PROCESS FOR THE PRODUCTION OF MELAMINE FROM UREA, AND PARTICULARLY TO OBTAIN MELAMINE-FREE OFF-GAS IN THE FIRST SEPARATION STEP - Patent 1504045

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EP 1 504 045 A1

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(43)	Date of publication:
	09.02.2005 Bulletin 2005/06

(21)	Application number: 03749861.5

(22)	Date of filing: 29.04.2003

(51)	International Patent Classification (IPC)⁷: C08G 12/32, C07D 251/60, B01D 53/00

(86)	International application number:
	PCT/EP2003/004556

(87)	International publication number:
	WO 2003/095516 (20.11.2003 Gazette 2003/47)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

14.05.2002 IT MI20021026

(71)	Applicant: Eurotecnica Group S.A.
	CH-2502 Bienne (CH)

(72)	Inventors:
	SANTUCCI, Roberto I-21050 Gorla Maggiore (IT) PARMEGIANI, Massimo I-21057 Olgiate Olona (IT) NOE', Sergio I-20097 San Donato Milanese (IT)

(74)	Representative: De Gregori, Antonella
	Ing. Barzano' & Zanardo Milano S.p.A.Via Borgonuovo 10 20121 Milano 20121 Milano (IT)

(54)	PROCESS FOR THE PRODUCTION OF MELAMINE FROM UREA, AND PARTICULARLY TO OBTAIN MELAMINE-FREE OFF-GAS IN THE FIRST SEPARATION STEP