caa a22 4500 445850329 CHVBK 20180317145411.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1134/S0040579510051203 doi (NATIONALLICENCE)springer-10.1134/S0040579510051203 Catalytic synthesis of triazine compounds using a flexible technology [Elektronische Daten] [A. Kurylev, V. Beskov, A. Pravdin, E. Golosman] Based on laboratory pilot studies, we have developed a flow sheet for the catalytic synthesis of triazine compounds from carbamide using a flexible technology and a catalyst for this process. The main process parameters are as follows: a carbamide melt is fed into the reactor under a pressure of 0.8 MPa at 140-160°C; the volume rate of feeding the circulating gas into the reactor is 500-750 h−1, its temperature is 350-500°C, and the melt-to-gas mass ratio is 1: (7-9). The temperature of synthesis in the reactor is 350-450°C; the pressure in the reactor is 0.1-0.2 MPa. The sublimation temperature is 180-200°C. The conversion of carbamide is ∼98%. The content of the target component in the product is ∼98.8%. Depending on the composition of the circulating gas, it is possible to obtain products of melamine, cyanuric acid, or melamine cyanurate. A catalyst in the form of promoted active aluminum oxide with an inner surface of 300 to 400 m2/g and a technique for its preparation have been developed. Pleiades Publishing, Ltd., 2011 melamine nationallicence cyanuric acid nationallicence melamine cyanurate nationallicence catalyst nationallicence technology nationallicence aluminum oxide nationallicence flow sheet nationallicence Kurylev A. Novomoskovsk Institute, Mendeleev University of Chemical Technology of Russia, Novomoskovsk, Russia aut Beskov V. Mendeleev University of Chemical Technology of Russia, Moscow, Russia aut Pravdin A. OOO NIAP-KATALIZATOR, Novomoskovsk, Russia aut Golosman E. OOO NIAP-KATALIZATOR, Novomoskovsk, Russia aut Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/4(2011-08-01), 492-495 0040-5795 45:4<492 2011 45 11236 https://doi.org/10.1134/S0040579510051203 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0040579510051203 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kurylev A. Novomoskovsk Institute, Mendeleev University of Chemical Technology of Russia, Novomoskovsk, Russia aut NATIONALLICENCE 700 1- Beskov V. Mendeleev University of Chemical Technology of Russia, Moscow, Russia aut NATIONALLICENCE 700 1- Pravdin A. OOO NIAP-KATALIZATOR, Novomoskovsk, Russia aut NATIONALLICENCE 700 1- Golosman E. OOO NIAP-KATALIZATOR, Novomoskovsk, Russia aut NATIONALLICENCE 773 0- Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/4(2011-08-01), 492-495 0040-5795 45:4<492 2011 45 11236 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer