Phase equilibria in high pressure melamine synthesis

Phase equilibria in high pressure melamine synthesis A set of equations describing equilibrium compositions of liquid and gas phases in a reaction mixture formed in the synthesis of melamine from urea at high pressures was derived. A numerical solution of the set in a pressure range of 5–15 MPa, temperatures range of 350–400°C, and at an ammonia to urea ratio from 0 to 1 mol mol−1 enabled determining the equilibrium output of melamine and byproducts. It was shown that in the range of parameters under study an increase in temperature and amount of ammonia introduced and a decrease in pressure in melamine synthesis can lead to a higher content of impurities in the product. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Phase equilibria in high pressure melamine synthesis

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213060141
Publisher site
See Article on Publisher Site

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