Ammonia → 3-Hydroxypropionic acid

A 2 wt % 3-hydroxypropionic acid-containing culture fluid (30 g) from which microorganisms are removed, tridecylamine (180 g), and dodecanol (20 g) were added into a 500-mL three neck flask. The flask was submerged in an oil bath and connected to a vacuum pump. The flask was heated while the solution therein was stirred. When the solution temperature reached 85° C., the vacuum pump was turned on. During the reaction, ammonium 3-hydroxypropionate was decomposed to discharge ammonia and water. These are removed by a cold trap under reduced pressure. At the same time, 3-hydroxypropionic acid produced by decomposition of ammonium 3-hydroxypropionate was extracted into an organic phase formed of tridecylamine and dodecanol. To the organic phase formed of tridecylamine and dodecanol which contains 3-hydroxypropionic acid, a ⅕ volume of water was added and mixed. The mixture was heated to 140° C. to give an aqueous solution containing 3-hydroxypropionic acid.

1. customare removed
2. additiontridecylamine (180 g), and dodecanol (20 g) were added into a 500-mL three neck flask
3. customThe flask was submerged in an oil bath
4. temperatureThe flask was heated while the solution
5. customreached 85° C.
6. customDuring the reaction, ammonium 3-hydroxypropionate
7. customThese are removed by a cold trap under reduced pressure

ORD record

ord-fa11e2b9a28e4348a5e198c4d252681b

Source dataset

uspto-grants-2015_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09029596B2