Diaminoalcohols, their preparation and their use as acid gas...

Details Diaminoalcohols, their preparation and their use as acid gas... Diaminoalcohols, their preparation and their use as acid gas...

B - Operations, Transporting

01

D

252/30, 23/356,

B01D 53/14 (2006.01) C07C 89/00 (1985.01) C07C 91/12 (1985.01)

Patent

CA 1254231

DIAMINOALCOHOLS, THEIR PREPARATION AND THEIR USE AS ACID GAS REMOVAL AGENTS ABSTRACT OF THE DISCLOSURE A diaminoalcohol of the formula: Image wherein R1 is a secondary alkyl group of 3-5 carbon atoms, R2 is an alkyl group of 1-3 carbon atoms; R3 and R4 are independently hydrogen or methyl groups; and R1 and R2 are such that the total number of carbon atoms in both R1 and R2 is no greater than six is prepared preferably by a two-step process. This composition when combined with a solvent such as water and/or a physical absorbent may be used in the removal of acid gases from normally gaseous streams. Preferably R1 is an isopropyl group and R2 is a methyl, ethyl or isopropyl group.

496438

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