- Process for the Synthesis of Melamine Cyanurate in Lamellar Crystalline Shape with High Purity and Flowability
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The present invention relates to a process for the synthesis of melamine cyanurate in lamellar crystalline shape with high purity and flowability. The procedures include that 1) melamine and cyanuric acid react to form mixture solution, 2) the mixture solution is filter-pressed to prepare filter cake, 3) filter cake and silicon oil are mixed to obtain semi-finished product, 4) dried the semi-finished product until the water content is less than 1.0%, 5) heat the temperature and control certain vacuum degree for curing and crystallizing, 6) the product is obtained. The processing steps of present invention are easy to operate, the processing parameters are easy to control, the production time of melamine cyanurate is short, the quantity of pure water is low, and utilization of equipments is high. Removing the incompletely reacted raw materials and impurities by filter-pressing, greatly increases the purity of semi-products.
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Page/Page column 3
(2012/07/14)
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- MELAMINE CYANURATE IN CRYSTALLINE FORM
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The present invention relates to a novel process for preparing solid, small particles comprising melamine cyanurate in essentially crystalline form. A concentrated aqueous dispersion is prepared of a mixture of cyanuric acid and melamine and selected surfactants are added to the dispersion.
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Page/Page column 14
(2008/06/13)
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- Granular melamine cyanurate and preparation process thereof
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Melamine cyanurate is prepared by heating melamine powder and cyanuric acid powder at 250° to 500° C. substantially in the absence of any liquid medium. The melamine cyanurate can be obtained in a granular form when the heating is conducted subsequent to granulation of a mixture of both the powders.
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- Studies of Cyanamide Derivatives. Part 110. A facile Synthesis of 2,4,6-Triureido-1,3,5-triazine and 2-Amino-4,6-diureido-1,3,5-triazine
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2,4,6-Triureido-1,3,5-triazine and 2-amino-4,6-diureido-1,3,5-triazine were readily synthetized in high yields, 94 and 85percent respectively, by the alcoholysis of 2,4,6-tris(cyanoamino)-1,3,5-triazine and 2-amino-4,6-bis(cyanoamino)-1,3,5-triazine in the presence of hydrogen chloride
- Iio, Kokoro,Ichikawa, Eiichi
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p. 2009 - 2010
(2007/10/02)
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