ATE17473T1 - Verfahren zur wiedergewinnung von benutzbaren verbindungen aus harnstoffsynthese-anstroemungen. - Google Patents

Verfahren zur wiedergewinnung von benutzbaren verbindungen aus harnstoffsynthese-anstroemungen.

Info

Publication number: ATE17473T1
Authority: AT; Austria
Prior art keywords: urea; urea synthesis; synthesis flow; urea solution; aqueous urea
Prior art date: 1981-05-15

Application number

AT82200538T

Other languages

English (en)

Inventor

Adolphe Marie Douwes

Original Assignee

Unie Van Kunstmestfab Bv

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.)

1981-05-15

Filing date

1982-05-04

Publication date

1986-02-15

1982-05-04 Application filed by Unie Van Kunstmestfab Bv filed Critical Unie Van Kunstmestfab Bv

1986-02-15 Application granted granted Critical

1986-02-15 Publication of ATE17473T1 publication Critical patent/ATE17473T1/de

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)
Fertilizers (AREA)

AT82200538T 1981-05-15 1982-05-04 Verfahren zur wiedergewinnung von benutzbaren verbindungen aus harnstoffsynthese-anstroemungen. ATE17473T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL8102391A NL8102391A (nl)	1981-05-15	1981-05-15	Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding.
EP82200538A EP0066906B1 (de)	1981-05-15	1982-05-04	Verfahren zur Wiedergewinnung von benutzbaren Verbindungen aus Harnstoffsynthese-Anströmungen

Publications (1)

Publication Number	Publication Date
ATE17473T1 true ATE17473T1 (de)	1986-02-15

Family

ID=19837514

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT82200538T ATE17473T1 (de)	1981-05-15	1982-05-04	Verfahren zur wiedergewinnung von benutzbaren verbindungen aus harnstoffsynthese-anstroemungen.

Country Status (7)

