ES2180139T3 - Procedimiento para preparar urea. - Google Patents

Procedimiento para preparar urea.

Info

Publication number
ES2180139T3
ES2180139T3 ES98900772T ES98900772T ES2180139T3 ES 2180139 T3 ES2180139 T3 ES 2180139T3 ES 98900772 T ES98900772 T ES 98900772T ES 98900772 T ES98900772 T ES 98900772T ES 2180139 T3 ES2180139 T3 ES 2180139T3
Authority
ES
Spain
Prior art keywords
pressure
urea
melamine
procedure
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 - Lifetime
Application number
ES98900772T
Other languages
English (en)
Inventor
Wijck Julius Gerardus Theo Van
Jozef Hubert Meessen
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.)
Koninklijke DSM NV
Original Assignee
DSM NV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19764295&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2180139(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DSM NV filed Critical DSM NV
Application granted granted Critical
Publication of ES2180139T3 publication Critical patent/ES2180139T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C07C273/12—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 combined with the synthesis of melamine

Landscapes

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

Abstract

Procedimiento de preparación de urea, en el cual la corriente de gas que se libera durante la síntesis de melamina y que está compuesta esencialmente por amoniaco y dióxido de carbono, se utiliza para sintetizar urea; en dicho procedimiento, la corriente gaseosa que se origina de un procedimiento de obtención de melamina a alta presión y que está compuesta esencialmente por amoniaco y dióxido de carbono, se condensa a una presión virtualmente igual a la presión en el reactor de melamina; en dicho procedimiento se forma carbamato de amonio sustancialmente anhidro, después de lo cual dicho carbamato de amonio se alimenta a una sección de alta presión de una planta de extracción de urea.
ES98900772T 1997-01-29 1998-01-20 Procedimiento para preparar urea. Expired - Lifetime ES2180139T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1005118A NL1005118C2 (nl) 1997-01-29 1997-01-29 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
ES2180139T3 true ES2180139T3 (es) 2003-02-01

Family

ID=19764295

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98900772T Expired - Lifetime ES2180139T3 (es) 1997-01-29 1998-01-20 Procedimiento para preparar urea.

Country Status (16)

Country Link
US (1) US6111138A (es)
EP (1) EP0977731B1 (es)
JP (1) JP4063333B2 (es)
KR (1) KR100522226B1 (es)
CN (1) CN1119326C (es)
AT (1) ATE220392T1 (es)
AU (1) AU726205B2 (es)
CA (1) CA2279235C (es)
DE (1) DE69806475T2 (es)
ES (1) ES2180139T3 (es)
ID (1) ID22135A (es)
NL (1) NL1005118C2 (es)
NO (1) NO312545B1 (es)
PL (1) PL196634B1 (es)
TW (1) TW513396B (es)
WO (1) WO1998032731A1 (es)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6380385B1 (en) 1995-12-07 2002-04-30 Agrolinz Melanin Gmbh Process for the preparation of pure melamine
AT411830B (de) 1998-12-03 2004-06-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von harnstoff unter einbindung der melamin-offgase in eine harnstoffanlage
NL1014280C2 (nl) * 2000-02-03 2001-08-06 Dsm Nv Werkwijze voor de bereiding van melamine uit ureum.
NL1021637C2 (nl) * 2002-07-29 2004-01-30 Dsm Nv Werkwijze voor het vergroten van de capaciteit van een ureumfabriek.
US8216170B2 (en) 2004-12-22 2012-07-10 Ossur Hf Orthopedic device
US8585623B2 (en) * 2004-12-22 2013-11-19 Ossur Hf Orthopedic device
US7794418B2 (en) * 2004-12-22 2010-09-14 Ossur Hf Knee brace and method for securing the same
US8231560B2 (en) * 2004-12-22 2012-07-31 Ossur Hf Orthotic device and method for securing the same
US7597675B2 (en) 2004-12-22 2009-10-06 össur hf Knee brace and method for securing the same
US8425441B2 (en) * 2004-12-22 2013-04-23 Ossur Hf Spacer element for use in an orthopedic or prosthetic device
US7713225B2 (en) 2004-12-22 2010-05-11 Ossur Hf Knee brace and method for securing the same
DE602005024680D1 (de) * 2005-08-10 2010-12-23 Urea Casale Sa Verfahren zur integrierten Herstellung von Harnstoff und Melamin
US7687041B2 (en) * 2008-02-27 2010-03-30 Kellogg Brown & Root Llc Apparatus and methods for urea production
EP3153500B1 (en) 2009-08-21 2019-03-06 Asahi Kasei Kabushiki Kaisha Method for producing isocyanate using n-substituted carbamic acid ester, and composition for transferring and storing n-substituted carbamic acid ester containing n-substituted carbamic acid ester and aromatic hydroxy compound
KR101389545B1 (ko) 2012-04-27 2014-05-30 제우스산업 주식회사 암모니아 가스를 재사용하여 글리세롤로부터 글리세롤 카보네이트를 제조하는 방법
WO2014078264A2 (en) 2012-11-13 2014-05-22 Ossur Hf Fastener member for affixation to a structure in an orthopedic device and method for securing the same
US9358146B2 (en) 2013-01-07 2016-06-07 Ossur Hf Orthopedic device and method for securing the same
US9375341B2 (en) 2013-01-31 2016-06-28 Ossur Hf Orthopedic device having detachable components for treatment stages and method for using the same
WO2014120393A1 (en) 2013-01-31 2014-08-07 Ossur Hf Progressive force strap assembly for use with an orthopedic device
US9498025B2 (en) 2013-04-08 2016-11-22 Ossur Hf Strap attachment system for orthopedic device
WO2016112110A1 (en) 2015-01-06 2016-07-14 Ossur Iceland Ehf Orthopedic device for treating osteoarthritis of the knee
US11234850B2 (en) 2016-06-06 2022-02-01 Ossur Iceland Ehf Orthopedic device, strap system and method for securing the same
US11850175B2 (en) 2016-06-06 2023-12-26 Ossur Iceland Ehf Orthopedic device, strap system and method for securing the same
WO2019071251A2 (en) 2017-10-06 2019-04-11 Ossur Iceland Ehf ORTHOPEDIC DEVICE FOR UNLOADING A KNEE
IT201800006795A1 (it) * 2018-06-29 2019-12-29 Procedimento di conversione diretta di off-gas anidri da impianti melammina in urea
USD908458S1 (en) 2018-10-08 2021-01-26 Ossur Iceland Ehf Hinge cover
USD888258S1 (en) 2018-10-08 2020-06-23 Ossur Iceland Ehf Connector assembly
USD882803S1 (en) 2018-10-08 2020-04-28 Ossur Iceland Ehf Orthopedic shell
US11872150B2 (en) 2020-12-28 2024-01-16 Ossur Iceland Ehf Sleeve and method for use with orthopedic device
US20240327358A1 (en) 2022-11-22 2024-10-03 Stamicarbon B.V. Coupled urea melamine plant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503970A (en) * 1967-07-19 1970-03-31 Mitsui Toatsu Chemicals Integrated process for producing urea and melamine
DE1770969C3 (de) * 1968-07-25 1978-08-24 Basf Ag, 6700 Ludwigshafen Verfahren zur Rückführung der Abgase der Melaminsynthese in die Hamstoffsynthese
JPS5022020B1 (es) * 1969-11-01 1975-07-28
US3723430A (en) * 1970-10-28 1973-03-27 Nissan Chemical Ind Ltd Method for reclamation of melamine waste gas
US4433146A (en) * 1982-04-07 1984-02-21 Stamicarbon B.V. Process for the preparation of melamine
NL8400839A (nl) * 1984-03-16 1985-10-16 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.

