Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-09-18
1979-10-02
Douglas, Winston A.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
422187, C07C 8902, C07C 8904
Patent
active
041698568
ABSTRACT:
A process for the preparation of ethanolamines includes passing ammonia in counter-flow with water and a recycled ammoniacal solution through an absorption column provided with internally cooled bubbling-trays to obtain an ammoniacal solution containing from 20 to 50% by weight of ammonia, reacting the ammoniacal solution with ethylene oxide firstly in an isothermal reactor and then in an adiabatic reactor to obtain substantially complete conversion of the ethylene oxide to ethanolamines, removing by means of a desorption column and recycling unreacted ammonia and part of the water from the reaction product, evaporating a greater part of the remaining water in an evaporator and dehydrating the ethanolamines at low pressure.
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Cocuzza Gioacchino
Torreggiani Gianni
Doll John
Douglas Winston A.
Euteco S.p.A.
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