Systems and methods for recovering amines and their derivatives from aqueous mixtures

US12090420B2 · kind B2 · utility

Assignee

• INV NYLON CHEMICALS AMERICAS, LLC · US

Inventors

• Gary J. Smith · Kingston, CA
• Paul S. Pearlman · Thornton, US
• Gregory S. Kirby · Avondale, US
• Richard R. Rosin · Skokie, US
• Taylor Craig Schulz · Chicago, US
• Michael James Sargent · Cambridge, GB

Key dates

• Filing date: Sep 17, 2019
• Grant date: Sep 17, 2024
• Expiry date: Nov 9, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2305/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present disclosure generally relates to methods for the recovery of amines from aqueous mixtures. In particular, the disclosure relates to methods for separating amines from amine-containing aqueous mixtures by adjusting the pH of the aqueous mixture relative to the highest pKa value for the amines.