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。
Taking corn starches as raw material, sodium tripolyphosphate as esterifying agent and carbamide as catalyst, high-viscosity phosphate starch is prepared by semidry process.
采用玉米淀粉与磷酸二氢钠进行反应，制备用作细煤粉沉降剂的淀粉磷酸酯．通过实验，探索出最佳工艺配方及操作条件．。
The starch phosphate ester was developed for settling agent of fine coal meals. The optimum reaction conditions were researched by experiments.
采用玉米淀粉与磷酸二氢钠进行反应，制备用作细煤粉沉降剂的淀粉磷酸酯。
The starch phosphate ester was developed for settling agent of fine coal meals.
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