Country	Link
US (1)	US4652678A (de)
EP (1)	EP0066906B1 (de)
JP (1)	JPS57193439A (de)
AT (1)	ATE17473T1 (de)
CA (1)	CA1189683A (de)
DE (1)	DE3268497D1 (de)
NL (1)	NL8102391A (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0302213A1 (de) *	1987-08-04	1989-02-08	Ammonia Casale S.A.	Verfahren zur Rückgewinnung von Harnstoff, der bei der Vakuumkonzentrierung mitgerissen wurde
US5139754A (en) *	1989-09-12	1992-08-18	Fuel Tech, Inc.	Catalytic/non-catalytic combination process for nitrogen oxides reduction
US5240688A (en) *	1990-08-01	1993-08-31	Fuel Tech Gmbh	Process for the in-line hydrolysis of urea
ATE121311T1 (de) *	1991-01-30	1995-05-15	Stadt Landshut Vertreten Durch	Verfahren zur rauchgasreinigung von feuerungsanlagen, insbesondere müllverbrennungsanlagen.
US5223238A (en) *	1992-01-16	1993-06-29	The M. W. Kellogg Company	Method for treating ammonia and urea condensates
US5316554A (en) *	1992-06-03	1994-05-31	Hansen Charles N	Method for processing crystalline ammonium carbamate
US6077491A (en) *	1997-03-21	2000-06-20	Ec&C Technologies	Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal
US6511644B1 (en)	2000-08-28	2003-01-28	The Chemithon Corporation	Method for removing contaminants in reactors
KR100398799B1 (ko) *	2001-04-04	2003-09-19	한화석유화학 주식회사	질소 함유 유기물을 포함하는 폐수의 처리공정
US6761868B2 (en) *	2001-05-16	2004-07-13	The Chemithon Corporation	Process for quantitatively converting urea to ammonia on demand
US20030211024A1 (en) *	2002-05-10	2003-11-13	Wojichowski David Lee	Methods of converting urea to ammonia for SCR, SNCR and flue gas conditioning
US6887449B2 (en) *	2002-11-21	2005-05-03	The Chemithon Corporation	Method of quantitatively producing ammonia from urea
DE10346519A1 (de) *	2003-10-02	2005-05-04	Uhde Gmbh	Verfahren zur Entfernung von Ammoniak und Staub aus einem Abgas, das bei der Herstellung von Düngemitteln anfällt
US20080267837A1 (en) *	2007-04-27	2008-10-30	Phelps Calvin E	Conversion of urea to reactants for NOx reduction
US20090148370A1 (en) *	2007-12-06	2009-06-11	Spencer Iii Herbert W	Process to produce ammonia from urea
US9586831B2 (en)	2014-06-09	2017-03-07	Wahlco, Inc.	Urea to ammonia process
PL3393627T3 (pl) *	2015-12-21	2020-05-18	Stamicarbon B.V.	Produkcja roztworu saletrzano-mocznikowego
JP6949693B2 (ja) *	2017-12-08	2021-10-13	東洋エンジニアリング株式会社	尿素、アンモニア及び二酸化炭素を含む水溶液の処理方法並びに処理設備
EP3782979A1 (de)	2019-08-20	2021-02-24	Yara International ASA	Herstellung einer harnstofflösung und anlage dafür
LU102914B1 (de) *	2022-02-18	2023-08-18	Thyssenkrupp Ind Solutions Ag	Optimierte Prozesskondensataufbereitung
EP4479375A1 (de)	2022-02-18	2024-12-25	thyssenkrupp Uhde GmbH	Optimierte prozesskondensataufbereitung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2854482A (en) *	1956-07-07	1958-09-30	Lonza Electric & Chem Works	Process for the manufacture of urea
US3025571A (en) *	1960-01-29	1962-03-20	Du Pont	Process for producing prilled urea of low biuret content
JPS5146120B2 (de) *	1973-08-22	1976-12-07
US3971390A (en) *	1974-06-03	1976-07-27	Sperry Rand Corporation	Stone trap for threshing and separating machine
CA1070930A (en) *	1974-09-30	1980-02-05	Philip F. Kaupas	Pollution control process for fertilizer plant
JPS5268129A (en) *	1975-12-05	1977-06-06	Mitsui Toatsu Chem Inc	Recovery of unreacted material and heat on urea synthesis
IT1068268B (it) *	1976-09-09	1985-03-21	Snam Progetti	Procedimento per la produzione di urea e purificazione delle acque
US4341640A (en) *	1976-09-27	1982-07-27	Standard Oil Company	Urea hydrolysis
IT1065422B (it) *	1976-12-23	1985-02-25	Snam Progetti	Processo ammoniaca-urea integrato per la produzione di urea
US4087513A (en) *	1977-08-12	1978-05-02	Olin Corporation	Method of hydrolyzing urea contained in waste water streams
IT1174366B (it) *	1978-07-24	1987-07-01	Ortu Francesco	Decompositore di carbammato per produzione industriale di urea

1981
- 1981-05-15 NL NL8102391A patent/NL8102391A/nl not_active Application Discontinuation
1982
- 1982-05-04 AT AT82200538T patent/ATE17473T1/de not_active IP Right Cessation
- 1982-05-04 EP EP82200538A patent/EP0066906B1/de not_active Expired
- 1982-05-04 DE DE8282200538T patent/DE3268497D1/de not_active Expired
- 1982-05-13 CA CA000402910A patent/CA1189683A/en not_active Expired
- 1982-05-14 JP JP57081330A patent/JPS57193439A/ja active Pending
1984
- 1984-10-10 US US06/659,307 patent/US4652678A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0066906A1 (de)	1982-12-15
US4652678A (en)	1987-03-24
NL8102391A (nl)	1982-12-01
EP0066906B1 (de)	1986-01-15
CA1189683A (en)	1985-07-02
DE3268497D1 (en)	1986-02-27
JPS57193439A (en)	1982-11-27

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Legal Events

Date	Code	Title	Description
1986-06-15	UEP	Publication of translation of european patent specification
1990-02-15	REN	Ceased due to non-payment of the annual fee