辛烯基琥珀酸淀粉酯的制备研究

The production engineering of ocentyl succinic anhydride starch ester.

对水相体系法制备辛烯基琥珀酸淀粉酯的工艺过程中,淀粉乳农度、辛烯基琥珀酸酐用量、体系pH、反应温度和反应时间等因素对产品取代度的影响进行了详细讨论,并通过一次回归正交试验设计方案确立了最佳工艺参数为:淀粉孔浓度30％,OSA用量5％(对淀粉干重),体系pH8.5～9.0,反应温度30℃,反应时间8h。

This paper deals with the engineering condition of producing ocentyl succinic starch ester in water medium, by using OSA as modifying agent. It mainly discussed the influences of several important parameters to the product. These parameters define the original concentration of starch slurry, amount of OSA added to the slurry, the pH range of the reaction system, the reaction temperature and the reaction period. With orthogonal experiments the optimum technological condition were determined: concentration of starch slurry is 30%, amount of OSA is 5%, react at the pH range of 8.5-9.0, at 30℃ and for 8 hours or so.