원래 이름 기록: Stamicarbon B.V.

The disclosure pertains to a nitric acid production process and plant wherein tail gas is recycled to the burner and Ois supplied to the absorption section in a certain molar ratio to the ammonia feed.

The disclosure pertains to melamine production coupled to urea production, using a melamine off-gas condenser operating at a pressure of at least 25 bar. In embodiment, carbamate solution from a recovery section of the urea production is supplied to the melamine off-gas condenser. In an embodiment, carbamate solution from melamine mother liquor treatment is supplied to the LP carbamate condenser of the recovery section.