Process for separating and recovering 3-hydroxypropionic...

Details Process for separating and recovering 3-hydroxypropionic... Process for separating and recovering 3-hydroxypropionic...

2007-10-09

2007-10-09

Yvonne, Eyle (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S600000

Reexamination Certificate

active

10560949

ABSTRACT:
Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.

REFERENCES:
patent: 5705688 (1998-01-01), Fauconet et al.
patent: 6180827 (2001-01-01), Lee et al.
patent: 6281386 (2001-08-01), Fauconet et al.
patent: 1167793 (1969-10-01), None

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