JP2002502373A - メラミンの製造法 - Google Patents
メラミンの製造法Info
- Publication number
- JP2002502373A JP2002502373A JP55025998A JP55025998A JP2002502373A JP 2002502373 A JP2002502373 A JP 2002502373A JP 55025998 A JP55025998 A JP 55025998A JP 55025998 A JP55025998 A JP 55025998A JP 2002502373 A JP2002502373 A JP 2002502373A
- Authority
- JP
- Japan
- Prior art keywords
- melamine
- melt
- temperature
- ammonia
- powder
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Fertilizers (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Plural Heterocyclic Compounds (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.反応器から得られるメラミン溶融物を、その中でメラミン溶融物がアンモニ アによって冷却されるところの容器に移すことにより固体メラミンを得る、高圧 法によって尿素からメラミンを製造する方法において、メラミン反応器から得ら れかつメラミンの融点〜450℃の温度を有するメラミン溶融物を容器内に噴霧手 段によって、高められた圧力のアンモニア環境内に噴霧して、メラミン溶融物を 200℃〜メラミンの凝固点の温度を有するメラミン粉末に転化し、次いでその粉 末を6秒〜5時間、高められた圧力でアンモニアと接触させたままにし、ここで 任意的に生成物は該接触時間中、実質的に同じ温度で維持され、または生成物が 6秒〜5時間にわたって200℃より上の温度を有するように冷却され、冷却は同 じ容器または別個の冷却容器で行われる、ことを特徴とする方法。 2.メラミン反応器から得られる溶融物が、容器内に噴霧手段によって、1Mpa より上の圧力のアンモニア環境内に噴霧されることを特徴とする、請求項1に記 載の方法。 3.メラミン溶融物が、240℃〜メラミンの凝固点の温度を有するメラミン粉末 に転化されることを特徴とする、請求項1または2に記載の方法。 4.メラミン溶融物が、270℃〜メラミンの凝固点の温度を有するメラミン粉末 に転化されることを特徴とする、請求項3に記載の方法。 5.粉末を30秒〜2時間にわたってアンモニアと接触させたままにすることを特 徴とする、請求項1〜4のいずれか1つに記載の方法。 6.粉末を1Mpaより上の圧力のアンモニアと接触させたままにすることを特徴 とする、請求項1〜5のいずれか1つに記載の方法。 7.生成物が6秒〜5時間にわたって240℃より上の温度を有することを特徴と する、請求項1〜6のいずれか1つに記載の方法。 8.生成物が6秒〜5時間にわたって270℃より上の温度を有することを特徴と する、請求項7に記載の方法。 9.生成物が30秒〜2時間にわたって240℃より上の温度を有することを特徴と する、請求項1〜8のいずれか1つに記載の方法。 10.生成物が30秒〜2時間にわたって270℃より上の温度を有することを特徴と する、請求項9に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1006095A NL1006095C2 (nl) | 1997-05-21 | 1997-05-21 | Werkwijze voor het bereiden van melamine. |
EP97201806 | 1997-06-16 | ||
EP1006095 | 1997-06-16 | ||
EP97201806.3 | 1997-06-16 | ||
PCT/NL1998/000278 WO1998052928A1 (en) | 1997-05-21 | 1998-05-15 | Method for preparing melamine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002502373A true JP2002502373A (ja) | 2002-01-22 |
JP2002502373A5 JP2002502373A5 (ja) | 2005-12-08 |
Family
ID=26146602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55025998A Ceased JP2002502373A (ja) | 1997-05-21 | 1998-05-15 | メラミンの製造法 |
Country Status (15)
Country | Link |
---|---|
US (1) | US6235902B1 (ja) |
EP (1) | EP0983250B1 (ja) |
JP (1) | JP2002502373A (ja) |
KR (1) | KR100495262B1 (ja) |
CN (1) | CN1144792C (ja) |
AT (1) | ATE237600T1 (ja) |
AU (1) | AU728549B2 (ja) |
CA (1) | CA2290478C (ja) |
DE (1) | DE69813545T2 (ja) |
ES (1) | ES2197470T3 (ja) |
ID (1) | ID22917A (ja) |
NO (1) | NO312194B1 (ja) |
SA (1) | SA98190269B1 (ja) |
TW (1) | TW464644B (ja) |
WO (1) | WO1998052928A1 (ja) |
Families Citing this family (2)
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 |
EP1035117A1 (en) * | 1999-03-08 | 2000-09-13 | Dsm N.V. | Method for preparing melamine from urea |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8001874A (nl) * | 1980-03-29 | 1981-11-02 | Stamicarbon | Inrichting voor het versproeien van een vloeistof met behulp van een gas. |
SE430559B (sv) * | 1982-04-08 | 1983-11-28 | Alfa Laval Ab | Sett att mjolka och anordning herfor |
US4565867A (en) | 1984-01-05 | 1986-01-21 | Melamine Chemicals, Inc. | Anhydrous high-pressure melamine synthesis |
NL9301098A (nl) * | 1993-06-24 | 1995-01-16 | Texas Industries Inc | Inrichting voor het automatisch melken van dieren. |
NL9301214A (nl) * | 1993-07-12 | 1995-02-01 | Texas Industries Inc | Inrichting voor het automatisch melken van dieren. |
