Process for urea production involving a carbon dioxide stripping

Details Process for urea production involving a carbon dioxide stripping Process for urea production involving a carbon dioxide stripping

1995-11-15

1998-08-11

Kumar, Shailendra

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

Organic compounds

Amino nitrogen containing

203 31, 422188, 422189, 422191, 422193, 423359, 564 68, 564 69, C07C27304, B01J 804

Patent

active

057928894

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 reactor with partial removal of the reaction heat and a urea recovery section of the solution leaving the high-yield reactor, are added to the pre-existing urea plant, means being provided for recycling unreacted ammonia and carbon dioxide vapors as well as a carbamate solution obtained in the urea recovery section to the pre-existing reactor.

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