JP2001509159A - 尿素製造方法 - Google Patents
尿素製造方法Info
- Publication number
- JP2001509159A JP2001509159A JP53185498A JP53185498A JP2001509159A JP 2001509159 A JP2001509159 A JP 2001509159A JP 53185498 A JP53185498 A JP 53185498A JP 53185498 A JP53185498 A JP 53185498A JP 2001509159 A JP2001509159 A JP 2001509159A
- Authority
- JP
- Japan
- Prior art keywords
- urea
- pressure
- melamine
- reactor
- carbamate
- 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.)
- Granted
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
Description
Claims (1)
- 【特許請求の範囲】 1.メラミン合成の間に放出されかつアンモニアと二酸化炭素から本質的に成る ガス流を使用して尿素を合成するところの尿素製造方法において、高圧メラミン プロセスから発生しかつアンモニアと二酸化炭素から本質的に成るガス流が、メ ラミン反応器における圧力と実質的に等しい圧力において凝縮され、ここで、実 質的に無水のカルバミン酸アンモニウムが形成され、その後、該カルバミン酸ア ンモニウムが尿素ストリッピングプラントの高圧部に供給されることを特徴とす る方法。 2.高圧メラミンプロセスから発生する上記カルバメート流が、尿素反応器、ス トリッパー、高圧カルバメートコンデンサー又はこれらの間に存在する配管に供 給されることを特徴とする請求項1記載の方法。 3.尿素プラントにおける合成反応器が、160〜220℃の温度で操作される ことを特徴とする請求項1又は2記載の方法。 4.尿素プラントにおける合成反応器が、12.5〜17.5MPaの圧力で操作 されることを特徴とする請求項1〜3のいずれか一つに記載の方法。 5.メラミンプロセスから放出されるカルバメート流が、140〜200℃の温 度であることを特徴とする請求項1〜4のいずれか一つに記載の方法。 6.メラミンプロセスから放出されるカルバメート流が、8〜40MPaの圧力で あることを特徴とする請求項1〜5のいずれか一つに記載の方法。 7.メラミンプロセスから放出されるカルバメート流が、尿素反応器の圧力より 0〜10MPa高い圧力を有することを特徴とする請求項6記載の方法。 8.メラミンプロセスから放出されるカルバメート流が、尿素反応器の圧力より 0〜2MPa高い圧力を有することを特徴とする請求項7記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005118A NL1005118C2 (nl) | 1997-01-29 | 1997-01-29 | Werkwijze voor de bereiding van ureum. |
NL1005118 | 1997-01-29 | ||
PCT/NL1998/000036 WO1998032731A1 (en) | 1997-01-29 | 1998-01-20 | Process for preparing urea |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001509159A true JP2001509159A (ja) | 2001-07-10 |
JP4063333B2 JP4063333B2 (ja) | 2008-03-19 |
Family
ID=19764295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53185498A Expired - Fee Related JP4063333B2 (ja) | 1997-01-29 | 1998-01-20 | 尿素製造方法 |
Country Status (16)
Country | Link |
---|---|
US (1) | US6111138A (ja) |
EP (1) | EP0977731B1 (ja) |
JP (1) | JP4063333B2 (ja) |
KR (1) | KR100522226B1 (ja) |
CN (1) | CN1119326C (ja) |
AT (1) | ATE220392T1 (ja) |
AU (1) | AU726205B2 (ja) |
CA (1) | CA2279235C (ja) |
DE (1) | DE69806475T2 (ja) |
ES (1) | ES2180139T3 (ja) |
ID (1) | ID22135A (ja) |
NL (1) | NL1005118C2 (ja) |
NO (1) | NO312545B1 (ja) |
PL (1) | PL196634B1 (ja) |
TW (1) | TW513396B (ja) |
WO (1) | WO1998032731A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005534688A (ja) * | 2002-07-29 | 2005-11-17 | ディーエスエム アイピー アセッツ ビー.ブイ. | 尿素プラントの容量を増加する方法 |
Families Citing this family (29)
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. |
US7713225B2 (en) * | 2004-12-22 | 2010-05-11 | Ossur Hf | Knee brace and method for securing the same |
US8585623B2 (en) * | 2004-12-22 | 2013-11-19 | Ossur Hf | Orthopedic device |
US8231560B2 (en) * | 2004-12-22 | 2012-07-31 | Ossur Hf | Orthotic device and method for securing the same |
US8216170B2 (en) | 2004-12-22 | 2012-07-10 | Ossur Hf | Orthopedic device |
US7794418B2 (en) * | 2004-12-22 | 2010-09-14 | Ossur 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 |
US7597675B2 (en) * | 2004-12-22 | 2009-10-06 | össur 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 |
EA030865B1 (ru) | 2009-08-21 | 2018-10-31 | Асахи Касеи Кемикалз Корпорейшн | Способ получения сложного эфира n-замещенной карбаминовой кислоты, способ получения изоцианата с применением такого сложного эфира n-замещенной карбаминовой кислоты и композиция для транспортировки и хранения сложного эфира n-замещенной карбаминовой кислоты, содержащая сложный эфир n-замещенной карбаминовой кислоты и ароматическое гидроксисоединение |
KR101389545B1 (ko) | 2012-04-27 | 2014-05-30 | 제우스산업 주식회사 | 암모니아 가스를 재사용하여 글리세롤로부터 글리세롤 카보네이트를 제조하는 방법 |
