Patent · US Active

Process and plant for the synthesis of urea

US11279671B2 · kind B2 · utility

0Cited by

21References

1Claims

0Family size

Assignee

Casale SA · CH

Inventors

Paolo Bertini · Lugano, CH
Matteo Fumagalli · Samarate, IT
Serena Gabbiadini · Milano, IT

Key dates

Filing date	Apr 30, 2018
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Apr 30, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/141
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Plant for the synthesis of urea comprising: a synthesis section (101), wherein ammonia (1) and carbon dioxide (2) react to give an aqueous solution (3) containing urea and ammonium carbamate; at least one recovery section fed with said depressurized aqueous solution and in a two-phase state, said recovery section comprising a separator (104,108) which processes said two-phase solution; a pre-decomposer (105, 109), a decomposer (106, 110) and a condenser (107, 111), wherein the gaseous streams obtained in the separator and in the decomposer are condensed in said condenser of the recovery section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.