发明名称 |
СПОСОБ ПОЛУЧЕНИЯ МОЧЕВИНЫ (ВАРИАНТЫ), СПОСОБ ПОВЫШЕНИЯ ПРОИЗВОДИТЕЛЬНОСТИ ПРО ЦЕССА |
摘要 |
Process for the preparation of urea from ammonia and carbon dioxide in which a urea synthesis solution containing urea, ammonium carbamate and unconverted ammonia is formed in a synthesis zone, a part of the urea synthesis solution being transferred from the synthesis zone to a medium-pressure treatment zone operating at a pressure of 1-4 MPa, and a gas stream from the medium-pressure treatment zone being absorbed into the low-pressure ammonium carbamate solution from the urea recovery section. |
申请公布号 |
RU2003134953(A) |
申请公布日期 |
2005.05.27 |
申请号 |
RU20030134953 |
申请日期 |
2002.04.24 |
申请人 |
ДСМ Ай Пи ЭССЕТС Б.В. (NL) |
发明人 |
МЕННЕН Йоханнес Хенрикус (NL) |
分类号 |
B01J12/02;C07C273/04 |
主分类号 |
B01J12/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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