Process for urea production

Details Process for urea production Process for urea production

1995-03-16

2000-11-21

Kumar, Shailendra

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564 70, 564 72, C07C27304

Patent

active

061505552

ABSTRACT:
An improved process for urea production as well as a method of retrofitting a pre-existing urea plant based on the Stamicarbon process are disclosed. According to the invention, a high yield reaction space fed by highly pure reagents (NH3 and CO2) and a separating section of the solution leaving the high yield reaction space are added to the pre-existing urea plant, means being provided for recirculating ammonia and carbammate solutions obtained in the separating section to the added high yield reaction space and to the pre-existing reactor respectively.

REFERENCES:
patent: 4504679 (1985-03-01), Inou et al.
patent: 4613696 (1986-09-01), Zardi

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