DE69806475T2 - Verfahren zur herstellung von harnstoff - Google Patents

Verfahren zur herstellung von harnstoff

Info

Publication number
DE69806475T2
DE69806475T2 DE69806475T DE69806475T DE69806475T2 DE 69806475 T2 DE69806475 T2 DE 69806475T2 DE 69806475 T DE69806475 T DE 69806475T DE 69806475 T DE69806475 T DE 69806475T DE 69806475 T2 DE69806475 T2 DE 69806475T2
Authority
DE
Germany
Prior art keywords
pressure
urea
melamine
ammonia
carbon dioxide
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
DE69806475T
Other languages
English (en)
Other versions
DE69806475D1 (de
Inventor
Wijck Gerardus Van
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.)
Stamicarbon BV
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=DE69806475(T2) "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
Publication of DE69806475D1 publication Critical patent/DE69806475D1/de
Application granted granted Critical
Publication of DE69806475T2 publication Critical patent/DE69806475T2/de
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)
DE69806475T 1997-01-29 1998-01-20 Verfahren zur herstellung von harnstoff Expired - Lifetime DE69806475T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005118A NL1005118C2 (nl) 1997-01-29 1997-01-29 Werkwijze voor de bereiding van ureum.
PCT/NL1998/000036 WO1998032731A1 (en) 1997-01-29 1998-01-20 Process for preparing urea

Publications (2)

Publication Number Publication Date
DE69806475D1 DE69806475D1 (de) 2002-08-14
DE69806475T2 true DE69806475T2 (de) 2003-02-27

Family

ID=19764295

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69806475T Expired - Lifetime DE69806475T2 (de) 1997-01-29 1998-01-20 Verfahren zur herstellung von harnstoff

Country Status (16)

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

Families Citing this family (29)

* 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
US8231560B2 (en) * 2004-12-22 2012-07-31 Ossur Hf Orthotic device 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
US8585623B2 (en) * 2004-12-22 2013-11-19 Ossur Hf Orthopedic device
US7713225B2 (en) * 2004-12-22 2010-05-11 Ossur Hf Knee brace and method for securing the same
US7597675B2 (en) * 2004-12-22 2009-10-06 össur hf Knee brace and method for securing the same
US7794418B2 (en) * 2004-12-22 2010-09-14 Ossur Hf Knee brace and method for securing the same
PL1752447T3 (pl) * 2005-08-10 2011-03-31 Urea Casale Sa Zintegrowany proces produkcji mocznika i melaminy
US7687041B2 (en) * 2008-02-27 2010-03-30 Kellogg Brown & Root Llc Apparatus and methods for urea production
JP5067906B2 (ja) 2009-08-21 2012-11-07 旭化成ケミカルズ株式会社 Ｎ−置換カルバミン酸エステルの製造方法および該ｎ−置換カルバミン酸エステルを使用するイソシアネートの製造方法
KR101389545B1 (ko) 2012-04-27 2014-05-30 제우스산업 주식회사 암모니아 가스를 재사용하여 글리세롤로부터 글리세롤 카보네이트를 제조하는 방법
EP2919603B1 (de) 2012-11-13 2016-09-21 Össur HF Befestigungselement zur befestigung an einer struktur in einer orthopädischen vorrichtung und verfahren zur befestigung davon
WO2014107697A2 (en) 2013-01-07 2014-07-10 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
WO2014168910A1 (en) 2013-04-08 2014-10-16 Ossur Hf Strap attachment system for orthopedic device
EP3242642B1 (de) 2015-01-06 2020-10-07 Ossur Iceland EHF Orthopädische vorrichtung zur behandlung von osteoarthritis des knies
US11850175B2 (en) 2016-06-06 2023-12-26 Ossur Iceland Ehf Orthopedic device, strap system and method for securing the same
US11234850B2 (en) 2016-06-06 2022-02-01 Ossur Iceland Ehf Orthopedic device, strap system and method for securing the same
US11547589B2 (en) 2017-10-06 2023-01-10 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
USD882803S1 (en) 2018-10-08 2020-04-28 Ossur Iceland Ehf Orthopedic shell
USD888258S1 (en) 2018-10-08 2020-06-23 Ossur Iceland Ehf Connector assembly
USD908458S1 (en) 2018-10-08 2021-01-26 Ossur Iceland Ehf Hinge cover
WO2022146806A1 (en) 2020-12-28 2022-07-07 Ossur Iceland Ehf Sleeve and method for use with orthopedic device

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 (de) * 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
CA2279235C (en) 2006-12-12
JP4063333B2 (ja) 2008-03-19
NO993698L (no) 1999-09-21
KR20000070500A (ko) 2000-11-25
US6111138A (en) 2000-08-29
ATE220392T1 (de) 2002-07-15
DE69806475D1 (de) 2002-08-14
KR100522226B1 (ko) 2005-10-17
CA2279235A1 (en) 1998-07-30
WO1998032731A1 (en) 1998-07-30
EP0977731A1 (de) 2000-02-09
NL1005118C2 (nl) 1998-07-30
ES2180139T3 (es) 2003-02-01
AU726205B2 (en) 2000-11-02
CN1119326C (zh) 2003-08-27
EP0977731B1 (de) 2002-07-10
NO312545B1 (no) 2002-05-27
PL334875A1 (en) 2000-03-27
NO993698D0 (no) 1999-07-29
CN1251088A (zh) 2000-04-19
TW513396B (en) 2002-12-11
JP2001509159A (ja) 2001-07-10
PL196634B1 (pl) 2008-01-31
AU5578898A (en) 1998-08-18
ID22135A (id) 1999-09-09

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: DSM IP ASSETS B.V., HEERLEN, NL

8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: STAMICARBON B.V., SITTARD, NL