Also Published As

Publication number Publication date
ID22135A (id) 1999-09-09
CA2279235C (en) 2006-12-12
PL334875A1 (en) 2000-03-27
EP0977731B1 (en) 2002-07-10
DE69806475T2 (de) 2003-02-27
AU726205B2 (en) 2000-11-02
PL196634B1 (pl) 2008-01-31
KR100522226B1 (ko) 2005-10-17
NO312545B1 (no) 2002-05-27
CN1251088A (zh) 2000-04-19
WO1998032731A1 (en) 1998-07-30
JP2001509159A (ja) 2001-07-10
CA2279235A1 (en) 1998-07-30
DE69806475D1 (de) 2002-08-14
KR20000070500A (ko) 2000-11-25
JP4063333B2 (ja) 2008-03-19
CN1119326C (zh) 2003-08-27
ATE220392T1 (de) 2002-07-15
EP0977731A1 (en) 2000-02-09
NO993698D0 (no) 1999-07-29
AU5578898A (en) 1998-08-18
NL1005118C2 (nl) 1998-07-30
NO993698L (no) 1999-09-21
TW513396B (en) 2002-12-11
US6111138A (en) 2000-08-29

Similar Documents

Publication Publication Date Title
ES2180139T3 (es) Procedimiento para preparar urea.
MY129419A (en) Process for the preparation of urea
MY124851A (en) Process for the preparation of urea
EA200700288A1 (ru) Способ получения мочевины
CA2246217A1 (en) Process for combined production of ammonia and urea
NZ503287A (en) Process and plant for the simultaneous production of ammonia and urea
CA2312763A1 (en) Process for the preparation of urea
CA2361054A1 (en) Process for the preparation of urea
MX9600600A (es) Procedimiento de alto rendimiento para la sintesis de urea.
BG101710A (en) Method and production line for the production of urea having a high degree of conversion and low energy costs
RU2020127640A (ru) Установка синтеза меламина с использованием отходящего газа в присоединенной установке синтеза мочевины
MY140851A (en) Process for the preparation of urea
ES8301902A1 (es) Procedimiento para la produccion de urea
MXPA03005026A (es) Procedimiento para la preparacion de urea.
EA200300584A1 (ru) Способ получения мочевины
ES8303302A1 (es) "un procedimiento mejorado para la preparacion de urea".
UA81430C2 (en) Process and plant for the production of urea
TH29891B (th) กระบวนการสำหรับการเตรียมยูเรีย
TH32103B (th) กรรมวิธีการเตรียมยูเรีย
MY137155A (en) Process for preparing melamine
TH30626A (th) กระบวนการสำหรับการเตรียมยูเรีย