CA2261634A1 - Method for the preparation of melamine - Google Patents
Method for the preparation of melamineInfo
- Publication number
- CA2261634A1 CA2261634A1 CA002261634A CA2261634A CA2261634A1 CA 2261634 A1 CA2261634 A1 CA 2261634A1 CA 002261634 A CA002261634 A CA 002261634A CA 2261634 A CA2261634 A CA 2261634A CA 2261634 A1 CA2261634 A1 CA 2261634A1
- Authority
- CA
- Canada
- Prior art keywords
- melamine
- melt
- vessel
- preparation
- cooling vessel
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
The invention relates to a high-pressure process for producing melamine from urea in which highly pure melamine is obtained by transferring melamine melt leaving a melamine reactor to a cooling vessel where the melamine melt is cooled to a temperature of between 1°C and 30°C above the melting point of melamine after which the liquid melamine can be transferred to a second cooling vessel in which vessel the melamine melt is further cooled using cold ammonia by which solid melamine is obtained.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1003709A NL1003709C2 (en) | 1996-07-30 | 1996-07-30 | Process for preparing melamine. |
NL1003709 | 1996-07-30 | ||
PCT/NL1997/000431 WO1998004533A1 (en) | 1996-07-30 | 1997-07-21 | Method for the preparation of melamine |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2261634A1 true CA2261634A1 (en) | 1998-02-05 |
CA2261634C CA2261634C (en) | 2006-04-04 |
Family
ID=36143397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002261634A Expired - Fee Related CA2261634C (en) | 1996-07-30 | 1997-07-21 | Method for the preparation of melamine |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2261634C (en) |
-
1997
- 1997-07-21 CA CA002261634A patent/CA2261634C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2261634C (en) | 2006-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |