (de)	1992-04-08
EP0479103B1 (de)	1996-03-06

Publication	Publication Date	Title
DE69117641D1 (de)	1996-04-11	Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen
ES462234A1 (es)	1978-06-01	Procedimiento para la produccion de urea con purificacion delas aguas obtenidas.
BR8501156A (pt)	1985-11-12	Processo para a preparacao de ureia,e ureia e solucoes de ureia assim obtidas
CA2063638A1 (en)	1992-09-23	Urea production process of high energy efficiency
DE69601963D1 (de)	1999-05-12	Verfahren mit hoher Ausbeute zur Herstellung von Harnstoff
ATE179413T1 (de)	1999-05-15	Verfahren und anlage zur herstellung von harnstoff mit hohem umsatz und niedrigem energieverbrauch
KR840001131A (ko)	1984-03-28	요소 제조 방법
DE69226010D1 (de)	1998-07-30	Verfahren zur Herstellung von Harnstoff mit Reaktionsräumen unterschiedlicher Ausbeuten
US3816528A (en)	1974-06-11	Urea synthesis process
ES2033175A1 (es)	1993-03-01	Obtencion en continuo de sales fertilizantes con derivados de estroncio y yeso.
IE35308L (en)	1971-10-02	Urea production
ATE33132T1 (de)	1988-04-15	Verfahren zur herstellung von harnstoff.
GB1509950A (en)	1978-05-10	Urea manufacture
MXPA02012329A (es)	2003-04-25	Proceso y planta para la produccion de urea.
US4092358A (en)	1978-05-30	Process for the production of urea having a low carbamate content
IE33879B1 (en)	1974-11-27	Improvements in or relating to the production of urea
ATE200897T1 (de)	2001-05-15	Verfahren und anlage zur herstellung von harnstoff mit hohem umwandlungsgrad und niedrigem energieverbrauch
ES8306104A1 (es)	1983-05-01	"un procedimiento mejorado para la preparacion de urea".
ATE160766T1 (de)	1997-12-15	Herstellung von perchlorethylen aus tetrachlorkohlenstoff in anwesenheit von wasserstoff
SU763331A1 (ru)	1980-09-15	Способ получени мочевины
MX9704694A (es)	1998-10-31	Proceso y planta para la produccion de urea con espacios de reaccion que tienen rendimientos diferenciados.

Legal Events

Date	Code	Title	Description
1997-03-06	8363	Opposition against the patent
2003-04-03	8331	Complete revocation