NL9301378A (nl) * | 1993-08-09 | 1995-03-01 | Lely Nv C Van Der | Inrichting voor het automatisch melken van dieren. |
AT402295B (de) | 1994-12-23 | 1997-03-25 | Agrolinz Melamin Gmbh | Verfahren zur reinigung von melamin |
AT402294B (de) * | 1994-12-23 | 1997-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von hochreinem melamin |
AT402296B (de) | 1995-02-03 | 1997-03-25 | Agrolinz Melamin Gmbh | Verfahren zur reinigung von melamin |
US5514797A (en) | 1995-06-07 | 1996-05-07 | Melamine Chemicals, Inc. | Method for increasing purity of melamine |
US5514796A (en) | 1995-06-07 | 1996-05-07 | Melamine Chemicals, Inc. | Melamine of improved purity produced by high-pressure, non-catalytic process |
AT403579B (de) | 1995-12-07 | 1998-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von hochreinem melamin |
NL1003105C2 (nl) | 1996-05-14 | 1997-11-18 | Dsm Nv | Werkwijze voor de bereiding van melamine. |
NL1003328C2 (nl) | 1996-06-13 | 1997-12-17 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
KR100495264B1 (ko) * | 1997-05-28 | 2005-06-14 | 코닌클리즈케 디에스엠 엔.브이. | 멜라민의 제조방법 |
DE69837432T2 (de) * | 1997-06-02 | 2007-12-13 | Dsm Ip Assets B.V. | Kristallines melamin |
WO1998055466A1 (en) * | 1997-06-02 | 1998-12-10 | Dsm N.V. | Method for preparing melamine |
-
1998
- 1998-05-15 ES ES98923214T patent/ES2197470T3/es not_active Expired - Lifetime
- 1998-05-15 CN CNB98805213XA patent/CN1144792C/zh not_active Expired - Fee Related
- 1998-05-15 EP EP98923214A patent/EP0983250B1/en not_active Expired - Lifetime
- 1998-05-15 CA CA002290478A patent/CA2290478C/en not_active Expired - Fee Related
- 1998-05-15 WO PCT/NL1998/000278 patent/WO1998052928A1/en active IP Right Grant
- 1998-05-15 ID IDW991420A patent/ID22917A/id unknown
- 1998-05-15 AU AU75553/98A patent/AU728549B2/en not_active Ceased
- 1998-05-15 KR KR10-1999-7010413A patent/KR100495262B1/ko not_active IP Right Cessation
- 1998-05-15 JP JP55025998A patent/JP2002502373A/ja not_active Ceased
- 1998-05-15 DE DE69813545T patent/DE69813545T2/de not_active Expired - Fee Related
- 1998-05-15 AT AT98923214T patent/ATE237600T1/de not_active IP Right Cessation
- 1998-05-19 TW TW087107726A patent/TW464644B/zh not_active IP Right Cessation
- 1998-07-08 SA SA98190269A patent/SA98190269B1/ar unknown
-
1999
- 1999-11-19 NO NO19995694A patent/NO312194B1/no unknown
- 1999-11-22 US US09/444,302 patent/US6235902B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6235902B1 (en) | 2001-05-22 |
KR20010012459A (ko) | 2001-02-15 |
WO1998052928A1 (en) | 1998-11-26 |
CN1256689A (zh) | 2000-06-14 |
SA98190269B1 (ar) | 2006-08-15 |
NO995694L (no) | 1999-11-19 |
CN1144792C (zh) | 2004-04-07 |
AU728549B2 (en) | 2001-01-11 |
KR100495262B1 (ko) | 2005-06-14 |
AU7555398A (en) | 1998-12-11 |
CA2290478C (en) | 2008-07-29 |
TW464644B (en) | 2001-11-21 |
ID22917A (id) | 1999-12-16 |
ES2197470T3 (es) | 2004-01-01 |
EP0983250B1 (en) | 2003-04-16 |
CA2290478A1 (en) | 1998-11-26 |
NO995694D0 (no) | 1999-11-19 |
ATE237600T1 (de) | 2003-05-15 |
DE69813545T2 (de) | 2004-04-08 |
EP0983250A1 (en) | 2000-03-08 |
DE69813545D1 (de) | 2003-05-22 |
NO312194B1 (no) | 2002-04-08 |
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Legal Events
Date | Code | Title | Description |
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A313 | Final decision of rejection without a dissenting response from the applicant |
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