Patent ID: 9045439
Filing Date: 2015-06-02
Classification: B01D,B01J,C07D

Abstract:
1. A high-pressure non-catalytic plant for the production of high-purity melamine comprising: a reactor for melamine synthesis; a quenching section for obtaining a melamine solution from a melamine melt discharged from the reactor; a melamine crystallization section for the melamine solution discharged from the quenching section and a liquid/solid separation section for separating crystals from a melamine mother liquor, wherein said reactor and said sections are in fluid communication to each other; a treatment section comprising heat transfer means for thermally treating a melamine crystallization mother liquor for ammeline conversion; means for feeding a flow of melamine crystallization mother liquor exiting said liquid/solid separation section to said treatment section; and means for feeding a flow of treated mother liquor exiting said treatment section to said quenching section.