Rohm and Haas Company

Jeffery Alan Goodwin

Michael Stanley DeCourcy

Robert Wilczynski

Robert Michael Mason

Dmitri A Kraptchetov

Ronald Drew Myers

David Chalfant

A process comprising for preparing Cto Calkyl(meth)acrylates, such as butyl acrylate, wherein vaporized reactor contents are fed directly to a column, the aqueous reflux ratio to the column is from 4 to 12, and the level of acrylic acid in the primarily organic phase separated from the overhead condensate of the column is less than 2000 ppm.

Acrylate production process

Separations processes and apparati capable of purifying thermally sensitive materials at high capacity. An apparatus having a rectification section and a stripping section with the stripping section having a stripping tray with 5 to 50% open area, a pressure drop from 0.02 psi to 0.2 psi and a tray efficiency during operation of the column which is equal to or greater than 20%.

High capacity purification of thermally unstable compounds

Growing community of inventors

League City, TX, United States of America

Jeffery Alan Goodwin