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Article: Italian Inventors Develop Urea/Melamine Production Process
- Article from:
- US Fed News Service, Including US State News
- Article date:
- July 12, 2006
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ALEXANDRIA, Va., July 12 -- Lino Porro of Novedrate, Italy, has developed an integrated process for urea/melamine production.
According to the U.S. Patent & Trademark Office: "In the process, urea is synthesized from ammonia and carbon dioxide, obtaining molten urea and a gaseous mixture comprising steam and ammonia. The gaseous mixture is condensed, obtaining a cold aqueous ammoniacal solution. Melamine is synthesized from urea with formation of off-gases, comprising ammonia and carbon dioxide. The off-gases are absorbed in at least one fraction of the cold aqueous ammonical solution, with formation of a carbamate aqueous solution."
An abstract of the invention, released by the Patent ...