PROCESS FOR THE PRODUCTION OF AN AQUEOUS STREAM COMPRISING MELAMINE AND ALDEHYDE

• Main Authors: HOVING, HENDRIK, DERK, WIT DE, NORA, ANNA, VERSCHOOR, HENDRINUS, MARINUS, DUISTERS, HENRICUS, ANTONIUS, MARIA
• Format: Patent
• Language: English; French
• Published: 27.04.2006
• Edition: 7
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; HETEROCYCLIC COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Process for the production of an aqueous stream comprising melamine and aldehyde in which a melamine comprising aqueous stream is contacted with an aldehyde comprising stream, the melamine comprising aqueous stream originating from a melamine plant, and process for the production of an aqueous stream comprising melamine, urea and aldehyde in which a melamine comprising aqueous stream and a urea comprising stream are being contacted with an aldehyde comprising stream, the melamine comprising aqueous stream originating from a melamine plant. L'invention concerne un procédé de production d'un flux aqueux comprenant de la mélamine et de l'aldéhyde, selon lequel un flux aqueux comprenant de la mélamine est mis au contact d'un flux comprenant de l'aldéhyde, le flux aqueux comprenant de la mélamine provenant d'une unité de fabrication de mélamine. L'invention concerne également un procédé de production d'un flux aqueux comprenant de la mélamine, de l'urée et de l'aldéhyde, selon lequel un flux aqueux comprenant de la mélamine et un flux aqueux comprenant de l'urée sont mis au contact d'un flux comprenant de l'aldéhyde, le flux aqueux comprenant de la mélamine provenant d'une unité de fabrication de mélamine.