Title:
PROCESS FOR PREPARING UREA
Document Type and Number:
Japanese Patent JPS53149929
Kind Code:
A
Abstract:
In a process for producing urea with ammonia and pure carbon dioxide as starting materials, the improvement comprises feeding liquid ammonia in part to the absorber (1) with all the carbon dioxide and in part to the synthesis reactor (2). The NH3/CO2 molar ratios are 2 to 4 for the condenser and 2.5 to 7 for the reactor. Film-type absorbers are preferred.
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Inventors:
JIYORUJIYO PAGAANI
ANDOREA BONETSUCHI
ANDOREA BONETSUCHI
Application Number:
JP3695778A
Publication Date:
December 27, 1978
Filing Date:
March 31, 1978
Export Citation:
Assignee:
SNAM PROGETTI
International Classes:
C07C67/00; C07C239/00; C07C273/04; (IPC1-7): C07C126/02