C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 273/16 (2006.01)
Patent
CA 2174016
An improved urea recovery process is presented. In the improved process, multiple vacuum rated surface condensers used to condense water vapor evolved during urea vacuum evaporation/concentration are replaced by a direct contact cooler/absorber to obtain substantial capital and utility cost savings. Improved heat exchange efficiency of the present process significantly reduces cooling water usage in comparison to the surface condensers.
Czuppon Thomas Anthony
Singh Vishnu Deo
Strait Richard Bruce
Kirby Eades Gale Baker
The M.w. Kellogg Company
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