Carbamate condensation method and unit for carrying out such...

Details Carbamate condensation method and unit for carrying out such... Carbamate condensation method and unit for carrying out such...

2007-10-09

2007-10-09

Witherspoon, Sikarl A. (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S066000, C564S072000

Reexamination Certificate

active

10937952

ABSTRACT:
Method for carbamate condensation of a carbon dioxide/ammonia gaseous phase in a liquid phase in a condensation unit of the so-called submerged type comprising a heat exchange tube bundle having a predetermined number of tubes intended for carbamate condensation, wherein the gaseous phase and the liquid phase are fed contemporaneously and independently to each of the tubes intended for condensation.

REFERENCES:
patent: 2385200 (1945-09-01), Friedel
patent: 3268435 (1966-08-01), Sellin
patent: 4792436 (1988-12-01), Tsai
patent: 6284922 (2001-09-01), Pagani et al.
patent: 7091379 (2006-08-01), Zardi
patent: 1 036 787 (2000-09-01), None

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