Patent ID: 9085515
Filing Date: 2015-07-21
Classification: C07C

Abstract:
1. A continuous process for making amine oxide, comprising the steps of; a) providing the following components; a tertiary amine composition and an aqueous hydrogen peroxide composition; b) mixing the components from step a) in a mixing device; c) passing the mixture exiting the mixing device from step b) into a pre-prepared aqueous amine oxide composition comprising from about 65 to about 80 wt % amine oxide; d) adjusting the temperature of the amine oxide composition made in step c) to between about 40 and about 80° C.; e) collecting the amine oxide surfactant; and wherein, for every 1 part of the component mixture from step b) being passed into the pre-prepared amine oxide composition in step c), between about 8 and about 30 parts of the temperature adjusted amine oxide composition from step d) are recycled back to step b) and passed through the mixing device together with the components from step a).