Taking corn starches as raw material, sodium tripolyphosphate as esterifying agent and carbamide as catalyst, high-viscosity phosphate starch is prepared by semidry process.
以玉米淀粉为原材料、三聚磷酸钠为酯化剂、碳酰二胺为催化剂，半干法制备了高粘度磷酸酯淀粉。
2
Fatty acid esters of starch were new and non-ionic surfactants, which could be synthesized by esterifying with moderate catalyst.