METHOD FOR CONTACTING MOLTEN UREA WITH A GAS STREAM
摘要
The invention relates to a method for contacting molten urea with a gas stream that contains ammonia and/or carbon dioxide, in which use is made of an additional stream the temperature of which differs from the temperature of the molten urea and/or the gas stream. The additional stream preferably contains ammonia. The method is preferably part of a process for the preparation of melamine.
申请公布号
WO02100840(A3)
申请公布日期
2003.04.10
申请号
WO2002NL00368
申请日期
2002.06.06
申请人
DSM N.V.;TJIOE, TJAY, TJIEN;DUISTERS, HENRICUS, ANTONIUS, MARIA
发明人
TJIOE, TJAY, TJIEN;DUISTERS, HENRICUS, ANTONIUS, MARIA