Patent · US Active

Process and plant for recovering acrylic acid

US10343969B2 · kind B2 · utility

0Cited by

4References

6Claims

0Family size

Assignee

BASF SE

Inventors

Ulrich Hammon · Mannheim, DE
Thomas Walter · Dallas, US
Markus Ottenbacher · Wilhelmsfeld, DE
Frank Huetten · Mannheim, DE

Key dates

Filing date	Jun 7, 2017
Grant date	Jul 9, 2019
Priority date	—
Expiry date	Jun 7, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A plant (1) for recovering acrylic acid, which includes: a absorption column (201); a dissociation column (205); a first line (101) connected to the dissociation column (205); a second line (102) connecting the absorption column (201) and the dissociation column (205); a third line (103) feeding a substream of the mother acid obtained in the crystallization into the dissociation column (205); a fourth line (104) connecting the crystallization apparatus and the absorption column (201); and a fifth line (105) connecting the dissociation column (205) and the absorption column (201).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.