Covestro LLC

Mark A Christman, Ii

Daniel R Wagner

Jenna L Caputo

Nigel Barksby

Matthew S Otto

Charles D Starkey

Methods of removing amine contaminants from equipment used in the production of polyether polyols. These methods include: (a) contacting the equipment with an aqueous solution of a first acid; (b) discharging the aqueous solution of the first acid from the equipment; (c) contacting the equipment with an aqueous solution of an acidic metal conditioner; (d) discharging the aqueous solution of the acidic metal conditioner from the equipment; (e) contacting the equipment with an aqueous solution of an alkali metal hydroxide; and (f) discharging the aqueous solution of the alkali metal hydroxide from the equipment.

Methods for removing amine contaminants from equipment used in the production of polyether polyols

Disclosed are processes and systems for removing water from a polyether polyol that employs a controlled temperature and pressure profile.

Growing community of inventors

Woodsfield, OH, United States of America

Mark A Christman, Ii