USE OF UREA CONTAINING FORMALDEHYDE IN METHOD OF PRODUCING MELAMINE BY UREA PYROLYSIS AND RELATED METHOD OF PRODUCING MELAMINE Russian patent published in 2022 - IPC C07D251/60

Abstract RU 2783419 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing melamine by urea pyrolysis carried out at high pressure using urea containing formaldehyde as starting material.

EFFECT: technical result: disclosed method of producing melamine enables to obtain melamine, from which end products are obtained, having high whiteness and/or brightness, high resistance to aging; wherein said characteristics can be obtained with less consumption of dyes and/or other additives, such as, for example, titanium dioxide TiO₂.

6 cl, 1 dwg, 2 ex

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RU 2 783 419 C2

Authors

Santuchchi Roberto

Dates

2022-11-14—Published

2011-12-14—Filed