CN104981173B (zh) | 2012-11-13 | 2017-06-27 | 奥索有限责任公司 | 附接至矫形装置中的结构的紧固件构件和固定其的方法 |
US9358146B2 (en) | 2013-01-07 | 2016-06-07 | Ossur Hf | Orthopedic device and method for securing the same |
WO2014120393A1 (en) | 2013-01-31 | 2014-08-07 | Ossur Hf | Progressive force strap assembly for use with an orthopedic device |
WO2014121095A1 (en) | 2013-01-31 | 2014-08-07 | Ossur Hf | Orthopedic device having detachable components for treatment stages and method for using the same |
WO2014168910A1 (en) | 2013-04-08 | 2014-10-16 | Ossur Hf | Strap attachment system for orthopedic device |
EP3242642B1 (en) | 2015-01-06 | 2020-10-07 | Ossur Iceland EHF | Orthopedic device for treating osteoarthritis of the knee |
US11253384B2 (en) | 2016-06-06 | 2022-02-22 | 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 |
US11712359B2 (en) | 2017-10-06 | 2023-08-01 | Ossur Iceland Ehf | Connector for an orthopedic device |
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 |
WO2024112196A1 (en) | 2022-11-22 | 2024-05-30 | Stamicarbon B.V. | Coupled urea melamine plant |
Family Cites Families (6)
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 (ja) * | 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. |
-
1997
- 1997-01-29 NL NL1005118A patent/NL1005118C2/nl not_active IP Right Cessation
-
1998
- 1998-01-20 PL PL334875A patent/PL196634B1/pl unknown
- 1998-01-20 CN CN98803584A patent/CN1119326C/zh not_active Expired - Fee Related
- 1998-01-20 AU AU55788/98A patent/AU726205B2/en not_active Ceased
- 1998-01-20 ES ES98900772T patent/ES2180139T3/es not_active Expired - Lifetime
- 1998-01-20 DE DE69806475T patent/DE69806475T2/de not_active Expired - Lifetime
- 1998-01-20 JP JP53185498A patent/JP4063333B2/ja not_active Expired - Fee Related
- 1998-01-20 EP EP98900772A patent/EP0977731B1/en not_active Expired - Lifetime
- 1998-01-20 WO PCT/NL1998/000036 patent/WO1998032731A1/en active IP Right Grant
- 1998-01-20 CA CA002279235A patent/CA2279235C/en not_active Expired - Fee Related
- 1998-01-20 ID IDW990763A patent/ID22135A/id unknown
- 1998-01-20 KR KR10-1999-7006744A patent/KR100522226B1/ko not_active IP Right Cessation
- 1998-01-20 TW TW087100694A patent/TW513396B/zh not_active IP Right Cessation
- 1998-01-20 AT AT98900772T patent/ATE220392T1/de active
-
1999
- 1999-07-28 US US09/361,710 patent/US6111138A/en not_active Expired - Lifetime
- 1999-07-29 NO NO19993698A patent/NO312545B1/no not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005534688A (ja) * | 2002-07-29 | 2005-11-17 | ディーエスエム アイピー アセッツ ビー.ブイ. | 尿素プラントの容量を増加する方法 |
JP2011079829A (ja) * | 2002-07-29 | 2011-04-21 | Stamicarbon Bv | 尿素プラントの製造能力を増大させる方法 |
JP2014169300A (ja) * | 2002-07-29 | 2014-09-18 | Stamicarbon Bv | 尿素プラントの製造能力を増大させる方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100522226B1 (ko) | 2005-10-17 |
KR20000070500A (ko) | 2000-11-25 |
CA2279235C (en) | 2006-12-12 |
AU726205B2 (en) | 2000-11-02 |
CN1251088A (zh) | 2000-04-19 |
CN1119326C (zh) | 2003-08-27 |
ATE220392T1 (de) | 2002-07-15 |
EP0977731A1 (en) | 2000-02-09 |
EP0977731B1 (en) | 2002-07-10 |
WO1998032731A1 (en) | 1998-07-30 |
ES2180139T3 (es) | 2003-02-01 |
NO993698L (no) | 1999-09-21 |
CA2279235A1 (en) | 1998-07-30 |
US6111138A (en) | 2000-08-29 |
NO312545B1 (no) | 2002-05-27 |
DE69806475T2 (de) | 2003-02-27 |
TW513396B (en) | 2002-12-11 |
NO993698D0 (no) | 1999-07-29 |
PL334875A1 (en) | 2000-03-27 |
ID22135A (id) | 1999-09-09 |
DE69806475D1 (de) | 2002-08-14 |
AU5578898A (en) | 1998-08-18 |
PL196634B1 (pl) | 2008-01-31 |
JP4063333B2 (ja) | 2008-03-19 |
NL1005118C2 (nl) | 1998-07-30 |
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