Patent ID: 9517997
Filing Date: 2016-12-13
CPC Classification: B01D,C07C,Y02P

Claim Text:
1. A method of continuous recovery of (meth)acrylic acid, comprising: contacting a mixed gas comprising (meth)acrylic acid, organic by-products, and vapor, which is produced by a synthesis reaction of (meth)acrylic acid, with water in a (meth)acrylic acid absorption tower ( dividing and feeding the (meth)acrylic acid aqueous solution to a (meth)acrylic acid extraction tower ( obtaining a (meth)acrylic acid extract with reduced water content from the (meth)acrylic acid aqueous solution that is fed to the (meth)acrylic acid extraction tower ( distilling the (meth)acrylic acid aqueous solution and the (meth)acrylic acid extract that are fed to the water separation tower (