Propyl propionate is synthesized from propanal with aluminum propox-ide and waterless zinc chloride as catalysts the yield of propyl propionate is more than 92 % and the selectivity is more than 93 % .

以合成出的丙醇铝为催化剂，无水氯化 锌为助催化剂，用丙醛一步合成了 丙酸丙酯，收率可达92%，选择性可达93%。

For zinc salts having better activity to the reaction the reaction condition was optimized using zinc acetate zinc stearate zinc propionate and zinc trimethylacetate as catalyst .

针对实验中锌盐具有良好的活性，分别优化了以乙酸锌、硬脂酸锌、河北工业大学硕士学位论文一 丙酸 锌和三甲基乙酸锌为催化剂的反应条件。

By using lead acetate zinc propionate niobium ethoxide zirconium propoxide and titanium butoxide as precursors zinc and niobium modified lead zirconate titanate ( PZN-PZT ) gel fibers were fabricated by the sol-gel method .

以乙酸铅、 丙酸 锌、五乙氧基铌、四丙氧基锆和四正丁氧基钛为原料，用溶胶-凝胶法制备了锌铌酸铅-锆钛酸铅（PZN-PZT）凝胶纤维。

The synthetic conditions of zinc propionate with propionic acid and basic zinc carbonate as raw materials were studied .

以丙酸和碱式碳酸锌为原料，制备了 食品及 饲料 添加剂 丙酸 锌。

Propionaic acid salt : calcium propionate sodium propionate potassium propionate zinc propionate ammonium propionate .

丙酸盐系列： 丙酸钙，丙酸钠，丙酸铵， 丙酸钾，丙酸 锌等。