NL1007713C2 - Werkwijze voor de bereiding van ureum. - Google Patents

Werkwijze voor de bereiding van ureum. Download PDF

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Publication number
NL1007713C2
NL1007713C2 NL1007713A NL1007713A NL1007713C2 NL 1007713 C2 NL1007713 C2 NL 1007713C2 NL 1007713 A NL1007713 A NL 1007713A NL 1007713 A NL1007713 A NL 1007713A NL 1007713 C2 NL1007713 C2 NL 1007713C2
Authority
NL
Netherlands
Prior art keywords
carbamate
urea
pressure
stripper
stream
Prior art date
Application number
NL1007713A
Other languages
English (en)
Dutch (nl)
Inventor
Johannes Henricus Mennen
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
Application filed by Dsm Nv filed Critical Dsm Nv
Priority to NL1007713A priority Critical patent/NL1007713C2/nl
Priority to CNB988134055A priority patent/CN1158251C/zh
Priority to PCT/NL1998/000677 priority patent/WO1999029663A1/en
Priority to CA002312763A priority patent/CA2312763C/en
Priority to AU13541/99A priority patent/AU1354199A/en
Application granted granted Critical
Publication of NL1007713C2 publication Critical patent/NL1007713C2/nl
Priority to US09/586,606 priority patent/US6730811B1/en

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
    • C07C273/04—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)
NL1007713A 1997-12-05 1997-12-05 Werkwijze voor de bereiding van ureum. NL1007713C2 (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL1007713A NL1007713C2 (nl) 1997-12-05 1997-12-05 Werkwijze voor de bereiding van ureum.
CNB988134055A CN1158251C (zh) 1997-12-05 1998-11-30 尿素的制备方法
PCT/NL1998/000677 WO1999029663A1 (en) 1997-12-05 1998-11-30 Process for the preparation of urea
CA002312763A CA2312763C (en) 1997-12-05 1998-11-30 Process for the preparation of urea
AU13541/99A AU1354199A (en) 1997-12-05 1998-11-30 Process for the preparation of urea
US09/586,606 US6730811B1 (en) 1997-12-05 2000-06-02 Process for the preparation of urea

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1007713 1997-12-05
NL1007713A NL1007713C2 (nl) 1997-12-05 1997-12-05 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
NL1007713C2 true NL1007713C2 (nl) 1999-06-08

Family

ID=19766124

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1007713A NL1007713C2 (nl) 1997-12-05 1997-12-05 Werkwijze voor de bereiding van ureum.

Country Status (6)

Country Link
US (1) US6730811B1 (zh)
CN (1) CN1158251C (zh)
AU (1) AU1354199A (zh)
CA (1) CA2312763C (zh)
NL (1) NL1007713C2 (zh)
WO (1) WO1999029663A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA96686B (en) 1995-02-01 1996-08-16 Urea Casale Sa Process and plant for the production of urea with high conversion yield and low energy consumption
NL1013394C2 (nl) * 1999-10-26 2001-05-01 Dsm Nv Werkwijze voor de bereiding van ureum.
US7687041B2 (en) * 2008-02-27 2010-03-30 Kellogg Brown & Root Llc Apparatus and methods for urea production
BR112014026866B1 (pt) * 2012-05-03 2020-09-24 Stamicarbon B.V. Processo e aparelho para a produção de ureia a partir de amônia e dióxido de carbono
EA033176B1 (ru) * 2014-11-27 2019-09-30 Стамикарбон Б.В. Способ и установка для производства карбамидоаммониевого нитрата (uan)
EP3233792B1 (en) * 2014-12-18 2019-09-04 Stamicarbon B.V. Process for urea production
LT3452212T (lt) 2016-05-03 2020-04-10 Stamicarbon B.V. Karbamido gamyba su kontroliuojamu biuretu
AU2018366077B2 (en) * 2017-11-10 2021-07-08 Stamicarbon B.V. Urea production process and plant
JP7277672B2 (ja) 2019-12-30 2023-05-19 スタミカーボン・ベー・フェー 尿素仕上げからのアンモニア除去
CN111995592B (zh) * 2020-09-30 2024-02-06 四川金象赛瑞化工股份有限公司 一种尿素与三聚氰胺联产的方法和装置
WO2022260524A1 (en) 2021-06-11 2022-12-15 Stamicarbon B.V. Urea production with triple mp streams

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613696A (en) * 1984-05-19 1986-09-23 Umberto Zardi Process for urea production
EP0611753A1 (en) * 1993-01-07 1994-08-24 Urea Casale S.A. Improved process for urea production involving a carbon dioxide stripping step
EP0727414A1 (en) * 1995-02-16 1996-08-21 SNAMPROGETTI S.p.A. High yield process for urea synthesis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684194A (en) 1984-07-16 1987-08-04 Trw Inc. Zero insertion force connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613696A (en) * 1984-05-19 1986-09-23 Umberto Zardi Process for urea production
EP0611753A1 (en) * 1993-01-07 1994-08-24 Urea Casale S.A. Improved process for urea production involving a carbon dioxide stripping step
EP0727414A1 (en) * 1995-02-16 1996-08-21 SNAMPROGETTI S.p.A. High yield process for urea synthesis

Also Published As

Publication number Publication date
CA2312763A1 (en) 1999-06-17
WO1999029663A9 (en) 1999-10-28
WO1999029663A1 (en) 1999-06-17
AU1354199A (en) 1999-06-28
CN1158251C (zh) 2004-07-21
CN1284061A (zh) 2001-02-14
US6730811B1 (en) 2004-05-04
CA2312763C (en) 2008-02-12

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Legal Events

Date Code Title Description
PD2B A search report has been drawn up
SD Assignments of patents

Owner name: DSM IP ASSETS B.V.

Effective date: 20050915

TD Modifications of names of proprietors of patents

Owner name: KONINKLIJKE DSM N.V.

Effective date: 20050915

SD Assignments of patents

Effective date: 20100831

MM Lapsed because of non-payment of the annual fee

Effective date: 20160101