METHOD FOR COOLING A MELAMINE MELT

摘要

The invention relates to methods for cooling a melamine melt with the use of water and aqueous solutions. The invention can be used in the industrial production of melamine. The method for cooling a melamine melt comprises cooling a melamine melt with water to a temperature of 130-230ºС in a cooling zone, with evaporation of the water and formation of a gaseous solid-melamine/water-vapour suspension. The melamine is discharged from the cooling zone in the form of a gaseous solid-melamine/water-vapour suspension. Nitrogen, air or a mixture thereof can additionally be introduced into the resulting gaseous solid-melamine/water-vapour suspension, before said suspension is discharged from the cooling zone. The technical result which can be produced with the use of the invention is a reduction in the degree of hydrolysis of melamine at the stage of cooling the melamine melt with water, and a simplification of the technological process.