FIELD: chemistry, technological processes.
SUBSTANCE: reaction of transformation of urea into melamin is carried out at least, partially in conditions, in which at least one reagent, intermediate and/or final product is in overcritical state at temperature at least 350°C and under pressure higher than 550 bar, and mixture at least one reagent, intermediate and/ or final product form essentially homogenous phase, and all reagents, intermediate and/or final products are fully dissolved.
EFFECT: economical method of melamin production allows to use compact reactor.
1 cl, 1 ex, 5 dwg
| Title | Year | Author | Number |
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