Title:
（メタ）アクリル酸の連続回収方法および回収装置
Document Type and Number:
Japanese Patent JP5765863
Kind Code:
B2
Abstract:
The present invention relates to a method and apparatus for continuous recovery of (meth)acrylic acid, and more specifically to a method of continuous recovery of (meth)acrylic acid, including: conducting gas phase oxidation of at least one compound selected from the group consisting of propane, propylene, butane, i-butylene, t-butylene, and (meth)acrolein in the presence of a catalyst to obtain a mixed gas containing (meth)acrylic acid; quenching the (meth)acrylic acid-containing mixed gas to remove high boiling point by-products in the (meth)acrylic acid-containing mixed gas; contacting the high boiling point by-product-free (meth)acrylic acid-containing mixed gas with water or an aqueous solution to obtain an aqueous solution containing (meth)acrylic acid; and purifying the aqueous solution containing (meth)acrylic acid to obtain (meth)acrylic acid. The continuous recovery method of (meth)acrylic acid according to the present invention may significantly reduce energy consumption and continuously recover high purity (meth)acrylic acid with excellent production efficiency compared to the previous recovery methods.
Inventors:
Baek, Se-won
Kim, Hyun-kyu
Cho, Don-Hyun
Ko, Jun-Suk
Kim, Hyun-kyu
Cho, Don-Hyun
Ko, Jun-Suk
Application Number:
JP2013534838A
Publication Date:
August 19, 2015
Filing Date:
March 12, 2012
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
C07C51/42; C07C57/05
Domestic Patent References:
| JP2011500795A | ||||
| JP2002539104A | ||||
| JP2002514167A | ||||
| JP2005336099A | ||||
| JP58126831A | ||||
| JP2007518796A | ||||
| JP2005336065A | ||||
| JP55127340A | ||||
| JP646225A |
Foreign References:
| US20010007043 |
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners