Method of defoaming amine solutions

摘要

A process is disclosed for inhibiting or eliminating foams and bubbles produced in the course of treating acidic gases with an aqueous solution. Defoaming is effected by the use of a modified silicone compound having the general formula <IMAGE> where R1-R8 are organic residues of 1-10 carbons, and n is an integer, and characterized by part of R1-R8 being substituted by a group of the general formula -R9-OH where R9 is a hydrocarbon or organic residue of 1-10 carbons; or characterized by part of R1-R8 being substituted by a group of the general formula -NR10R11 where R10 and R11 are either hydrogen or hydrocarbon or organic residue of 1-10 carbons.