To provide a method for efficiently producing a polysaccharide derivative of stable quality in an industrially advantageous manner with high productivity.
The method for producing a polysaccharide derivative includes the following steps (1) and (2); step (1): a step of obtaining a powdery polysaccharide derivative by reacting a polysaccharide with a compound having a reactive functional group in the presence of a basic catalyst, step (2): a step of obtaining a neutralization-treated product having a water content of 142-36 mass% by mixing the powdery polysaccharide derivative obtained in step (1) and an aqueous organic acid solution containing 0.5-1.5 equiv. of an organic acid with respect to the amount of the basic catalyst at an organic acid concentration of 1-80 mass%, using a mechanical agitation mixing device under the condition of a circumferential speed of a rotary blade of ≥0.5 m/s.
MIYAMOTO KATSUSHI
NISHIOKA TORU
MURAI YUTAKA
HIRAYAMA MASUTARO
| JP2011219564A | 2011-11-04 | |||
| JP2012149153A | 2012-08-09 | |||
| JP2010106108A | 2010-05-13 | |||
| JP2011219564A | 2011-11-04 | |||
| JP2012149153A | 2012-08-09 |
Makoto Kataoka